New video on how to learn the US system of measures! kzread.info/dash/bejne/q6aelcpse8vRfrw.html 🇺🇸 ERRATA: I know that it’s spelled le Système International, without the final -e. The error occurred by chance, not ignorance. It’s very hard to work with text in videos, and each video takes many days to make, which means the brain tends to filter out errors and interpret typographical errors as correct. If you look, you’ll find typographical errors in all my videos, with text in English or Latin or whatever language.

@ricardolichtler3195

Жыл бұрын

I apologize for my last comment, it was quite rude. Your video is brilliant, as usual. The SI is very simple and elegant, so we tend to think it is universal. As computer programming teacher, one of first exercises I gave to my students was conversion between Celsius and Fahrenheit. :-) Thank you, magister!

@rbon1549

Жыл бұрын

40 Celsius = is a fever 35,5 °C en 37,8 °C. = body temperature

@prunabluepepper

Жыл бұрын

What a beautiful tree 🌺🌸🌺🌸🌺🌸🌺🌸🌺🌸🌺🌳

@bipslone8880

Жыл бұрын

Water freezes at 0, water boils at 100

@mancubwwa

Жыл бұрын

I also feel the need to point that in 1866 there was no SI As SI is relativly modern iteration of metric system accepted in sience community, developed baised on older wariants and officialy adopted in 1960. Also not all metric units are SI units: litre is not for example, it is just equivalent to cubic decimeter.

If you're from Scotland: 30 is death, 20 is hot, 10 is t-shirt weather, 0 is not.

@zak3744

Жыл бұрын

Yeah, I don't think doing ten degree steps is detailed enough. Pretty sure "taps aff" can start at 15 degrees for a lot of folk. 😄

@TheAtomoh

Жыл бұрын

20 is hot? Whaaat

@Komatik_

Жыл бұрын

As a Finn I concur.

@pedrocacela1885

Жыл бұрын

In the Iberian peninsula: 50 is hell, 40 is hot, 30 lets go to the beach, 20 it's nice but it could be much better, 10 better get my jacket, 0 it's snowing lets go out and play, -10 we better stay at home.

@mahatmaniggandhi2898

Жыл бұрын

here its like this 40 is hot 30 is nice 20 is cool 10 is ice

-20 - home freezer temperature, 0 - water freezes, winter in New York 5 - fridge temperature 10 - typical cold tap water temp, mid Spring or Autumn in New York 20 - room temperature 30 - hot summer in New York 37 - average body temperature 40 - high fever (requires medical attention) 60 - typical hot tap water temp 100 - water boils 200 - oven temperature (baking, most common)

@IN-pr3lw

Жыл бұрын

60 ISNT HOT TAP WATER WHAT THE HELL???

@IN-pr3lw

Жыл бұрын

nvm youre right but its 50 here

@tuggaboy

Жыл бұрын

I would consider 40°.C to 50°.C already as hot water...

@Anti_Everything

Жыл бұрын

@Elias HeronBons The temperature may drop below.

@Teneban

Жыл бұрын

I'll join the others and say taking a 60 degrees shower is probably going to burn your skin Another "useful" number is 50 degrees, the boiling point of human blood. It doesn't mean we boil blood every day, but it does mean that anything above 50 degrees is a danger for your body. Especially in some of your less huh... thermally insulated organs. Like balls. I'm talking about your balls. Don't put 50 degrees water on your balls.

I’ve been using almost the same thing with my students “0 is ice and 20 is nice”. This is a good way to make it more intuitive.

Entertaining, informative and well produced. 30 is hot, 20 is nice, 10 is cool, and 0 is ice. A game changer 🙂

@polyMATHY_Luke

Жыл бұрын

Thanks for watching!

As someone who has always used the metric system and never understood the Imperial, I am always terrified for a few moments when I see temperatures in the Imperial, since it either looks like the sun has exploded or it has disappeared. 75 degrees, for example, in celsius would be DEADLY but in Fahrenheit is apparently the equivalent of around 24 degrees Celcius ( a rather nice day).

@vikinggeorge7007

Жыл бұрын

And 200 pounds sounds like a super obese person. And in kilogrammes, it's just 80 kg,a normal person.

@Pandzikizlasu80

Жыл бұрын

As Mr Fahrenheit was from Gdańsk it is very easy to understand his scale for a Pole. He basically divided temperatures measured in his city by 100. 50F roughly 10C is a default temperature here. Below 50F it is cold, above warm. Half a way to 0 or 100 add "very". Everything beyond 0-100F range is treated as extremely dangerous natural disaster here.

@hobogoat2

Жыл бұрын

I do the opposite, I’m American so was raised on the imperial system. Whenever I hear people talking about their 24C day a shiver runs through because that’s below freezing in Fahrenheit lol

@hobogoat2

Жыл бұрын

But hey, 70F is indeed a very nice day to me 😂

@_volder

Жыл бұрын

80/90 is hot, 70 is nice, 50/60 is cool/cold, 30/32 is ice :D

Weirdly enough, 3d printing is what got me used to millimeters more than anything else. Inches are such a clunky unit when you’re working with that level of precision that they’re functionally useless

@carl8703

Жыл бұрын

3d printing also familiarized me with the Celcius scale, since you have very fine control over the temperature of the nozzle, and you may touch that on accident sometimes. 50C is generally the point where something starts being so hot that you have to take your hand off after a few seconds. Each 10C increment after that shortens the time you can touch it by perhaps a second. IIRC 70C to 80C is where you have to remove your hand immediately. 100C boils water obviously, and most plastics start to melt at temperatures around 200C.

@TransSappho

Жыл бұрын

@@carl8703 same here. I usually set my build plate to 50 C and always burn my fingers a bit lol

@highvisibilityraincoat

Жыл бұрын

Most machinists work with thous, which is 1/1000 an inch

@TransSappho

Жыл бұрын

@@highvisibilityraincoat that seems like an absolute pain to try and scale though

@highvisibilityraincoat

Жыл бұрын

@@TransSappho Generally you're not working with inches of clearance.

I am a retired engineer living in Ireland. My primary school education was exclusively in imperial units (feet, pounds etc). My university courses were a mixture of both. The electrical department used SI but the mechanical department used imperial so I am inherently fluent in both systems. The most dramatic news story I have come across relating to confusion between imperial and metric units was the incident of Air Canada flight 143 from Montreal to Edmonton on July 23rd 1983 which became known as the "Gimli glider". Air Canada were in the process of converting from imperial to metric and in the confusion between pounds and kilograms meant they loaded only half the fuel needed. Needless to say they didn't make the journey, but the outcome was without casualty and can be viewed on KZread.

@th3oryO

Жыл бұрын

@@noylj1 Yes and no. The younger generation will need to be educated, but the fact it was never made mandatory in the States like it was in GB/Canada is the reason it never was able to take hold. The older generations never fully switch (my Canadian grandparents used nothing but imperial units or used a converter all the time). Sometimes you just need to implement it and let the mess sort itself out, which it inevitably will. Most of science and much of business either already uses metric or will be able to do so in only a couple of years.

@noylj1

Жыл бұрын

@@th3oryO But, there is no mess now. You want to mandate a mess. Make the whole world drive on the right side, since almost everyone already does so it must be the right way, and then we'll consider it. Was this voted for or simply dictated to the subjects? Or, live your life and leave us alone.

@wildlifeathome

Жыл бұрын

Wasn't the trouble with the Hubble Telescope down to mixing of the two, imperial and metric, and not the correct conversion of one to the other?

