Correction: An eagle-eyed viewer pointed out a small error when we described the old definition of a kilogram. It should have been "the weight of water equal to the cube of a tenth part of the metre"…not "the hundredth part." Otherwise, you'd be getting a gram, not a kilogram. Good catch…and a good argument for the metric system!

@sivasankar2189

5 жыл бұрын

Isn't that a thousandth part of a cubic metre? Since 1 cubic metre equals 1000 litres of pure water. 1 litre of pure water makes 1 kilogram by the older definition.

@Abdsul99923

5 жыл бұрын

U can edit videos now

@zzewe1694

5 жыл бұрын

Meter*

@the_rising_tiger8164

5 жыл бұрын

What a nerd. (Good on you tho)

@harshjoshi5861

5 жыл бұрын

why didn't you guy take the temperature of water into account? water had to be at 4 degrees C. Please provide the right fact you had two chances

It's also worth mentioning that the US Pound is defined by the Kilogram via NIST.

@lulube11e111

5 жыл бұрын

Miles are also defined by meters

@AliceTheSpider

5 жыл бұрын

@@lulube11e111 Well al Imperial system units defined using Metric system units which currently after kg, all based on fundamentals of nature and completely independent from time, material and place.

@0criticalHit

5 жыл бұрын

Yeah, but the problem with the imperial system is working with Newtons, Joules, Watts etc, these units are based on the metric system but are still used in the imperial

@cristobalgarces1675

5 жыл бұрын

@@AliceTheSpider It is still dependent on time as Plancks constant is. Otherwise, the new kilogram wouldn't have been redefined as it is.

@AliceTheSpider

5 жыл бұрын

@@cristobalgarces1675 plank constantly doesn't have a time dependency, and new kilogram is the one defined by that which is what I am referring to

but steel is heavier than feathers

@pinkdoe1725

5 жыл бұрын

umami umami proof

@lmao.3661

5 жыл бұрын

We truly are the smartest nation on earth

@fabianmac3552

5 жыл бұрын

But they're both a kilogramme

@cadagerardo.8794

5 жыл бұрын

kilodamme

@alexc7857

5 жыл бұрын

@@AloneInTheVoid yes sir.

Dammit now I have to re-weigh all these kilos of cocaine

@slaughtergang518

5 жыл бұрын

el chapo

@hatrannguyenphuong9033

5 жыл бұрын

Rr

@PashikTT

5 жыл бұрын

Do it quicker. If they find out you hide 1 eyelash of cocaine less, you will be in trouble

we all agree on a unit of measurement, just america dont......

@MindfulProgramming

5 жыл бұрын

#thanksobama

@tajwarba

5 жыл бұрын

@@MindfulProgramming uhh that's a joke right? The imperial system has been in place for ages. Oof I can't tell with comments anymore

@MindfulProgramming

5 жыл бұрын

@@tajwarba 😂 ye

@oppo24068

5 жыл бұрын

and Liberia and Burma

@leonmozambique533

5 жыл бұрын

Bryce Bacon imperial system is defined by the metric system

Is no one going to talk about how that guy just tattooed Planck's constant on his arm?

@techmountain9180

5 жыл бұрын

worth it.

@nachidalvi

5 жыл бұрын

That's one of the coolest tattoos I have seen. Plus you have the constant for exams

@anastasiabeverlyhills8383

5 жыл бұрын

Ikr that was really something 😂

@thirty-three7546

5 жыл бұрын

and the guy who plucked an eyelash for the video

@superoscar1759

5 жыл бұрын

The team of people that made this change all got the same tattoo to celebrate the achievement

Is it just me or does anyone else want that card from 2:14 (a really nice person in the comments remade it so go have a look)

@grennysohail

5 жыл бұрын

I was just about to ask if anyone know where to find that card?

@carterchapman8540

5 жыл бұрын

Can't find it anywhere

@tendies

5 жыл бұрын

Yes please

@fabianmac3552

5 жыл бұрын

I was just about to write this

@sumeetrox2479

5 жыл бұрын

i was about to ask the same.

"we don't really agree" ... Only the US*, basically all the world uses metric.

