Have You Ever Used An Analemma to Tell Time?

@glenncurry3041

4 ай бұрын

Every year Summer Solstice and the day of the earliest sunrise being different.

@skavengerr

4 ай бұрын

We want a video about the jellyfish UFO video. We need the science to explain how a jellyfish that big left an Aquarium and started flying around American bases randomly! Lol

@michaelccopelandsr7120

4 ай бұрын

Like Chuck said, "it's completely new."

@nunya7984

4 ай бұрын

Sounds to much of a Dilemma

@pylang3803

4 ай бұрын

Not familiar with an Analemma, but I know her cousin, which is a Dilemma.

Animation of chuck’s face as the Sun😂😂

I did NOT expect Chuck being teletubbie'd into the sun like that: it got a good laugh outta me

I wish I had these conversations at school when I was little. 33yo now and I love learning with these two guys. 🥰

@gomezz357

4 ай бұрын

School was a program used to keep us dumb

@Songoftiffany

Ай бұрын

Me too ! And I’m 60 . I have definitely learned more from these 2 men than I did in school.

Next time I'm five minutes late, I'm going to say, "You know, the Sun itself is up to 15 minutes late, some days."

I would go out and check my sundial, but it's covered with a couple feet of snow.

@Taylor___

4 ай бұрын

Ha sames. UK?

@janerkenbrack3373

4 ай бұрын

@@Taylor___ Michigan USA

@JoeVanGogh

4 ай бұрын

​​@@janerkenbrack3373 3 hours later, just now back in from shoveling my driveway here in WV

@janerkenbrack3373

4 ай бұрын

@@JoeVanGogh Ha ha. I know what you mean. I shoveled in shifts. I haven't moved the car in five days, and the snow is above my knees.

@loganmiller4919

4 ай бұрын

@@janerkenbrack3373oh god, oh that’s horrible 😭😭 I’m in central Illinois (it’s important to seperate Illinois into northern, central, and southern), southern Illinois is just mainly a really dry cold rn and northern Illinois is taking the brunt of the snow… here we have both snow and dry cold 🙃

I never knew why they put that figure 8 on a globe. And I'm old! But I never asked either....I love these "explainers"!

@buildindian8169

4 ай бұрын

No one told us….I mean were these things a secret

@WhiteyMcCrackerson

4 ай бұрын

You’re not that old that you used a sundial lmao

@roberth721

4 ай бұрын

​@@buildindian8169 it would probably have been known to early navigators, being important to figuring where they were. (Just guessing)

I can’t get me enough of these guys. Neil and Chuck is all I need

@mshark2205

4 ай бұрын

I don’t know who and how came up with the idea of pairing Neil and Chuck, but it was brilliant

@seanknight7135

4 ай бұрын

whats so funny they both even out neil is super smart but funny too chuck is super funny and smart

“Pagans know how to party!” Gotta love Chuck! 😂

@bcase5328

4 ай бұрын

Most cultures have a winter celebration that traditionally uses light in the activities.

Thank you both for the content!!!!! I was raised by my great-grandparents, in El Salvador they insisted so much on having a night under the stars or knowing the time just by looking at the sun without digital resources. Without a doubt, the best childhood. Thank you very much for reviving my memories. As always, a big hug. I appreciate your content a lot. Start talk 24/7/52 ❤

Watching from Scotland knowing this all too well, our winter at the moment is giving just over 7hrs of daylight today

@toby9999

4 ай бұрын

Watching from Australia where it's mid summer and where the sun is pretty hight at noon.

@fishypaw

4 ай бұрын

Also Scottish, AND my birthday is the shortest day of the year. :/

I know you will probably never read this, but thank you. you inspire us all to love science. I have literally cried from epiphanies I've had watching your videos on here, TikTok and anywhere else I can find your videos. You are what Bill Nye used to be, but on a whole other level. I'm trying to say, you are amazing, my whole family loves you, and you've made the world and science make sense for me.

I love the not only science, but also a dose of history teaching right there ❤ love it! thank you as always!

Chuck as the sun... is hilarious😂🤣🤣👏👏

These two are the BEST! I just wish all physics teachers around the world would watch this and other videos 🎉🎉🎉🎉🎉🎉🎉

I would love to see Neil explain why Neptune's color had to be updated and why it was wrong for so long.