@noylj1

Жыл бұрын

@@wildlifeathome no

@noylj1

Жыл бұрын

@@wildlifeathome To test the surface of the mirror, engineers used both a reflective null corrector, which used mirrors, and a refractive null corrector, which used lenses and was supposedly less accurate than the reflective corrector. The null correctors were so sensitive that they could only be used in the middle of the night when there were no vibrations due to passing traffic. When the reflective null corrector showed an error that had not been detected by the cruder refractive device, it was assumed that the refractive device was poorly calibrated and the mirror was ground to remove the ‘defects’ spotted by the reflective device. When a final check was done with the refractive corrector, it showed a spherical aberration of a quarter of a wavelength but it was assumed that this was to be expected with a crude measuring device. The quarter wavelength error turned out to be a real error. The project’s chief scientist, C. Robert O’Dell, spoke for the team who worked on the project saying: “All of us feel horrible.” It is thought that the error in the null corrector arose because the lens of the device wouldn’t descend far enough, and, because the operating engineers were close to a deadline, three household washers were inserted into the million-dollar measuring device.

I'm from Quebec so I'm very familiar with Celsius, However when I'm talking to my American friends my trick is: 16 is 61, 28 is 82 , 0 is freezing. The minuses get more tricky. Minus 11 is about 11. And of course minus 40 is minus 40.

Fun fact: "Summer" in Sweden is defined as when the average temperature exceeds 10 degrees Celsius.

@jmi5969

Жыл бұрын

Ah, Sweden, the sweet spot. Warm and mild throughout the year but never too hot.

@6thdim

Жыл бұрын

What? Is this true? I’m from Norway and in primary school they teach us June July August is summer. Strange that Sweden would have such an informal definition

@speerboom

Жыл бұрын

@@6thdim I’m Dutch and here they teach us that summer runs from 21 June to 21 September. Except for meteorologist. They let summer start on 1 June and autumn starts on 1 September.

@morganjonasson2947

Жыл бұрын

thats the official summer. among the swedish people there are high debates as to what makes a summer. for me who lives in the northern part, summer begins when there is no snow or ice on the ground and ends when the first leaf turn orange. but yeah, the 10 degree rule is the one used by metrologists.

@speerboom

Жыл бұрын

@@morganjonasson2947 Ah in that case… then for me summer starts somewhere in March (April if it’s cold for a long time) and ends somewhere in October (November if the cold stays away). Winter is from December till February. Thus my spring and autumn are really short, almost non-existent.

For us Finns 30 is lava 20 is fire 10 is normal 0 too warm -10 nice -20 pretty cold -30 too cold

@wolfe6220

Жыл бұрын

😂👍

@Teverell

Жыл бұрын

I think that'd finish me off totally

@chitlitlah

Жыл бұрын

Here in Dallas: 40 is a typical day in the middle of summer. 30 is warm. 20 is nice. 10 is chilly. 0 is freezing. -10 is about the average lowest temperature throughout winter. -20 - "Remember that year it was so cold, a lot of power plants went offline and millions lost electricity for a few days so they stayed with friends and relatives and their water pipes froze and busted and their houses were flooded when they returned?"

@wolfe6220

Жыл бұрын

@@chitlitlah And don't forget to add to the -10 description:may cause a 100 car pileup that will kill 6 people because some people don't know to slow down in adverse weather conditions because they think driving a 4 wheel drive is gonna save their butts...

@JacobH-zu1lb

Жыл бұрын

@@chitlitlah Living in Arkansas, I was gonna say the same thing, but I don't need to now.

Man, i remember doing this when the Euro was introduced when i was a kid. Multiplied everything by two to get the price in German Marks initially, but before you know it, you've shifted your entire way of thinking about money to the new currency, and now i need to convert when my grandma talks about old prices. Great way of learning how to multiply, though!

@Digital111

Жыл бұрын

Never been to Europe but I was watching a TV show from Spain and the characters kept talking about "Pesetas" and converting it to Euros, by the last season of the show all you would hear was Euros lol..

@LexieAssassin

Жыл бұрын

Circa '15 I was working in the back window of a McDonald's and found a 1 Deutsch Mark coin. IDK how it remained in circulation that long, but I got to keep it! :D

When it was introduced in Australia we had a memory: Frosty 5's, Tingling 10's, Temperate 20's, Thirsty 30's and Firy 40's. I think it worked well.

Love the Latin version of the rhyme. It's more than 50 years since Australia decided to move to the metric system, and it's well and truly engrained now.

@polyMATHY_Luke

Жыл бұрын

Well done! You are shining examples to the rest of the English speaking world. Hopefully we’ll adapt soon.

@robertthomson1587

Жыл бұрын

@@polyMATHY_Luke Interestingly, the Metric Conversion Board chose the temperature unit as one of its first concerted targets, for much the same reasons as you outlined...everyone used it and talked about it frequently, and it was relatively easy to get a feel for how it worked without constantly converting back to F.

@julieenglert3371

Жыл бұрын

I was at primary school in the 1970s in Australia, when we changed over to the metric system. I feel lucky to have knowledge in both systems, although I find it difficult to remember all the measurements in the Imperial system because I have become so used to the metric system.

@dogphlap6749

Жыл бұрын

@@polyMATHY_Luke Well you sell coke in 2 litre bottles don't you. That's a start.

When we converted to metric measures for many things here in Canada in the '70's, it was just easier to switch thinking to metric units rather than to try to convert back to the imperial equivalent. For example, it became easier to think of distances in kilometers alone, particularly when car odometers amd speedometers and all the road signage became metric.

@WolfgangSourdeau

Жыл бұрын

Canada is such in an ambiguous place when it comes to metric (as in measurement) systems... When people about body heights, they talk in feet. About distances, kilometers (although, sometimes in hours). About body weight, mostly in pounds but sometimes in kilos. About recipes, in cups. Oven or water temperature : farenheit. Outside temperature : both celsius and farenheight. Body temperature : celsius. Officially, you are in metric but because of your southern neighbours, you have to keep using imperial in so many fields. Then... above all, you have to deal with US and UK variants of imperial. I guess that's the price to pay when you used to be called British North America :-).

@heronimousbrapson863

Жыл бұрын

@@WolfgangSourdeau It would be more accurate to say that the reason for the continued use of imperial/US customary units in Canada is because the United States is its largest trading partner which means a high level of integration between the economies of the two nations.

@commonomics

Жыл бұрын

But Canada uses imperial for so many things

@EpicToadRage

Жыл бұрын

What is a third of a Kilometer? A third of a mile is 1760 feet... There are 10 millimeters in a centimeter. There are 10 centimeters in a... uhhh...? There are 100 centimeters in a meter. Okay, we're going by 100 now. So there are 100 meters in a... uhhh... crap. Okay! There are 1000 meters in a kilometer. Is metric on base 10, or on base 10/100/1000?

@WolfgangSourdeau

Жыл бұрын

​@@EpicToadRage There are 10 centimeters in a... *decimeter* So there are 100 meters in a... uhhh... *hectometer* Btw, you also have 1 liter in a 1000 cubic centimeters. And if you will those 1000 cubic centimeters of water, you get 1 kilogram.

As someone who used imperial system growing up (Fahrenheit, feet, inches, etc) metric and centigrade are so much easier. Started using Celsius temperatures after high school chemistry showed me how much more sense it made over Fahrenheit. I also like just being different 😂

@ryans413

Жыл бұрын

As a Canadian growing up we kinda use both we use imperial for are road speeds and are temperature but will still use metric for baking and measuring things we say feet and inches it’s kinda a mess

@-uj9rw

8 ай бұрын

The last part of the sentence is so true and relatable😅

When Australia converted from the 'F word' to the 'C word' for temperature in 1972, it took a while for me to get an intuitive sense for it. That is, until I heard something like what you suggest, except that it went: The cold singles - the cool teens - the temperate twenties - the torrid thirties - the fierce forties. The other units didn't give me any trouble and I can still work just as easily in British Imperialist or French Napoleonic. The last bastions of non-metric units were babies and fish - they just sounded so much more impressive when said in pounds and inches.

@wynoglia

Жыл бұрын

That's nice!