@andriod8014

5 жыл бұрын

Mozart Liessi we are special and leaders. ;)

@zack9777

5 жыл бұрын

Andriod Khan Which ironically K20 is used for pounds

@lynn.chaaaa

5 жыл бұрын

@@andriod8014 yeah yeah yeah

@samy6833

5 жыл бұрын

You and Myanmar..

@jmiquelmb

5 жыл бұрын

@@andriod8014 Leaders in overcomplicated systems

_If the US switched over to the metric system, there would be _*_mass confusion_*

@xandradice

5 жыл бұрын

Lol good one

@lumschente

5 жыл бұрын

The us switched to the metric system, but allowed the usage of the old system. en.m.wikipedia.org/wiki/Metric_Conversion_Act

@Whack0

5 жыл бұрын

+Nils Matt Oh my god what a shocking revelation! No! I can’t go on in a world where we don’t use the customary system! I have to kill myself now!

@akris4359

5 жыл бұрын

There is mass confusing because the US uses the metric system

@FalconFlurry

5 жыл бұрын

should've done it back when it was easy

Please U.S. just get into the metric system. You will solve a lot of problems.

@Om-xt1wx

5 жыл бұрын

It’s incredibly expensive, most people here prefer the metric system too. It’s just the fact that most of our laws and infrastructure are based on the customary system.

@like.clarkwork

5 жыл бұрын

I wish America would just adjust to the metric system. It would solve a lot of problems for me so I know that the unit of measurement won’t change when I go to another country

@kellangaming1108

5 жыл бұрын

Clarence Royandoyan Yes, but there are more people in America than 1 person, more than you.

@lancelindlelee7256

5 жыл бұрын

I've heard stories of a plane nearly crashing because the same number was kept but in different units (for fuel). Another one I'm less sure of was a shuttle exploding due to different measures again.

@Chris-hz8lj

5 жыл бұрын

@@lancelindlelee7256 There was an orbiter that exploded, wasting 125 million USD. It was due to two teams using different units for their calculations.

The Kilogram isn't changing, it just got defined!

@davidkern7636

5 жыл бұрын

So the definition changed...

@gamingputer

5 жыл бұрын

redefined*

I don't know why but i am so touched watching all the scientist from all nations agreed about the definition and applaud 😭

I want to ask where could I get the card for the new international system of units

@ghostnoodle9721

5 жыл бұрын

Idk all I can find is different aspect ratios of business cards. Why is that such a thing?

@jacky_mo

5 жыл бұрын

You could just get a screenshot

@bryan.w.t

5 жыл бұрын

Can you make the measurement from the card?

@thertist1225

5 жыл бұрын

Google it ?

@davidatanasovski5971

5 жыл бұрын

I don't know but I can tell you where you can't get it. From those slow americans.

5:06 😨😨😨 OH GOD WHY.

@pranavaramanbms1609

5 жыл бұрын

Probably due to radioactive decay 🤔

@jesslim6908

5 жыл бұрын

@@pranavaramanbms1609 lmaoo she was asking why they showed the clip of an eyelash being picked out, not why the prototype kilogram lost mass

@gagarensesess

5 жыл бұрын

In the name of Science 😥

@flyingstapler1241

5 жыл бұрын

You never done that in front of the mirror ?

How'd you get that SI unit card? Where can i buy it?

@swaree

5 жыл бұрын

I came to the comments just for this question

@maerski5171

5 жыл бұрын

yo i know right that was pretty cool but i think it was only given to those who attended the event

@Aaron-jj9no

5 жыл бұрын

imgur.com/gallery/FAUdZg5 i made it in photoshop

@Guesswhokk

5 жыл бұрын

@@Aaron-jj9no thanks

I was just about to ask you for this video. Because this is THE most important event of 2018, touching everything we do and also touching everyone in this planet in one way or the other. Thanks! And well done!

There's also the most round object in the world which was also used to calculate plank's constant.

5 жыл бұрын

It's Planck

@dakshbadal7522

4 жыл бұрын

It wasn't used to calculate the value of Planck's constant, it was to count the number of silicon 28 atoms it takes to be exactly 1 kilogram it was to redefine the Avagadro's number. Please edit the comment its frustrating.

Am I the only one who had to laugh when Herr Schlamminger said that the US got Number 4 and 20?