@DemPilafian

4 ай бұрын

*Noooooooo!* I like the old color better. Let's not disturb it.

@bike6626

4 ай бұрын

@@DemPilafian I did too, but for the sake of accuracy, it had to be updated.

@TheBiggreenpig

4 ай бұрын

It's a shocker. We had a nice blue planet, now it is dusty white, boooring.

@SlickTim9905

4 ай бұрын

there was dirt on the lens. someone cleaned it.

@autopilot3176

4 ай бұрын

It was updated for the same reason that made Michael Jackson get new ID and drivers license when his face became white. All colors need to be current and up-to-date.

Even when you have general knowledge of this, you still bring further info to learn. Thanks. awesome as always!

In the movie Cast Away, Tom Hank's character keeps a calendar in his cave where a bit of light peaks through a hole. That was the first time I realized it, or it finally clicked, that the path created the figure eight shape, and I'm 42 years old.

Excellent discussion Neil! It's also interesting to note that Analemmas viewed from different Earth latitudes have slightly different shapes, as do analemmas created at different times of the day. Analemmas on the other planets have different shapes entirely! 👍👍

Of course if you really want to use the shadow of the sun to get the correct time, you also need to consider your longitude on the earth. For example, the Pacific Time Zone here in the US on the west coast is "nominally" from W 120 degrees to W 135 degrees. That's 15 degrees, or one whole hour difference from one side of a time zone to the other. So, best case, for the Sun to be directly overhead at noon (Standard time), you'd have to be at exactly W 120 degrees. Since the Earth rotates at about 15 degrees per hour, if you're out at the North Oregon Coast, you're at about W 123 degrees, the sun will be overhead 3/15 of an hour, or 12 minutes later than at the nominal start of the Pacific time zone at W 120 degrees. So sunset, and there are some real beauties out over the Pacific Ocean, is also 12 minutes later. Plus or minus the Analemma effect.

@rzorrilla52

4 ай бұрын

I was about to comment about the fixed time offset due to longitude location but you did an eloquent explanation of it. Thanks.

@dasgibmekker768

4 ай бұрын

Thanks, Bob! 😎

This was one of the best episodes I've listened to and I've heard alot of episodes

Growing up a friend that moved to Texas for a few years before moving back to NY had a hard time estimating the time of day and blamed it on latitude and time zones.

You guys always make a perfect mixture of LEARN & FUN...

You missed the role that the tilt of the earth plays in the making of the analemma. In fact, its effect is bigger than that of the earth speeding up and slowing down in its orbit.

Kudos...to Neil & Chuck...... they're always on time, and on point(s)!

Neil and Chuck for 2024

CP Sun time!!😆😆!! I can't with you, Chuck!! 😆😆💕🖖

Educational Entertainment to the MAX ❗️ I LOVE StarTalk ❤

Chuck was on point for this one. Great episode. These two together are a national treasure.

I had always seen that figure 8 on the globe but didnt know what it was. Thanks

i would go to school more often if i had this kind of teaching!!!

About 13 years ago I made an analemma on my basement floor. Every day at noon, I marked where the corner of the window's shadow was.

Loved the Sun animation xD

Read up on the story yet new information is always welcome.

Thank you for the real history of Christmas. I always suspected that Jesus wasn't born on December 25, and that that day was chosen by the religious leaders for very specific reasons.

@MitzvosGolem1

4 ай бұрын

Original date was Jan 7 Greek orthodox church oldest.

@inevespace

4 ай бұрын

@@MitzvosGolem1 it is the same day but according Julian calendar. Gregorian and Julian calendars are shifted to each other because Julian is less "precise"

@MitzvosGolem1

4 ай бұрын

@@inevespace True ..Neither are precise also. The Mayan and Hebrew calendar are the most precise according to NASA and Max Plank institute. Thanks 👍

Yowwwwww....tht sun joke from chuck is hilarious 😂😂😂😂"#15 minutes...c'mon man....we good!!!"

One of my favorite subjects! There are great apps for solar time. We should all use it. Clock time is obsolete!!!