@theonly5001

Жыл бұрын

For babies we do grams/cm. Which is like 2000-3000 grams with like 30cm to a newborn. Meters and kg don't make sense there because they are not granular enough. Once you get above a certain point you then usually only slash a few places and have the standart measurement

@commonomics

Жыл бұрын

I like this much better

@dinamosflams

Жыл бұрын

so that's why australians started to use cunt to show heavy emotions while americans use fuck

@andreewert6576

Жыл бұрын

For some reason, babies are still described in pounds even in german(y). Not officially mind, but between parents and grandparents. Then again their age is also counted in months for way too long.

As someone in the US (who thinks the Imperial system is nuts), I've been doing this for about a decade- both my mobile and my computer show Celsius so I have a good intuitive sense for the temperature scale. Decades ago, during President Carter’s short-lived push to change the US over to metric, a friend complained that she didn't want to have to “convert” gallons to liters and feet to meters and I said she didn’t _have to_ - she just had to have an idea of what those measurements _were_ - it didn’t matter what they happened to be in the other units she was used to. (She didn’t know _exactly_ what a foot or a gallon was, either-no one does-she just had an intuitive sense of what they were.)

@polyMATHY_Luke

Жыл бұрын

Well said. Hopefully someday soon we’ll get a new push for Metric. Also it’s time to get rid of daylight saving time haha

@jeff__w

Жыл бұрын

@@polyMATHY_Luke “Also it’s time to get rid of daylight saving time haha” I find it funny (well, not really) how every November and March the newspapers are full of stories about how *everyone* _hates_ changing their clocks back and forth (unless you live in…Phoenix(!)-and the rest of Arizona or Hawaii, where DST is not observed). But somehow we still have to do it.

@youtubehandlesareridiculous

Жыл бұрын

I'm a physics student, so I think when doing actual science it makes sense to use SI because of how things like volume and lengths are not based on random multiples like 12, 5280, and 16 but 10's. But for average everyday life for most jobs like a fast food worker, a philosopher or an accountant, I don't see why it matters. Most people don't do painful measurements/conversions often enough to justify a costly/headache switch in my opinion. Recipes tell you how many ounces to use, people know how many miles to drive, etc and they don't need to do much calculation in daily life.

@KBinturong

Жыл бұрын

When France switched to euros we had to goes this process too. It was a bit weird but it pass. It’s only for old people that’s difficult !

@ScottAtwood

Жыл бұрын

@@youtubehandlesareridiculous, practically speaking, metic and customary units are both good enough for the every day things that most people do. Switching would be a one time cost to society it switching over the physical infrastructure and for the people who grew up with customary units. But afterwards, there are long term benefits: easier imports and exports, easier for tourists to and from the US, easier to speak to and be understood by a global audience, one set of tools and measures, and so on.

When you started explaining the reasons why you taught it this way, I began to notice the similarities with your linguistic teaching philosophy, and I am immediately understood why you have this on your Polýmathy channel. And suddenly I was like, “Bravo, Luke. Bravo.”

@polyMATHY_Luke

Жыл бұрын

Thanks! I’m really glad you like the connexion.

@Moses_VII

Жыл бұрын

@@polyMATHY_Luke The way you spell connection. First saw that and was confused by it in Lord of the Rings. I thought it was archaic, like ax. But then I learned that neither connexion nor ax are archaic, but they are in fact still in use in America. Axe without an 'e' looks so wrong.

@sirknight4981

Жыл бұрын

@@Moses_VII Connection is actually largely considered archaic in America but it's simply considered 'dated' in the UK (& other commonwealth nations I imagine); I say dated because the connexion spelling is actually not as popular with younger people as it once was in Britain and it's steadily losing ground because of this even though some significant institutions still consider it acceptable or preferred use. I prefer it myself honestly and I imagine Luke does too especially because the spelling is a standard alternative English spelling that preserves the Latin spelling of the etymological root of this word (i.e. 'connexio'). The spelling connection won out though as I believe, because the XIXth c. was a time of massive spelling reform and especially spelling simplification (which was most severe in the States) in English and therefore irregular spellings like connection, where the 'ct' morphed into an 'x'-when *logically* it *ought to be* as simple as 'connect'+'ion'-were considered suspect.

@ikbintom

Жыл бұрын

@@sirknight4981 Yes, many people will view the word as being derived from the verb 'to connect', which cannot be spelled 'to connex' of course :D

I love the metric system! It is much easier to compute measurements using metrics!

The reason for the weird multiples in older systems is that they were more flexible when dealing with indivisible physical objects, like coins. For example, the old British monetary system - which is actually the Roman system! - had: 1 pound (libra) = 20 shillings, 1 shilling (solidus) = 12 pence (denarii). The penny was sometimes further divided into 4 "farthings", which have no Roman analogue, I believe. The prime factor representation of 10 is 10 = 2 * 5. But for 12, it is 12 = 2^2 * 3. In other words, 1 shilling could be divided evenly into 2 , 3, 4, or 6 groups of actual penny coins. An imaginary base-10 shilling could only be divided by 2 or 5, which would have been far less practical. Today, units like "pence" or "cents" are usually small enough for people not to worry over when rounding up or down. And everyone has learnt in school how to do decimal point arithmetic, and also has a computer at hand to do it for them. We rarely use small coins, and even if we need to, we can be assured that someone somewhere could always exchange them for more convenient ones. But back in the day, you had to work with what coins you had physically available to you, and you may have never learnt to do arithmetic with large numbers. I am 100% pro metric and decimal systems, by the way. This was just to show why non-decimal systems would have made a lot of sense historically.

@catsandkittys

Жыл бұрын

I was going to say something similar. It’s so easy for people to scoff at the old system but it was smarter than many people give it credit for. 1 shilling = 12 pence and you can break that down nice and evenly into 1/3 as well as 1/2 and 1/4. Something you can’t do with a dollar. Which as you said was important when it comes to coinage

@ronaldgmaster5782

Жыл бұрын

This is exactly why the Imperial system is far superior to metric even today. Also the celsius gradients are much less precise for everyday temperatures. The celsius jumps are much bigger.

I grew up in Celsius and since lived in the states for 10+ years. My mental conversion is knowing 0C is roughly 30F, and 35C is roughly 100F, that means every 10F is roughly 5C so you get 0-30, 5-40, 10-50, 15-60, 20-70, 25-80, 30-90, 35-100 and these are good enough for determine what I should wear really.

@keithkannenberg7414

Жыл бұрын

Yeah, you're off by 10% (9F to 5C) but that difference doesn't matter in every day life.

@francisdec1615

Жыл бұрын

Fahrenheit also miscalculated when making his scale, since 100F was supposed to be normal human body temperature, when it's in fact 37.78 C. That's not really fever but a bit higher than normal.

@lEGOBOT2565

Жыл бұрын

0C is 30F 10C is 50F 20C is 70F 30C is 85F 40C is 105F 50C is 120F 60C is 140F 70C is 160F 80C is 175F 90C is 195F 100C is 210F These (except for 10C and 60C) are rounded to the nearest multiple of 5. If someone says it's 78 outside, they either mean it's about 173F or 25C. pick the reasonable one

@Dunkle0steus

Жыл бұрын

I just remember the standard points 0 C = 32 F 10 " = 50 " 20 " = 68 " 30 " = 86 " And the 5:9 ratio and it's pretty good for any temperature estimation I need

@lesfreresdelaquote1176

Жыл бұрын

@@francisdec1615 In fact no... Weirdly enough, the guy used _his horse temperature_ to define his scale. And horses have a normal temperature higher than ours.

I was talking with a friend in Texas once about this. She said "Celsius is weird," and my reply was "No. 0° is when water freezes, and 100° is when it boils. Everything else is based around that." Her reaction was "Wait, that's it? What's wrong with my country?!" 😂 In all seriousness, though, Fahrenheit is so strange. The only time we use it here, for whatever reason, is baking.