@azmanabdula

5 жыл бұрын

Nice

@jakobrmh

5 жыл бұрын

@@azmanabdula Nice

@zakariahgougam3154

5 жыл бұрын

Yes, yes you are

@sebo0855

5 жыл бұрын

... And a number 6 with extra dip.

@azmanabdula

5 жыл бұрын

@@jakobrmh Do you think anyone gets it? (420) What time is it?

Are British people aware that stones and miles are not part of the metric system? Because I think there's a confusion here. They dont use it for everything.

@curiousitykilledthecat9933

5 жыл бұрын

Yes we are - also we don’t really use stones, the only non metric units we use are miles and feet (and pints for beer 🍺 😉)

@Rin-ef2tp

5 жыл бұрын

I was thinking that. The UK guy is high if he thinks we use metric for everything. The rest of us know we don’t 😂

@crystaljeffbabeeey

5 жыл бұрын

Yeah, e.g using miles instead of kilometres.

@rebeccaanderson5626

3 жыл бұрын

@@Rin-ef2tp why do you cling onto a stupid and unreliable unit

@Rin-ef2tp

3 жыл бұрын

@@rebeccaanderson5626 I don’t know 🤷🏽‍♀️ why do Americans? I’m a scientist so at work I strictly use metric but I buy milk or beer in pints, use miles when I’m driving, I measure my height in ft and inches and weigh myself in stones because if I want to tell my friend how much I weigh they won’t have any idea what I mean if I tell them in Kilos

Are you sad to see the old kilogram go?

@tanny9533

5 жыл бұрын

Happy to see that we go further towards perfection good to see the progress we are making

@nabeelkhaan

5 жыл бұрын

Ver.....itasium???

@autumnisbetterthanspring

5 жыл бұрын

no..... i mean why?

@mahmoodalam6980

5 жыл бұрын

Yep

@dosbrostacozzinc.6856

5 жыл бұрын

@Till Schwarz By that logic wouldn't that make you and anyone else that has that idea just as ignorant? 😉

Ai hev a queshtion for you: wich is hevier: a kellogramm of steel or a kellogramme of feders? Straight from the dead MEME graveyard

@brennonhunt5465

5 жыл бұрын

A kellogram of steel

@cianduffy2280

5 жыл бұрын

I mean the spelling hurts me more than the dead meme

@arfn1973

5 жыл бұрын

@@cianduffy2280 True.

@aliminhaj5840

5 жыл бұрын

Cian Duffy you do know it’s meant to Be like that?

@aliminhaj5840

5 жыл бұрын

1234 5 kzread.info/dash/bejne/p3xkysukk9rQeaQ.html

Wishing everyone a beautiful and safe holiday. Merry christmas

@DEATH_TO_TYRANTS

5 жыл бұрын

Thanks. Merry Xmas to you too!

@nemheen1139

5 жыл бұрын

wish back to u Merry christmas

@davidordonez457

5 жыл бұрын

Thankyou, merry xmas man

@at2t1

5 жыл бұрын

I don't celebrate it...

@davidordonez457

5 жыл бұрын

@@at2t1 Thog don't care

I’m learning some new things in your channel. Thank you!

I bet that imperial system was made with random number generator

@jmiquelmb

5 жыл бұрын

The seemingly random numbers come from the need to redefining the SI units. One tenth of a million of a meridian is nice and pretty. But when they decided to use light speed for more precision (since it's a universal constant), the conversion had to adopt those numbers.

5 жыл бұрын

@@jmiquelmb It's not a universal constant. The speed of light isn't a constant at all. They showed that in 2015 already.

@jmiquelmb

5 жыл бұрын

@ It is in vacuum.

@FalconFlurry

5 жыл бұрын

The mile was defined as 8 furlongs. A furlong was the length of a furrow a team of oxen could plow in a day. A gallon is of Roman origin and it meant "a pailful", as in, 'grab a pail full of water' A foot was the size of the Kings foot a pound came from the word "libra" (lb) and was equal to 7000 grains

5:46 That’s the most geekiest tattoo I’ll ever see.

But a kilogramme of steel is hævier than fæthers

@nicholas_zakem

5 жыл бұрын

No but a kilogramme is a kilogramme

@samrofik1764

5 жыл бұрын

Nicholas Zakem no, a kilogram of steel is heavier because steel is heavier than feathers....🤦‍♂️

@t4yyib_iq

5 жыл бұрын

@@samrofik1764 what?