Loving everything that Mister Tyson does, he is awesome in capturing you attention and explaining things so that everybody can make sense of :) !

Science and fun with Neil and Chuck will always brighten my day thank you so much..

Greetings from The Faroe Islands. You guys are so amazing and entertaining. Gotta love science . Thank you so much.

Excellent video effects, It’s even better learning experience So much better than school

The variation in the length of the solar day is also affected by the tilt of the earth on its axis. The rate of change of the sun's longitude varies according to the amount of latitudinal movement, which is at a maximum at the equinoxes and zero at the solstices.

@tonyho1959

3 ай бұрын

Indeed! The interplay between these two factors results in the figure 8.

“Why the sun moves in a figure 8 across the sky” would be a perfect KZread short title!

@RAAGECAGE

4 ай бұрын

Which then links back to the video 😊

Interesting piece of knowledge. Thanks to each of you.

Thanks for covering my favorite topic!!!

Thank you guys for making me not feel so alone!!! Wicked cool!! That means awesome! lol! Love you guys!!!

Very fascinating, as usual. Thanks for the videos

I'm having that "Prestige" moment, where I go back and re-think everything that came before. I remember seeing that figure 8 loop on SO MANY maps, globes, and charts. NEVER KNEW WHAT IT WAS FOR OR WHERE IT CAME FROM!!! My brain is doing that 3rd-act twist memory replay for the span of 40 YEARS! Mind beyond blown

I luv this show, the humor/science explained easily, is priceless. Yet, no female or fitted t-shirts with StarTalk are available here. dang.

Thank you for a very interesting video = subscribed and liked😊

I heard that from the Analema you can learn the tilt of the axis of your planet plus your latitude (given that you know all the analemas in all the latitudes of such planet)

I love this. I've never watched Star Talk before. I built a 10" f/6 with a Paul McCoy mirror in 1992 and as of now am about 25 observing sessions from 1,000, a goal I have for 2024. My obsession as a telescope observer (Naturalist of the Night Sky, I like to say) has made me into an autodidact of sorts about many aspects of astronomy, physics and cosmology. One interesting thing that you guys could have added, perhaps to the detriment of your Christmas origin story, is that the date of earliest sunset (which varies around the earth) is, for example, around December 8, at 40 degrees N latitude. The date of latest sunrise seems to be around January 8th through 10th. Understanding this requires a somewhat more nuanced explanation of the basic principles of celestial mechanics you explain (you geniuses-- I hate you) while making fun of them, but would be worthwhile. Think about it. I like it.

The Analemma, always fascinating, I know an ancient one on the floor under Palazzo della regione porches, beside the Piazza del Duomo, in the città alta of Bergamo in Italy.

Brilliant as ever👍👍

CP time, Day Light Savings time, Analemma. Time really IS an illusion (IMHO). Thanks for a great video!

Great Content

Learning and laughing makes my day. 🤗

Who knew that the Sun is on CP Time! Chuck is insane 😅🤣😂

This was an absolute banger!

I know what CP time is because of Roy Wood, Jr.😂

Winter Solstice, the return, rebirth of the Sun becomes the Birth of the Son!

@findkip

4 ай бұрын

Almost like Gods Son?

@glenncurry3041

4 ай бұрын

@@findkip But based on factual reality for hundreds of thousands of years.

I remember seeing the analema on globes in grade school and wondering what it was for.

Wow! My first comment on my favorite show by my favourite scientists for 6 years now . The cartoon part made me type 😅 it totally blew me, . 🎉 More to that. MY GOD! Do I ever watch anything else but this channel? To who it was laid, We are a startup company in Nigeria soliciting for a grant. Thank you 😊

The equation of time is a staple for celestial navigators taking noon sights of the sun.

You know. When we were kids and checking the sun for a rough idea of the time we got it right. Rough idea being the operative description. It was good enough to tell us when to start making tracks for home. Its only civilisation that needs more exactness.

Great vidio, i tracked the sun shining through a spot on the window as it shined over my train layout and placed toothpicks on an angle to the sun and over a year i got a figure 8 to my surprise but found that the tight 8 at its top , that being most of jan. Neet .Thanks for the morning coffee...