@rebeccahicks2392

Жыл бұрын

Fahrenheit is more intuitive when talking about the weather (with the hottest temperatures in most places being around 100, the coldest around 0), Celsius is more intuitive in the context of chemistry, cooking etc. (Which makes it funny to me if anyone uses F only for baking),

@corinna007

Жыл бұрын

@@rebeccahicks2392 there's nothing intuitive to me about using Fahrenheit for the weather. 😅 It's just confusing. Like, why does water freeze at 32? Why is 0°F close to -20°C? It doesn't make sense to me. Or most other people I know who aren't American.

@antimatterhorn

Жыл бұрын

@@corinna007 but how often are you concerned about the phase change temperatures of water? and as a corollary, are you only sufficiently concerned about the phase changes of water to base your _intuitive_ sense of temperature around them at sea level pressure, but not so concerned that you wouldn't have a floating temperature scale that changes with altitude (where water doesn't boil at 100 C anymore)? arbitrary is arbitrary, so you might as well use a system that matches your experience, and we just don't experience 100 C in our lives, or else our lives end very quickly.

@corinna007

Жыл бұрын

@@antimatterhorn My town was 40° last summer (and it was miserable), which I think is close to or over 100°F, so if you go by Fahrenheit, then yes, we do get over 100°. But that still doesn't make sense. Water freezing at 0°, which we experience for 6 months in winter every year, makes a lot more sense than 32°. I'm sorry, but Fahrenheit is just strange.

@LMvdB02

Жыл бұрын

@@antimatterhorn Nah you don't get it. 0° is associated with winter because then the lakes and canals freeze. 20° is room temperature. 30° is summer. Very intuitive.

Hi, the "dollar" was originally a Spanish coin, which was used in America when it as under Spanish rule. Later on the "anglo-americans" started to use it because it was hard to get British coins at the time. After the Declaration of independence the dollar (el dolar) became the official currency of the U.S.A.

We've been using metric for everything in New Zealand since 1976, however for a few things many people often still use imperial measurements, e.g. baby birthweights in pounds, peoples' height in feet and inches.

When Canada switched to metric temperatures in the '70s, I remember being taught this sort of trick to learn the system intuitively. Thirty years later, when I was visiting Texas and heard the temperature was 53 degrees outside, I did a double-take and then realized I was in the US and it was Fahrenheit

@lesliefranklin1870

Жыл бұрын

In the U.S. Southwest deserts, temperatures can get up to 53 degrees Celsius, in the shade.

@NikkyElso

Жыл бұрын

frankly Texas can feel that hot sometimes

@lawrenceseguin1865

Жыл бұрын

@@lesliefranklin1870 It was early April in DFW so it was definitely 53 Fahrenheit! 😁

@lesliefranklin1870

Жыл бұрын

@@lawrenceseguin1865 The official record in Death Valley, California was about 57 Celsius, in the shade, for many years. That may have recently been surpassed. Of course, rocks, concrete, asphalt would likely be much hotter. I've burned my hands from the coins in my pocket.

@SpringStarFangirl

Жыл бұрын

I mean, knowing Texas...

You are totally correct about "approximately 2 metres" in male heights. In Normal Distribution the area near mean is very densed, so the error of 0.2 metres = 20 cm is critical in that context. 180 cm is a normal height for males in Western countries, 200 cm is normal only for basketball and volleyball players.

@brittakriep2938

Жыл бұрын

An inch ( in german Zoll) is 25, 4 mm. A foot is 30,5 cm and a yard 91, 5 cm or 0,915 m. But this is rather rare needed here in Germany. Inches are mostly necessary in tubes context, or sometimes inchbased Gewinde / threads (?) appear.

@aixtom979

Жыл бұрын

I'm a 197cm software Developer, and glad for those three missing centimeters, so that I don't hit my head on all the standard 200cm high doors all the time. ;-) Only when they messed up, or added a little to the flooring during renovations I sometimes slam my noggin on the lintel. Or when I wear hiking boots or something with thicker soles.

@mikahamari6420

Жыл бұрын

@@aixtom979 Yes, these milli- and centimeters are very important. 🙂

@brittakriep2938

Жыл бұрын

@@aixtom979 : When i , german, was at school, in 8th class ( grade?) our female main teacher ( Klassenlehrer) became pregnant, so in second half of year we got a new main teacher. This man was exact 2 Meter in height, and had the name Stoffel. He came from a region next to german/ swiss border, where there is a mountain ,Hohenstoffeln' ( high Stoffeln). The teacher told us, that for his height and family name , he got the nickname ,Hohenstoffeln' . A sidenote: Being german and having the name Stoffel is not so funny, in popular german ( slang?) a Stoffel is a boring person, who talks nearly nothing and doesn' t know courtesy and has no interesst in anything.

@annasolovyeva1013

Жыл бұрын

@@brittakriep2938 LOL.

I worked healthcare for three decades. We used metric measurements, and military time. Very easy when you get used to it. And thanks for the rhyme!

I live in the US and I have taught myself the metric temperature system by keeping my devices on C. Many of my friends live in other countries so it seemed unfair to make them try to convert when I say, oh it’s hot today, 40 Grad. (Not 104 F.) it also helps that my oven somehow turned to Celsius and I never changed it back. A friend told me to think of the length of a mattress as two meters (ok, that’s cool). I still have a little trouble visualizing how far a Kilometer is, and I couldn’t tell you how many square meters a house or apartment contains. My method on temperature is 10 C=50 F and go up or down by 9 with Fahrenheit. Counting by 9 is a hoot but it has an interesting system - try it. I also keep in mind that for ever 5 degrees in C, F increases by 9. The refrigerator should be 4 degrees. You are right, it’s about the visualization and association of temperature that matters. I had hoped we would begin enforcement of metric, but I see that isn’t going to happen. I can understand 3 cm better than 3/16 of an inch….WTF. Not sure what Americans are afraid of with learning metric. Guess they don’t know that’s how our monetary system is structured.

@cuzthatshoweyroll

Жыл бұрын

I feel the same way! And everyone thinks I'm a weirdo for it.

@thethrashyone

Жыл бұрын

No one's "afraid of" anything, people simply stick to what they know. If someone needs to measure out something yea long, strictly for personal use, then what does it really matter that they go off the measurements that are intuitive to them (inches) as opposed to a metric they neither have the time nor patience to sit down and learn throughout the course of their busy lives? There is simply no practical incentive for most people to do such a thing, other than some sort of wishy-washy idea of "being sensitive" towards the rest of the world, which...I mean, frankly, bugger the rest of the world's sensitivities. "This life is mine to live and I will live it to the parameters that I see fit" is a more than noble pursuit. That said, I have no issue whatsoever with enforcing the use of metric in schools. Let the little ones, who still have the malleable brains capable of learning new tricks quickly and with minimal practice, be the ones to spearhead a future measured in metric.

@darkanstormy

Жыл бұрын

To help make it easier, a metre is about the same as a yard. On a side note, a metre is the unit of measurement, and a meter is a device.

@thethinredline4714

Жыл бұрын

The metric system system all evolves around water, water freezes at o degrees boils at a hundred 1 liter of water is 1 kg 10 centimeters x 10 cm x 10 cm of water is 1 kg and is 1 liter 1meter x 1 m x 1m of water is one metric ton

@nutyyyy

9 ай бұрын

It is quite funny when Americans will use fahrenheit here and not even notice half the time that nobody understands what they mean or cares. And it's a shame. It's not any I'll intention on their part or anyone else, but it is a good example of something being lost in communication, and I do think it if you're traveling somewhere you ought to use the system that is used there. Metric is however universal enough that it does seem reasonable to use it anywhere, even the US. Though I wouldn't expect an American to speak differently for me if I was visiting.

"Madò sto a fa a colla" is the most beautiful and romantic way of saying you're sweating, and nobody can convince me otherwise

LUKE: Celsius: 30 is hot 20 is nice 10 is cool and 0 is ice. 100ºC is water boiling at sea level, go up a mountain to get your tea sooner. 82ºF is 28ºC 61ºF is 16ºC -40ºF = -40ºC And many other convenient conversions.

@carl8703

Жыл бұрын

You can get your tea sooner, but it may taste rather flat and you might not be able to get a second infusion out of the leaves.