@frederikvandrup6081

5 жыл бұрын

IceCube Gaming i see you have not been taught in the way of the kellogram

@t4yyib_iq

5 жыл бұрын

@@frederikvandrup6081 teach me your ways senpai

Amaracan : omg she's 150 pounds😱 Brit ish : no you bollocks, i'm just 68 kilograms

@TheBurningWarrior

5 жыл бұрын

Actually, the British would typically say she's 10 stone, 10. (a stone is 14 pounds, and the unlabeled unit to follow is the leftover 10 pounds.) That's one of several contexts where the metric system was unable to displace the imperial system in the UK. (Their highway signage often list distances in furlongs and miles too.)

@okokokok5269

4 жыл бұрын

@@TheBurningWarrior never seen this bro in uk i only saw kilogram

WuT's HeViAh? A KeLoGrUm Of StEeL, Or A KeLoGrUm Of FeThOs?

Whats heavier a kilogram of steel or a kilogram of feathers?

The verge science is the best science channel!

Very well made Video. Thank you!

It's time for the US to adopt the Metric System.

@Opharg

5 жыл бұрын

They already have done so. Mile and pound are simple conversions of meter and kilogram

@sriharihs2554

5 жыл бұрын

@@Opharg but why?? They could have used the same kg and meter right??

@Om-xt1wx

5 жыл бұрын

sriHARI HS no one knows why, the people that made it like this are long gone, and changing it is incredibly expensive.

@wickedleeloopy2115

5 жыл бұрын

If Huawei makes a metric chip set , do you think America would accept it. 🤣

@matthewroop1987

5 жыл бұрын

In America we are taught both but we only use imperial out of school

How will this effect the drug trade?

@pattrickmerete

5 жыл бұрын

@Charlie K he's high on drugs, that's why he mispelled it.

@mycelia_ow

5 жыл бұрын

@@pattrickmerete, yeah he's high on sugar

@wickedleeloopy2115

5 жыл бұрын

This affect has had the wrong effect ..yes. 😒 yes...I see

@Vitobaretta

5 жыл бұрын

well, 1 kg cocain is still 1 kg cocain, if not, you still lose your head.

@johncole4882

5 жыл бұрын

Extension Flexxin more precise bag of coke

Great video guys.. keep it up

I have seen the “ French Revolution” standard kilogram in a museum. It was presented alongside the standard metre which had the year “1799” inscribed on it.

How can you claim that everybody in the world can now access the exact kilo, if you need a super expensive, extremely intricate machine to measure Planck's constant?

@pixelknight163

5 жыл бұрын

They probably wrote down the data results somewhere on some document and published it world wide. Internet included. So there's no need to make that super expensive, extremely intricate machine yourself. It's common sense really. I mean, if everyone had to make that machine themselves. They wouldn't have voted for the change. How did you come to that conclusion?

@howardbaxter2514

5 жыл бұрын

Planck’s constant was also defined to an exact value. Same with the mole, the speed of light, the meter, and the Ampere.

Where did that *Roundest object: a silicon ball* go??

Love this series. Love it

I thought that kilogram is the unit to measure masses not weights.

@itstheslime6639

5 жыл бұрын

Its the same thing for all practical purposes

@DarkAngelEU

5 жыл бұрын

Mass is the physical amount of "stuff" an object contains, expressed in mol. Not entirely the same thing.

@ForaxX

5 жыл бұрын

@@DarkAngelEU you're wrong.

@erical1808

5 жыл бұрын

@@DarkAngelEU moles are a counting unit used to count entities,. not exactly mass.

5 жыл бұрын

You thought wrong.

Congrats to all US customary units fans because now the pound (defined as a part of a kilo) is more precise than ever!

Fun Fact: The US actually uses the kilogram and converts it to define the pound.