Not first but earlier I’ve been. Have a good day y’all 😊

Wow I didn't know that about sun dials and the figure 8 , never to old or young to learn.

CP TIME practical application: I was a news photographer in Tallahassee FL. I covered events at FSU (Florida state univ) and FAMIU (FL A&M univ). In order to arrive. at events at FAMU at an appropriate time i needed to be sware and adjust for CP time. FAMIU announced when the doors opened so that people could arrive and socialize during set up etc. So they didn’t actually start the event late There was simply a cultural difference in the publicized starting time. Knowing that you could adjust your arrival accordingly.

at the equator and in the band around it enclosed by the point furthest from the equator that points at the sun directly, has three "solstices" one at the maximum height which is pretty much straight up, one at the lowest point in the north and one at the lowest point in the south, but secretly our solstices is the two low points at the equator and the highest point isn't a solstice at all because the sun just keeps going it only stops at the lowest points in the sky. so as you travel from the pole to the equator and to the other pole, the path of the sun at its maximum height per day across a year becomes a line that is at the pole a line from bellow the horizon to some maximum, then as you walk down towards the equator, the line climbs higher and and higher in the sky until you can see both a maximum and a minimum, that is the polar circle where you no longer have a period in winter where the sun never comes up, you keep on walking until you see the line reach directly above you, that is when you are walking into the band around the equator where the sun can be directly upwards from the ground, you keep walking until the middle of the line is directly above, that is the equator, and now if you keep walking you will see all the same things happen to the line in reverse as you travel towards the other pole. if you instead look at the sun at noon you will see this figure 8 shape, it will not be symmetrical necessarily at the equator, because the shape of it at the equator depends the orientation of the tilt relative to the eccentricity of the orbit. when the earth is in the position closest to the sun, the earth might be tilted in any which way and to any degree, the current shape is down to the correspondence between tilt and eccentricity, which changes over time, due to precession, and other phenomena of orbital mechanics, related to the sun, moon and other planets. think about this chuckie boy, the earth is not quite round, it has a bulge like a tidal bulge, but circularly symmetric instead of linear, this is because it rotates, that bulge is acted upon in the same way as the tidal bulge is by the moon and sun driving the moon away and stealing angular momentum from the earth into the earth moon , and earth sun system. but for this bulge it is being torqued in a different way, it is being torqued in a way that wants to place the equatorial buldge directly towards the sun, and so it is rotating and being torqued in many different ways, by many different bodies, and at the same time it has a non circular shape, and so it precesses around in a funny way, but very slowly, so the tilt, the orientation of the tilt, and the eccentricity off the earth changes slowly over time, that means that this analemma also changes over time, which is even cooler.

Right out the gate Chuck lmaooo ❤️

5:45 Neil says rotate but the animation displays the Earth revolving the Sun lol. Another awesome video anyway!

Here is the question i have always been wondering about: How would you tell time if you were on the tip of earth axis?🤔

I could see the ancients being like “come back sun!” and a few days later the sun started to “come back.”

I had to look up CT time, never heard of it. Now I know

the people living at the equator when looking at solstices :) chin up lad. some region around the equator has to such that the sun is sometimes straight above you, sometimes towards the north and sometimes towards the south, but only two lines not at the equator has only north or only south, but also straight above. strange stuff indeed. geometry is cool. its the tilt of the earth, it makes it so that there is a band some distance north and south from the equator, where each point can point at the sun at some point in the orbit but not always, the point on the earth that points directly at the sun, is always moving, drawing a line that over enough time covers the whole band around the equator. this band also changes with the precession of the earth when it changes its tilt over time, mechanics is cool.

In watchmaking this is called “equation of time” and some _really_ expensive watches will have the plus-minus minutes indicator for it. I’ve always wanted a watch with this complication!

Not until now... but that is something i am going to do 😊😊😊

This was a fun explainer❤😂❤

Now I know why my friend is always 15 min late I'm also a born again Pagan

Coral Castle, Ed Leedskalnin created a radial analemma sundial tracking time using the sun's position!

Great but you didn't touch the gnomen. Is there such a thing as plasma chemistry? Where plasmas of different types can be mixed to result in another product?

is this effect of an analemma also noticeable down on the Equator?