Yes!!! I’ve used that little rhyme to teach elementary kids in the classroom and adults on vacation. I found it in an old teachers’ edition of a math book.

@polyMATHY_Luke

Жыл бұрын

Great!

I lived in Alabama where it was 100 degrees F. I was moving to the Netherlands. I looked at the map and saw Amsterdam was at the same latitude as Northern Canada, which I've been to and know it's bloody cold. Amsterdam was only 34 degrees in August. They were just above freezing! I went with all this cold weather gear and discovered the difference between Celsius and Fahrenheit the hard way as I poured sweat out of my Gortex boots.

@ivoryowl

Жыл бұрын

Oh, I can already imagine the looks of the people when they saw you looking like a padded cushion in plain Summer. On the flip side, you created your own personal sauna! :D

The last phrase "Sto a fa' la colla" is roman slang and litterally means "I'm making glue" since the temperature is so hot that your skin gets sticky by sweating. Not what you expect to read in an official document lets say. Perfectly executed 💯

Yeah I'm in southern New Mexico, I explain Celsius to friends as 40 is hot, 30 is warm, 20 is room temp, 10 is brisk/chilly, 0 is freezing

@bl00dhoney

Жыл бұрын

30 is hot. 40 is too hot

@elchavoguero

Жыл бұрын

@@bl00dhoney That's also a reasonable way to put it lol. It was just shy of 40 today, and I can confirm, it was too hot

@jinushaun

Жыл бұрын

Let’s be real. 30 is hot and 40 is a heat wave anywhere else in the US. 😂

@TheBLGL

Жыл бұрын

@@bl00dhoney They said Southern New Mexico, 40 is normal for summer there. Or higher. Last time I was there it was 45. Of course they’re going to call 40, not 30, hot. 30 just is not that hot here, especially in Southern NM (I live in Central NM which is a little cooler).

@TheBLGL

Жыл бұрын

And you don’t explain that water boils at 100, cause you’re in New Mexico and it doesn’t. 😂 (for those not in NM, the elevation causes the boiling point to be lower. It’s 94 in Albuquerque, I know this because I’ve burnt peanut brittle before I realized that you have to adjust temps in candy making at high altitude, so I tested the temp at when my water boils. 202 F or 94 C).

The rhyme for outdoor temps seems super easy to remember. Working in healthcare I just memorized two temps...37.0°C & 37.8°C. From there I can figure out if my patient is normal or into fever territory. I also know our fridges for food and meds have to be kept in a range from 1-4°C and the freezer at or below -18°C.

I just have to say something, you are absolutely amazing at doing arguments. you pick your words so carefully, and you are just very convincing with how you lay out your videos

For those using/learning the Fahrenheit scale, here's the corresponding numbers from Luke's poem, and I've expanded upon it: 104 is scorching (40C) 86 is hot (30C) 68 is nice (20C) 50 is cold (10C) 32 is ice (0C) 14 is snow weather (-10C) What I would use as an American instead as a rough guide, though this can vary from location to location: 110 is scorching 90 is hot 70 is nice 50 is cold 30 there's ice 10 is snow weather

@simonvonroenn

Жыл бұрын

"68 is nice" - we were so close guys

@ToutCQJM

Жыл бұрын

60 is nice

@fewwiggle

Жыл бұрын

Hmmmm, at least on our bit of the earth, isn't snowfall more common around 32 rather than 14F ?

@yakitatefreak

Жыл бұрын

@@fewwiggle I live in a part of the world where snowfall has happened once in my lifetime in my home. My parents have ever experienced snowfall twice in their lifetime in that same hometown. It also dips below 0C/32F during winter often enough.

@erics607

Жыл бұрын

@@fewwiggle I live in Wisconsin, and you can have snow at 32F, but there's a good chance that it will melt fairly quickly. Anywhere from about 20F to 32F you will get snow that is wet and heavy. When you get snow around 0F or colder, it is super light like glitter. The super lite snow you can sweep off your driveway, but the heavy wet snow you get around 25F, it will feel like you just went to the gym and did heavy lifting with cardio for an hour after shoveling it.

I can sympathise a bit with Americans on this: I live in the UK which has been slow to adopt metric. I was largely raised by my grandparents (both parents working), and they would exclusively use Fahrenheit and other old-timey units. It sounded so alien to me, so I imagine for many Americans, it must feel at least as alien when exposed to the units the rest of world use. So I applaud KZreadrs who increasingly are helping to normalise metric; it will come in time and it's worth the effort. An aside: when I watched Star Trek as a kid, and I heard characters stated to be around 2m tall, I assumed people were taller in the future; just as people in the past were, on average, shorter. I hadn't considered until now that it may have been an error from the writers.

@polyMATHY_Luke

Жыл бұрын

Thanks for the comment. Yes, I think the change will inevitably come. The fact that it hasn’t is tied partially to the dominant role Anglophone nations have played on the world stage (doubtless there is an anti-Napoleonic history in the British recalcitrance). The US and UK export ideas and culture so readily that we rarely feel pressured to adopt different units from the outside world. The sad part is that some Americans or Brits seem to associate the old units with national pride. I find they a shame since there are many things to rejoice in beyond a system of units that, ultimately, makes it harder for Anglophones to interact in the sciences or with people from outside the country.

@carlos_takeshi

Жыл бұрын

Metric is being used where it's useful, for the most part, but I don't see it replacing the customary units in the US. The fact is, in day to day life, the "advantages" of the metric system never come into play. The factors of ten conversion is great for doing math and physics, for example. If your measurements are in kilograms and kilometers but your equations are in grams and meters, it's trivial to move the decimal points around to make things work. Daily life doesn't involve math and physics problems for people, though, so that bit of convenience is beside the point. Pay attention to how people actually use the units, and the conversions between units basically never happens. Apartments are listed in square meters or square feet. It's easier in metric to convert to square kilometers or square centimeters than it would for square miles or square inches, but nobody ever will do any of those things so who cares? Similarly, in metric long distances (like city to city) are kilometers, medium distances (down the hall or across the street) are in meters, and short distances are in centimeters. Sure, converting from one to another is easy, but no one would ever say "it's about a 5,000, 000 centimeter drive" or "Tom is the tallest guy I know. He's almost 0.002 kilometers tall!" In the same way, it's miles for long, yards for medium, and feet and inches for short. And the same goes for all the units. If you're doing science, you're probably using metric. If you're not doing science, then it really doesn't matter that much and it won't be worth the effort to switch.

@edonveil9887

Жыл бұрын

@@carlos_takeshi would it make sense to have three temp scales, one for weather, another for medical use, and third for cooking?

@carlos_takeshi

Жыл бұрын

@@edonveil9887 If it's necessary to unify on a single scale then it has to be Kelvin, right? Transition points of pure water at one atmosphere is as arbitrary as anything. The Kelvin scale is an objective measure, not arbitrary at all, where zero is at a point set by physics itself, below which it is impossible to go. So I guess the mnemonic becomes: 303.15 is hot 293.15 is nice 283.15 is cool 273.15 is ice Kelvin is the SI unit of temperature already, so there should be no opposition to using it.

@Mankepanke

Жыл бұрын

@@carlos_takeshi Tell me you are blinded by the problem, without telling me you are blinded by the problem. The fact that you even consider all of that useless and unfathomable just shows the brain rot you got from the system that makes that hard and obscure. You sound like a blind person raving about how useless sight is because you can always hear danger coming and feel edges on the sidewalk with your cane and why would you ever want to feel danger with your cane ("too late at that point") or hear edges ("sensory overload").

Another important one: when it's 0° or lower you know to expect ice, so you're cautioned against slippery surfaces

@polyMATHY_Luke

Жыл бұрын

Quite so!

For me, "hot" is highly subjective because it depends on humidity and air movement. 30° is nice if high humidity and stagnant air aren't causing you to sweat buckets.