@howardbaxter2514

5 жыл бұрын

Same with inches. Exactly 2.54 cm in an inch

@lumschente

5 жыл бұрын

Fun fact number two. The us officially switched to the metric system. en.m.wikipedia.org/wiki/Metric_Conversion_Act

@FalconFlurry

5 жыл бұрын

@@lumschente Not technically. That act just allowed the metric system to be used, it didn't actually force anyone to convert. Unless at a bare minimum it becomes mandatory that anything government issued or legally binding be in metric only, it can't really be called a conversion

Wow using kibble balance finally recognizing real science on this channel. proud of y'all

How to get that si units card?

thanks for not mentioning how it is actually precisely defined (not just "in terms of planck's constant") you had one job...

@kennethkho7165

Жыл бұрын

2:12

"We don't agree on a unit of measurement yet" aka "the US doesn't want to drop the archaic english system yet like the rest of the world did when we decided to go metric "

@thatoneguy6139

5 жыл бұрын

Well actually the US isn’t the only county that doesn’t use the metric system

@okokokok5269

4 жыл бұрын

@@thatoneguy6139 now it is most also liberia integrated it now so youre the last one i would say

@rebeccaanderson5626

3 жыл бұрын

@@thatoneguy6139 YOU ARE THE LAST ONE YOU PATHETIC ... SO much ego can not change the units to something that is scientifically defined

- How do you say flamingo in german? - Schlammingo.

Where can I get that card

@dryatish2102

5 жыл бұрын

Take a screenshot

@shrivatsakulkarni9282

5 жыл бұрын

But the official one

@lynn.chaaaa

5 жыл бұрын

@@shrivatsakulkarni9282 make it yourself, using indesign

Veritasium did it First hehe

@jonasp.1830

5 жыл бұрын

Still a nice Video

@brauss878

5 жыл бұрын

The more spreading this kind of news, the better! Besides coming with the creative idea and more structured video takes time.

@ooooneeee

5 жыл бұрын

This is about science education, not about who did it first.

@JarrodBaniqued

5 жыл бұрын

I’m surprised they also didn’t mention one of the world’s roundest objects being used to check the Kibble balance work.

@micheltenvoorde

5 жыл бұрын

I prefer this one actually.

Where can we buy that card with all the Units ? #NerdAlert

What a wonderful explainer!

that si units card was nice

2:14 How do you get that?

@VergeScience

5 жыл бұрын

An Otaku James received this card at the ceremony!

@muddywisconsin

5 жыл бұрын

Verge Science is there anywhere we can buy it from?

@prairiepanda

5 жыл бұрын

@@winstonwei9694 used Google, did not find. Better solution?

@cadagerardo.8794

5 жыл бұрын

@@winstonwei9694 bragging rights for doofus

US guy:"we have not agreed on an exact unit of measurement yet" Scientific Official Units and literally 99% of the world: am I a joke to you?

Which editing software do you use?

are those hexagon weights with vegetable vendors updated yet?

So, what is the defination of Kilogram now?

@bluzone2087

5 жыл бұрын

Planck's constant

Where can I get the card with SI units??

@brien1254

5 жыл бұрын

I'd also like to know

@jacky_mo

5 жыл бұрын

You could just take a screenshot

@StefanImkeVollebergHendrikx

5 жыл бұрын

@Harold Potsdamer thanks, I found that one as well, but not the latest version shown in the video.

@helgefan8994

5 жыл бұрын

Given this video and these cards, I bet most people still don't understand how 1 kg is actually defined. 1 kg = ?

@david.ricardo

5 жыл бұрын

I NEED them

Great work

When you were trying to read whats written on the card but its too shaky..

America got the 420 Weights lmfao! 3:20

@finbira

5 жыл бұрын

America and counting! lol

Meanwhile in US: "Imperial ftw lolbbq XD"

@howardbaxter2514

5 жыл бұрын

You do realize we learn both and imperial units are based on the metric system, right?

Humanities shine the brightest among scientists like these. It's amazing.

Why am I just learning this now? I thought it was a new video but it is a year old. Not happy.

The kilogram is dead, long live the kilogram.

0:45 Shouldn't it be the tenth part of the meter?

@bamberghh1691

5 жыл бұрын

Yes, 1 m^3 equals 1000 L

@finbira

5 жыл бұрын

There is a logical word for 1/10 of a meter, you learn it by going to a good school.

I personally haven't had a need to learn metric yet. For the few times I'm presented with something only listed in metric, I just ask my phone to convert the metric unit to something useful. Usually that's only when I'm traveling outside the US, but even then I often see friendly pounds, feet or gallons in small print next to metric.