If you could dig a hold through earth and then jump in, would you just float in the middle? Forget the magma and lava and stuff for this question. Like eventually you would just float in earth right? What else could happen?

@hardik875

4 ай бұрын

you would oscillate around the center of the earth, because when you cross the center, the gravitational force would start deccelarating you and pulling you towards it. maybe

@universeisundernoobligatio3283

4 ай бұрын

What slows you down in the middle?

@inevespace

4 ай бұрын

you will accelerate until the center. Closer to the center - slower the acceleration(but speed is higher). So, in the center you will have maximum speed and 0 acceleration(because amount of mater on both sides is equal and gravity force is compensated). Passing the center, you will start to slow down, reach other side of planet with 0 speed and then fall back. This is what @hardik875 called oscillations.

@finnracing99

4 ай бұрын

You would have to adjust acceleration and top speed due to the fact that as you fall towards the center of earth by going below the surface level of the earth, the gravity effect will be different due to the change of position of you to the rest of the mass of earth. The constant value of gravity is altered the more you change vector location within the earth. That gets heavy lol

Wow Intriguing

You see Startalk video, You click video, you no choice, you good person

Interesting, can you guys expand on how we measure time by earths orbit, and (next episode) how our solar system orbiting the Milky Way is measured in years (horoscope, the age of Aquarius, and the “zeitgeist’ or how mankind figured this out at BC To AD...

i had one question, The transformer has time as a factor in its formula, you can use Einstein's formula for time and only theoretically build a travo so high and perfect that you use the mass of the earth as an energy source

Surprised that Neil left out the role of the Earth's tilted axis in creating the analemma. The tilt determines the height of the" "8", while the elliptical orbit produces the width of the "8".

Colored people's time also abbreviated to CP time or CPT

CP time is like what they say about Filipino time. It's important not to generalize or make assumptions about an entire group of people based on stereotypes. Each person has their own unique characteristics and behaviors, and it's unfair to attribute certain traits to an entire culture or nationality.

@kylelawson91

4 ай бұрын

man im white and run on cpt better late then never

@WhiteyMcCrackerson

4 ай бұрын

My dad is white and is always on cp time

@kylelawson91

4 ай бұрын

@@WhiteyMcCrackerson smart man

@janaelg

4 ай бұрын

Traditionally, “CP time” is aligned with African Americans. It’s a phrase, that we originated, to generalize OURSELVES b/c as a people b/c we seemed to always be late LOL. I promise you, Neil and Chuck weren’t generalizing all races/ethnicities of color. They were making fun of themselves as African Americans and it wasn’t meant to extend to other people of color. I understand and agree with your viewpoint about generalizing a group of people. However, being an African American myself, I can attest that we don’t take offense to the term nor feel slighted as an individual in any way. If we want our folks somewhere on time (not CP time)… we tell them it starts 30 mins early or we’ll say “look we’re not operating on CP time today. If you’re late, the doors will be locked and will not reopen” 😂 Again, I agree with your statement, but that’s now they intended that phrase to come across 🙂

Beautiful ❤

So I was noticing how the sun has been hiding out even on sunny days in a more southern sky. In November I had moved my shy plants that were north east near front of house into a more open space in the front yard because rhe dear sun wasn't peeking at them anymore and they needed the sunshine! I noticed in December how dark certain parts of the yard became because rhe sun was staying so low all day. Yet, it was frying my plants that faced more south and slightly west. I had to move my aloe plants AWAY from their southern windows or they got sun burned in December! OK. It all makes more sense! 😊

"Pagans know how to party!" I never thought about it like that. Man, I wish I had these guys teaching me science when I was in school.

Love you guys. I always learn something I never knew before when I watch. Most places on KZread make you dumber

"I learned sumthang today !" - Kyle from $outhPark Thx Neil & Chuck !

I had a great grandfather that adjusted his pocket watch to 12 o clock every morning when the sun rises

Is there anything beyond microscopic ? I mean spatially like can the universe expand inversely ?

My friend is like a Sun , almost always late 😂😂😂

i noticed this way back in hs. I could tell the time of day by the sun to some degree, but i was always a bit off and never knew why. The other kids thought it was magic or that i had a hidden clock or something.