@stinkygremlin267

Жыл бұрын

In Ireland 26 is Satan's armpit while 30 in Spain is doable

1:20 Just for clarification, metric and SI are not synonymous. There are different flavours of the metric system, SI is but one of them which is the internationally agreed standard. That means there are units that are metric, but not SI and thus not standard. An example is the kilopond, a unit of force. It is very much part of the metric system, but the SI unit of force is the Newton. Another example is mmHg for pressure, metric but not SI. The SI unit for pressure is the Pascal (used to be Bar, but that's another story).

@Moses_VII

Жыл бұрын

mm of mercury is metric? Well, it's not inches of mercury now I think about it, so it is metric.

@SmallSpoonBrigade

Жыл бұрын

That's an important distinction, as metric and imperial measurements are both SI derived and have been for quite a while. The main difference is how the two sets of measurements choose to divide the measures up and where they choose to put their 0 points. It's rather unfortunate that the public at large is not aware of that.

@sshhii

Жыл бұрын

Also Celsius vs kelvin and m/s vs km/h

@cinamontoast2555

Жыл бұрын

I guess i use SI as i have never in im whole damn life heard of the Kilopond it mmHg but have always used Newtons, and remember both Bar and Pascal being a measurement of pressure

I’ll agree that the metric system has advantages sometimes but there is a reason we still use imperial for certain things. Fractions are actually more exact and once you understand them more versatile. But more importantly, Fahrenheit is structured around our experience of temperature, 0 being basically as cold as we typically deal with and 100 being as hot, instead of the boiling and freezing point of water. In a lab use Kelvin/ Celsius

@sahej6939

Жыл бұрын

but is freezing 🥶 35 or 0? The expression “below freezing”, does it mean below 0 or below 35? When ice is forming on the ground?

@LSFord

Жыл бұрын

@@sahej6939 below freezing is below 32* F which is the same as 0* C and it refers to the freezing point of water because that causes the environment around us to change. So it’s an important point, but doesn’t change that Fahrenheit is based on the human experience of temperature

@nutyyyy

9 ай бұрын

​@LSFord The American experience of temperature* Again, you look at it that way because Celsius is unfamiliar to you. Whereas to almost everyone else, Celsius is far more intuitive because it's familiar. It also makes more sense in other applications. So there's no reason to think fahrenheit is superior other than the subjective reason that it seems more intuitive to you.

@LSFord

9 ай бұрын

@@nutyyyy no no no, it’s not about an American experience it’s based around all humans. 0 degrees Fahrenheit is about as cold as we feel in our environment, and 100 is about as hot as we feel. Celsius 0 degrees water freezes, and 100 water boils. This isn’t my opinion it’s a fact. Fahrenheit is structured around humans and Celsius is structured around water. I never said 1 was superior to the other but if you’re measuring temperature as it pertains to the human experience, not when water boils or freezes, then I guess Fahrenheit is superior. And if you’re being scientific then you should use Kelvin, so Celsius is useless I guess?

I thought I had wasted 12 minutes of my life watching a video with a misleading title , but after spending 3 weeks in Europe I can’t believe how effective this is. Love this channel. Please expand on this system for learning a new language.

@polyMATHY_Luke

Жыл бұрын

I’m glad you found it useful!

How Anders Celsius determined his measurement scale: The freezing point of water at 0° and the boiling point of water at 100°. Two universal and reproducable constants of the most important substance on the surface of this planet. A nice decimal scale. How Daniel Gabriel Fahrenheit determined his measurement scale: The coldest temperature he could create in his own house by mixing several chemicals together at 0°, the freezing point of water at 32° and "the average body temperature of a healthy human" at 96°. Also, the distances between the units on an actual thermometer are not equal. Now tell me, which one of the two look more scientific, universal and usable to you? (Yes I know, Celsius initially placed the freezing point of water at 100° and the boiling point at 0°, but Carl von Linné switched them around. That doesn't really matter.)

@edonveil9887

Жыл бұрын

Let's not forget that Celsius was from Sweden. He probably went to a bastu (which most call a sauna) and poured water on the stove. He notes boiling water. Then rolls in snow and notes melting ice. So giving these cases values 0 and 100 made a lot of sense.

@Mainyehc

Жыл бұрын

The funniest part about the average 96°F body temperature debacle was that 100°F was indeed *a* body temperature. Of a pregnant woman. 😂

@SmallSpoonBrigade

Жыл бұрын

Except that it's only true at sea level and if you've got very clean water. Any other condition will lead to those numbers migrating one way or the other. It's a pretty dumb basis for a measurement outside of scientific contexts. And even then, it doesn't make much sense as it's going to look extremely weird when we get off the Earth and onto other planets where it will breakdown even further.

@untruelie2640

Жыл бұрын

@@SmallSpoonBrigade For scientific purposes there is the Kelvin scale.

@untruelie2640

Жыл бұрын

@@SmallSpoonBrigade The sea level condition is also an advantage, because it allows you to measure air pressure/height above sea level by just boiling some water and putting a thermometer in it. As far as I know, Roald Amundsen used this method to measure his ascent of the polar plateau on his way to the South Pole.

Some older people in the UK still use fahrenheit. Often swapping to fahrenheit ("It's 100 degrees!!") when its hot and using celsius when its cold ("It's 5 degrees!!")

@vincentng2392

Жыл бұрын

In Canada Celsius is used for weather and Fahrenheit is for cooking. For body temperature it's a toss up.

@muhammadalfatih2640

Жыл бұрын

I read somewhere that newspapers would switch between the two systems for a good headline because people would rather buy a paper with the headline "100°F degrees" than 38°C

@blinski1

Жыл бұрын

You know, 'there'll be three digit temperatures outside!' sounds way cooler to say it's hot that just say 'it'll be 38*C!' The same in reverse for freezeing, 'there're be below zero' sounds better than 'below 30's'.

@marcokite

Жыл бұрын

actually some younger people still use fahrenheit in the UK

As a Phoenix resident I approve of this message!

I'd love to see the pro-metric video. I'm conversant in both because I grew up in a German-speaking household in the US, so I used both. I agree with your reasoning about not learning conversion-- it's like learning language through translation instead of target-language-only input. (That's why my Italian teacher doesn't like flashcards and instead makes us draw our words so that we're not using English.)

Fun fact: The Swedish scientist Anders Celsius who made this scale, put 0 degrees at the boiling point of water and 100 degrees at the freezing point. It wasn't changed until after his death.

@francisdec1615

Жыл бұрын

It might have upset him, if they had turned it upside down during his lifetime. But it was objectively correct to do so, since raising temperature is also a measure of increased vibrations on an atomic level and increased entropy.

@katam6471

Жыл бұрын

@@francisdec1615 Yes, I've always wondered why he did it the way he did.

@mowiththehat

Жыл бұрын

@@katam6471 I think it was because during his time, you rarely had to do with temperatures above the boiling point of water, instead you had to handle temperature below the freezing point far more often. Having 100 set for that freezing point meant that you could go even colder without having to use negative numbers. Edit: I can’t seem to find a source confirming that, so I don’t know if it’s true

@untruelie2640

Жыл бұрын

Fun Fact: It was Carl von Linné, the father of biological taxonomy, who switched the scale around.

@stekeln

Жыл бұрын

@@untruelie2640 Fun fact: Also a Swedish scientist if I'm not mistaken.

I live in England, where 26C for more than a couple of days at a time is a national emergency 🤣

I live in the us and needed to show this to my parents so they could learn Celsius because I understand it more than Fahrenheit

@polyMATHY_Luke

Жыл бұрын

Well done!

I didn't get it until I heard the Latin part. Now I will never forget it 👌

Younger generations will easily intuit the size of a meter. A meter is exactly the width of a minecraft block, given that the player character ("Steve") is 1.8 meters tall (slightly taller than Patrick Stewart). Meters were chosen since the original developer (Markus Persson) was from Sweden where metric is the norm.