Veritasium beat you to it, but surprisingly, this was still very informative. It provided a different POV and also relevant information such as the importance of the ideology for all scientists participating in the project. So yeah, rock on, thank you very much!

Sooo .... now if you want to explain 5 year olds in first grade what a kilogram is , you first have to teach them about the plank’s constant ??

@aleksandersuur9475

5 жыл бұрын

No more than you teach them speed of light in preparation of learning the metre or function of atomic clocks to understand seconds.

@afifbrian2540

5 жыл бұрын

wait, since when did we teach the definition of International System of Units to first grader?

@SteveOnlin

5 жыл бұрын

they teach it in the first year of middle school ya bafoon

@FalconFlurry

5 жыл бұрын

correct... or give them a 1kg bag of flour and tell them that's how heavy it is

3:27 🍀🍀😎🚬 yeah babey

@willa8720

5 жыл бұрын

420 BLAZE IT

@GauthamKrishna9991

5 жыл бұрын

No it's not... It's just denser...

5:34 that picture is in my textbook

That is actually so damn cool, to have the weights and measures tied to natural phenomena rather than physical objects. That's actually mind blowing!

@jekubfimbulwing5370

5 жыл бұрын

Bugler55 Actually no, only the second is derived from the Caesium Atom. In this case the "hyperfine transition frequency caesium atom" So it's a natural phenomena related to the ceasium atom rather than the atom itself. all the rest are based off of other natural phenomena as can be seen in the new system of units as shown here imgur.com/gallery/FAUdZg5

Got question for ya. Which one is heavier. A kilogram in 2019 or a kilogram in 2017.

@mimizdani8194

5 жыл бұрын

2019

@raphaellecoeur5738

5 жыл бұрын

but steel is heavier than feathers

@dwinhoval

5 жыл бұрын

Mimiz dani but they both a kilogram.

@samy6833

5 жыл бұрын

@The Niggalodeon Its the same.. well technically 2019 is 50 micro grams heavier..

@sabotage9926

5 жыл бұрын

@@raphaellecoeur5738 what? steel is heavier than feathers... I don't get it

This just in: recipes can't exist without a kilogram

@saltysoysauce954

5 жыл бұрын

Modern society would crumble without it!

where can i get a card like that with the measurements its kinda cool

6:08 for a moment there I thought I saw an old version of Eddie Redmayne

The video is a little late this happened november 16th

I'm really ready to see America adopt the metric system. I feel like it's going to be a gradual process

@randolphcarlisle2976

5 жыл бұрын

I don't think it's going to be a process at all.

@vorzel_1106

5 жыл бұрын

It's going to take many many years even the next couple of generations are unlikely to see it since it is a building block the country is based especially after the industrial revolution which means it would take a painfully large amount of money to change.

@evilotto9200

5 жыл бұрын

40 years ago when the U.S. attempted a move to metric, it was fought by parents unwilling to learn conversions. Today, they carry cellphones that can do the maths conveniently enough. It would be fought by nationalisit's fear of globalism now. Perhaps next administration.

@vorzel_1106

5 жыл бұрын

@@evilotto9200 it's never gonna happen even if we wanted to it's too expensive if it was gonna happen it had to happen during the industrial revolution.

@maon7565

5 жыл бұрын

Never gonna happen

Where do I get one of those cards from?

5:29 KZread: You're demonetized + age restricted.

Fantatisc video!!!

So basically the plank cte is the new kilogram?

@lussine9086

5 жыл бұрын

@Astir01 that's quite close , so they're just made the kilograms more if you say acceptable among all the different measuring systems.

@CharDhue

5 жыл бұрын

But what basis we measure those torque and power?

@kazedcat

5 жыл бұрын

@@CharDhue you have to go back to electron charge. Electron charge defines current which define voltage. Voltage and current define power and power defines torque. Meter and second is also involve. To define voltage you need a current and distance. To define current you need charge and time. Time is defined by atomic vibration and distance is define by speed of light constant.