@matteo-ciaramitaro

Жыл бұрын

Most people can't intuit any distance that well. Rule of thumb growing up was its a yard to a door knob, but I heard that about meters too, and the actual distance is neither. The closest I get to intuiting distances is I've held a ruler before, and my foot is about the size of a foot, so I can usually get somewhere within the realm of correctness based on those things, but it's not an accurate way to do anything. If you want to be right you always have to measure it, whether we are guessing the size in meters or feet we are likely to be wrong by some margin every time

@cmyk8964

Жыл бұрын

Nice catch. Seems like Super Mario blocks are about the same size, assuming Mario is also average-sized when grown to just fit within a 2-block height.

@annasolovyeva1013

Жыл бұрын

@@cmyk8964 2 m is the standard door height and bed length in the metric world.

@SmallSpoonBrigade

Жыл бұрын

@@matteo-ciaramitaro That's part of what's great about imperial measures. Most of the measures have something on the human body that can be used to approximate it. It's definitely not great accuracy, but it's usually good enough if you're not motivated to get a proper measuring device.

@Rdlprmpf12

Жыл бұрын

For distances: Normal walking speed (swift, but not hasty) is ~ 6km/h or 100m/minute.

How to let an italian know you’re a foreigner that’s been living in rome for quite a while: Tell “ao sto affa’ la colla” to the italian person I died of laughter, 10/10 gonna watch again

I remember in elementary school in the 1960s our teachers told us that sometime in the 1970s we would be switching over to metric. I'm still waiting.

Being so used to the old system I forget everything is also written in metric. I recall learning this "new" system in grade school in the 70s. Way easier to learn, it's base 10 and with 10 fingers sure makes it easier.

This guy reminds me of that cool teacher who makes the seemingly mundane topics extremely interesting, those teachers made my 12 years in the school system bearable.

1:56 the U.S. actually modeled their dollar after the Spanish dollar. In fact, the Spanish dollar was usable as an official currency until the Coinage Act of 1857. This is also why we had the half-cent, since there were 8 reals in a Spanish dollar. So 12.5 U.S. cents was the rough equivalent of a real.

@polyMATHY_Luke

Жыл бұрын

Very cool

Been using basically this same guide for years. Totally agree that we just need to quit cold turkey and switch to metric. People will get it pretty quickly. I hope more people see this!

That Phoenix roast was WARM! 😂😂😂

20C is room temperature 0C is when ice starts forming So if there's ice outside it's negative temp If it's cold but no ice it's around 10C If it's comfortable it's around 20C If it's hot it's around 30C If you're in the middle east it's about 40C If you're on a desert it's about 50C If you're in a sauna it's about 65-90C Water boils at 100C Oven is usually preheated to 200C

@yakitatefreak

Жыл бұрын

5C is a cold day (41F) 15C is a cool day (59F) 25C is a warm day (77F) 35C is a hot day (95F) 45C is a typical high for Death Valley in the summer (113F) 55C is the bo8undary for rare to medium-rare beefsteak (131F) 60C is the boundary for medium to medium-well beefsteak (140F) 65C is how some lattes are served (149F) 75C is a typical cup of hot coffee (167F) 95C is about the temperature of water to brew coffee or tea with (203F)

@cinamontoast2555

Жыл бұрын

Hello, i live in the middle east. might want to change that to 50c. at least where i live summer temp hovers around 50c the rhyme then for me is 30 is cool 20 is pleasant 10 is also pleasant 0 is cool (anything negative) stay home with a heater) from visiting places where it dips into the negatives, i realize that i seem to prefer cool temperatures, but i can still handle 40+

@Pidalin

Жыл бұрын

here in Czech Republic, room temperature is more like 24°C becuase we are used to be naked at home :-D

Thank you! I have been telling people this for years. After they ask about my Android phone temprature. Yes, I am an american who uses celsius daily on all my personal devices in the United States. :-)

@doublepmcl6391

Жыл бұрын

NOICE

@shastasilverchairsg

Жыл бұрын

You are a rare enlightened being

About time someone uses KZread to educate with real, useful, and relevant information. Thanks, I hope your channel goes far

@polyMATHY_Luke

Жыл бұрын

Thanks very much

4:14 That's how I got started with Celcius (switched my phone over and never went back) Then over the next few years I felt each celcius temp and it became initiative

As a European, I need a series called "Imperial for Europeans".

The way you said sto a fa' la colla is crazy spot on.

@polyMATHY_Luke

Жыл бұрын

The camerawoman trained me well. I have 5 minutes of outtakes of me doing it wrong haha.

As a Brit who's been raised using both systems interchangeably, I find it easier to think of it in the same way we would fractions. So to get more accuracy, remember that 100 Meters is 110 Yards. It's actually not quite exact but accurate to about 5% which is good enough for an approximation. Certainly good enough for range finding if shooting or playing golf etc. One ounce is 28 gramms so call it 30 and a pint is 0.56 litres so call it half a litre. Again, it's not exact but good enough for baking etc. A gallon is 4.54 litres. We like to buy our fuel in litres and talk miles per gallon here in the UK 😂🤣😂

@khzhak

Жыл бұрын

if you need to convert the numbers, it's easy. starting with C, double it, lose 10%, add 32. reverse that going the other way, lose 32, add 10%, half it. it isn't perfect, but it's close enough for standard deviation.

“French impaired” 😂😂😂 ty I’ve been trying to learn metric for years

This is great advice, and exactly how I learned Celsius (and kilograms)! I just switched my devices and lived in the new units without conversion until I developed an intuitive sense of the units. It helped a bit that I was living in Japan at the time, so everyone around me was already in the same units!

@polyMATHY_Luke

Жыл бұрын

Nicely done

I'm from Southern Spain... I'd say 40 is hot, 30 is nice, 20 is cool, 10 is cold and 0 is ice.

@TheAtomoh

Жыл бұрын

Same as Italy then

USMA meeting brought me here. Excellent explanation! Best way to learn a new system is to work with it directly.

@polyMATHY_Luke

Жыл бұрын

Hi, Retro! Thanks for watching the video. I agree!

I appreciate you teaching us the correct way, and your hat is nice

@polyMATHY_Luke

Жыл бұрын

🤠

In the last weeks in Italy even 30°C would have been "nice", the new hot is at 40°C. Your pronunciation of "aó sto a fa' a colla" was perfect

In northern and west-central Italy, 34 makes you beg for the sweet release of death. In the driest parts of the south, 37 just makes you want a granita.

I have always used this method to convert Celsius to Fahrenheit. If the temperature is 35°c, multiply by 2 = 70°c. Take 10% off... 70 - 7 = 63. Now add the freezing point of Fahrenheit 32°f and you get the temperature which is 95°c It sounds more complicated than it looks.

Thank you for teaching me this . I think I’ll remember it better now.

_"Conversions don't work"_ 4:55 *That's super important!* We need to change our mindset from learning the conversions to just using metric. If you're American, you probably "learned" about a gallon because your chores involved lifting a gallon jug of milk into the fridge. Likewise, you know the size of a liter from filling up your water bottle not by converting 1 gallon into 3.78541 liters.

I'm a Canadian/American dual citizen (in Canada) so I grew up learning both systems. At work we used to take bets on when the first 10+, 20+, and 30+ degree day was going to be each spring/summer.

as a portlander, 30 is way too hot, 20 is hot, 10 is nice, and 0 is cool

"madò stò a fa' 'a colla" That was so funny!

Great video 👍 In my experience going the other way around (metric to imperial) it is nice to know there is a conversion formula BUT learning the temperature intuitively (through exposure and practice) is really the way to go. Nowadays I've become used enough to imperial units I'm often able to intuitively convert temperatures between Fahrenheit and Celsius in an instant to a degree or two of accuracy when I need to. It still amazes me when a relative asks me what 78F is in Celsius and my immediate answer (based on what I know it feels like) is correct to the degree.

@polyMATHY_Luke

Жыл бұрын

Well done!