@helgefan8994

5 жыл бұрын

Astir01's answer is very wrong! For starters, [J*s] is not the unit of torque, [N*m] is. Also, how long is that beam supposed to be? But even with a unit like [N * m] in there, you can't just assume that it's necessarily about torque, especially when talking about fundamental constants. Instead, take a look at the _definitions_ (not measurements) of various physical constants described on this card (the link is from one of the other comments): pbs.twimg.com/media/DsOFIXxXoAEXZJN.jpg For the definition of [kg], we need to consider Planck's constant h = 6.62607015 * 10^-34 [J * s], the speed of light c = 299792458 [m / s] and the transition frequency of a Caesium atom nuCs = 9192631779 [Hz] Now we substitue the abbreviated units by proper ones [J * s] = [kg * m^2 / s] and [Hz] = [1 / s]. Now we can construct a quantity that has only units of mass by cancelling all other units in Planck's constant: nuCs * h / c^2 = 9192631779 * 6.62607015 * 10^-34 / 299792458^2 [kg] which is equivalent to 1 [kg] = nuCs * h / c^2 * 299792458^2 / (9192631779 * 6.62607015 * 10^-34). So any alien civilization just needs to make machines to determine these constants in whatever alien units they like, and they can convert it to our units with these definitions. The same can be done for the other SI units as well.

Where can I get that shown card?

2:54 splash. -Maysin Pure

No.Not really.At lest we have a constant that we can be sure that won't change over time. Also, Merry christmas!

@Savatore83

5 жыл бұрын

both system should stay in my opinion.

@eldiablo7455

5 жыл бұрын

Merry Christmas

5:29 i see BOB i react LOB ;)

Where can we get that card at 2:14 ?

Hasn't it been a while already?

Now we can no longer hope our scale is wrong... Because one eyelash is sometimes a big achivement (sarcasm sign). 😎

@satvikbhargava2084

5 жыл бұрын

😁

@ShivWad

5 жыл бұрын

Use /s

@FlamingBasketballClub

5 жыл бұрын

LOL

@david.ricardo

5 жыл бұрын

I see you every time I g o to the comments lol

@bryan.w.t

5 жыл бұрын

In the science world, it is

God FINALLY

So is the kilogram literally the same mass as it was before but tied to something constant. Or did it like become a bit smaller or a bit bigger

How many plank masses is the kilogram under the new definition?

Is this channel called Ver....itasium?

Goodbye Le Grande K, you will not be missed.

@avimakkar

5 жыл бұрын

well it will still stay around since it has been measured and documented for so long Scientists are gonna continue measure it and it's siblings for years to come for research. Long live Le Grande K.

That thumbnail is on point

Metric is so much easier to use since it's based on 10. We in the USA think it's sooo hard to have to use it because we are not raised on it and the FPS (Foot-Pound-Second) system is so very ingrained in us. If we had been raised in the metric system and someone tried to get us to convert to the FPS system, we would think they were crazy. And we would be right. It's an ad-hoc system based on arbitrary standards. The one thing that would have been nice though is if the founder(s) of the metric system standards had made the meter to the same standard as the yard. They could have. All they would have had to do is adjust the millimeter slightly to make it all work out. That, at least, would have made the conversion of distance much easier to do in your head. But they didn't consult me, so here we are.

What's heavier? a ｋ ｉ ｌ ｏ ｇ ｒ ａ ｍ ｍ ｅ of steel or a ｋ ｉ ｌ ｏ ｇ ｒ ａ ｍ ｍ ｅ of feathers?

Let me see. (takes the kilogram) Alas, poor Kilogram! I knew him, Horatio, a mass of finite jest, of most excellent fancy. He hath weighed me on his balance a thousand times, and now, how abhorred in my imagination it is!

@mowvu5380

5 жыл бұрын

yayyy olde weights fun my fave😋😋

@jmiquelmb

5 жыл бұрын

This is from Hamlet, but not sure which fragment. Is it from when he grabs a human skull?

Edit your video with attention to sound levels, please. Subtitles would be a help.

The visit to the prototype standard kilogramme was like Mecca for metrologist. I would often hear the tales of wild parties they had there lol.

but they're both a kilogram...

@allyspeedruns

5 жыл бұрын

Niggachu no. They deviate from the exact definition of a kiliogram which is 1.000000... kg, whereas a physical constant will be like 0.999999...0 kg, due to decay. Everything eventually decays radioactively, as well as react with the environment and hence changes the mass