An unsung metric victory: In 1959 the US and others redefined one inch as exactly 25.4 mm. Decimal inches are practically metric. In engineering, I find statics problems simpler in US Customary units but metric is far better for motion and flow.

@RenatoRamonda

Жыл бұрын

...and yet, when I learned about unit conversions in high school (including odd ones like the Troy Pound vs Avoirdupois, and whatever) I learned the inch as "2.5438..." cm, approximate (I used to be able to remember 5 decimal digits, they might be wrong, it was... 25 years ago 😀 Probably because the book was from the 70s, or earlier.

@SmallSpoonBrigade

Жыл бұрын

It was better, but with modern computing equipment, it's not as much of an issue as it was. I do still prefer to use metric units for that, but the difference isn't what it used to be when you can simply define variables to cover the conversion and be done with it. When engineering things that have to interact with things measured with imperial units, one set of items is going to have to be converted one way or the other.

@Pisti846

Жыл бұрын

I thought the agreement was a universal definition of the yard between the US and British Commonwealth with a foot defined as a third of a yard and an inch as 1/36th of a yard. Also, I believe Ford starting using decimal inches with the Model T while other manufacturers were using fractional inches.

Thank you so much…this was really helpful

@polyMATHY_Luke

Жыл бұрын

Glad it helps!

Informative - and entertaining! Thank you!

@polyMATHY_Luke

Жыл бұрын

Thanks!

An advantage to being from Puerto Rico is being exposed both to SI and USCS units regularly. Milk is by the gallon, but gas is by the liter. Speed limits are in miles per hour, but road markers are in kilometers. Land lots are measured in square meters, but houses in feet, and so on. However, we do lean towards the USCS and are more familiar with that one.

@OntarioTrafficMan

Жыл бұрын

Cool, I didn't realize/realise that Puerto Rico was like Canada and the UK in using a crazy mix of measurement units.

@jl63023

Жыл бұрын

@@OntarioTrafficMan Tbf that's everywhere, many people* just interchange between imperial and metric when it comes to things like personal height and weight, and some measures of lengths and volumes when convenient even if metric is the official system * I can only speak for English speakers

This presentation is one of the most practical, knowledgeable, and entertaining on the metric system that I have seen. I am delighted to see that you are a BIG advocate of the metric system, as I am. Moreover, you take exactly the right approach, the intuitive one, not the cumbersome conversion route, which has largely been responsible for anti-metric sentiment on the part of some here in the U.S. I'd love to see more from you on this topic. (As a Classics postgraduate, I follow your channel mostly for the Living Latin, Ancient Greek, and linguistics. I am most impressed with your knowledge of the phonology of those languages at various periods. You ought to write an amplified version of Allen's Vox Graeca and Vox Latina, based on your period charts.)

@DemPilafian

Жыл бұрын

True. There are lots of well-intentioned videos out there explaining math tricks to do various unit conversions, and those videos do more harm than good. I switched my mobile phone, car, and wall thermostat to Celsius, and within days I had an intuitive sense of Celsius - no unit conversions needed.

Had a crew (construction) trying to convert metric to standard from prints designs from Madrid. I sent the crew leader to the CTR, central tool room, to get a couple of metric tape measures. In less than ten minutes they understood how easy it was.

this is such a useful mental trick to have! thank you! i have been using the imperial system so long it is just ingrained at this point. i play a lot of space travel games so i am fairly used to distance in metric but temperature was a whole different beast for me. BTW i know a simple trick for remembering which side of the ship port and starboard are. its super simple and once you hear/read it you will never forget: Port and Left have the same number of letters. it's that simple. not really a math thing but still useful.

@thethinredline4714

Жыл бұрын

The metric system system all evolves around water, water freezes at o degrees boils at a hundred 1 liter of water is 1 kg 10 centimeters x 10 cm x 10 cm of water is 1 kg and is 1 liter 1meter x 1 m x 1m of water is one metric ton

This explanation is nice, I never hear before about 30 hot, 20 nice, 10 cold, 0 ice. In my country El Salvador 30 is warm it is almost all time that temperature. And it could be nice to hear more arguments.

@gaia7240

Жыл бұрын

In Italy 30 is hot but bearable, 20 might be cold outside and warm inside

@Komatik_

Жыл бұрын

As a Finn I imagine you'all are fire elementals from now on.

I'd never heard your mnemonic poem before. I used to think of 40° as "hot" and 30° as "warm", especially after having spent some summers where temperatures in the 40s are common; now, older and wiser, I agree: 30° is hot.

As an elementary teacher in the US, it's so much easier to teach the metric system.

When Australia changed to metric, once a unit had been changed the old unit could not be used. There were no signs giving prices for kilograms or pounds, it was kilograms only. All speedos and odometers in cars were in kilometres, having both scales was not permitted. When the temperature changed to Celsius, a lot of people complained but a simple conversion made it more accessible until people got used to it. The simple conversion? Double it and add 30. It overestimates at higher temperatures, for instance 30C is 86F not 90F as the double-it method gives you, but it is close enough to decide on outdoor activities and what to wear.

Bravo, Luke! I learned metrics living abroad, but I've never heard this rhyme. Thank you. Well done!

The way I intuit Imperial is as follows: One storey of an apartment block is 3m, which is equivalent to 10 feet. I'm 1.8m, or just under 6 feet (5' 11' actually). A meter is roughly 3 feet. I have to run 2.4km for my fitness test, which is 1.5 miles. So 1.6km = 1 mile And of course, 6 inches roughly = 15cm. 😉

Living in Arizona every time you mentioned Phoenix you made me laugh! Just remember that we have a dry heat so that 30 degrees is not that bad. 😅😂

I will always sew, cook and watch my weight in Imperial units. But I am working on learning those Celsius temperatures.

Btw, about the superiority of the metric system I always use a very simple example : - in metric : a room measuring 2,52 meters by 3,87 meters : to get the area, one multiplication and it's done - in imperial : a room measuring 3'8'' by 4'11" : first you have to convert into inches twice : 3 X 12 + 8 and 4 X 12 + 11. That's 4 operations. Then you multiply. 5 operations. The you divide by 144 to have the square feet, the you multiply again by 144 the integer part, then you substract this last number from the result in square inches and then only you have the result in square feet and square inches. 8 opérations...

@lesfreresdelaquote1176

Жыл бұрын

8 opérations... Le correcteur automatique n'a pas voulu passer à l'anglais... 😂 Il a gardé l'assent, té...

@CyrilleParis

Жыл бұрын

@@lesfreresdelaquote1176 lol oui! en fait le correcteur automatique est réglé sur le français donc, je n'ai pas fais attention, mais il y a des chance que ce soit le seul mot qui n'ai pas été surligné!

@lesfreresdelaquote1176

Жыл бұрын

​@@CyrilleParis Sinon, c'est vrai que votre exemple est tout à fait probant. Par sûr pour autant que vous puissiez percer cette tranquille certitude qu'ont certains Américains (je dis bien certains) de tout faire mieux que tout le monde et d'être la référence suprême en science et technique.

@CyrilleParis

Жыл бұрын

@@lesfreresdelaquote1176 Avec ceux qui regardent cette chaine, je pense convaincre des convaincus... pour le reste, c'est plus nuancé.

I'm on the US side of the Canadian border, so was used to hearing daily temps in both Fahrenheit and Celsius. It was weird when I moved far from the border for a time and only heard Fahrenheit. Nowadays with so many radio stations using syndicated programming, if they bother to give a weather report at all it'll be only in Fahrenheit (even here on the border). That's so strange.

Switched my phone setting to Celsius about a year ago. Good vid:)

@polyMATHY_Luke

Жыл бұрын

Well done!

When I taught chemistry to nursing students at a community college my first two classes were on the metric system. After a port call in Australia one of my sailors got a letter from a friend he had made in Australia. He told me he thought it strange that the letter mentioned how they had gone to the beach for Boxing Day when it was only 36° . I explained to him that that was about human body temperature in Australia.