Does your birthday fall on a Leap Day?!

@HandMeDeals

5 ай бұрын

Yes and my father returns every Leap Day. Im 24 but my father says im technically 6 years old so he takes me to Chuck E Cheese.

@JordanVargas-bz6ym

5 ай бұрын

deez nuts

@jvttvj

5 ай бұрын

So your birthday celebration is not on your birthday????

@jvttvj

5 ай бұрын

😂

@joeh2236

5 ай бұрын

Nope, scientists need figure my sign out, lost to many to it

With Chuck's spot-on comedic touch & Neil's and incredible understanding of how astrophysics, you guys have the most entertaining and informative science show on KZread.

@StarTalk

5 ай бұрын

That's very kind, thank you!

@anthonygordon9483

4 ай бұрын

Neil is a comedian himself . Chuck just compliments him.

@christophermejia5998

4 ай бұрын

I’m happy I’ve found this channel 🙌🏾

@user-kw4iu8ge2w

3 ай бұрын

Love them .... excellent learning podcast 😊

We love you Chuck. The Universe would not be the same without you.

@Eneov

5 ай бұрын

The universe needs Chuck.

@SordidusFellatio

5 ай бұрын

I think it will

@kidchiko9435

5 ай бұрын

That is a beautiful sentiment. But in the spirit of Neil, by its very definition the universe would be different with him gone. The butterfly effect alone would require the universe to be slightly different.

@danceman3000

5 ай бұрын

Chuck is so important lol

@jamesstevens9394

4 ай бұрын

Well. that MIGHT depend on which universe we were in........hmmmmm......

Science wasn't anywhere this interesitng or cool when I was in school. Chuck is quick to pick up on all the nuances and Neil is beyond an great explainer! Thanks so much.

I once flew from San Fran to Frankfurt on December, 31st. The flight is 11 hours, guess what we fellow travelers did.....we celebrated New Years 10 times, each time the new hour began.....😂

@RK-tf8pq

5 ай бұрын

I think it would be more appropriate to celebrate the new year each hour if you travel from east to west, since, for example, the new year starts earlier in Frankfurt than in San Francisco. But even then since the Earth moves faster than the plane, you will be continuously falling behind after you celebrate the first time, or in other words, you would not make to any subsequent location at the exact moment of the new year for that location.

@ray_ray_7112

5 ай бұрын

@@RK-tf8pq True, unless you were flying on the Concord, which is no longer in operation, mainly due to its sonic booms.

@masoodkhan618

5 ай бұрын

If you from san fran to Frankfurt u will be flying from west to east. Even if u take the flight at 11:59pm on 31st when u r moving towards east ur going ahead in time if u flew one hour and as per time zone u will be 1 hr ahead of the time you depart anyway I give up explain I know u taking about people taking flight from Japan to sa

@Gle7N

5 ай бұрын

@@masoodkhan618 I guess you're too nerdy to grasp the meaning of what I wrote

@lolocarter7837

4 ай бұрын

Luv that! 🎉

If Neil was my science teacher in high school I would never miss a day.

@Greg-mu9kp

4 ай бұрын

Until he started taking about his identity politics

I just learned something new and I'm 67. Who says you can't teach an old dog a new trick, because Neil just taught me something. Thanks, Neil!

@user-kw4iu8ge2w

3 ай бұрын

Right am 63 😊

@LaughAlil

Ай бұрын

Feel the same way sir thank u Neil

Another interesting fact. England, being a Protestant country, did not adopt the Gregorian calendar until more than a hundred years later, which meant that in the American colonies, the date skipped ahead eleven days, which is why George Washington's Birthday is celebrated on the 22nd, despite him being born on the 11th.

@klaxoncow

5 ай бұрын

And Newton was born on Christmas Day, according to the Julian calendar that was in use at the time. Or a more boring January 4th by the Gregorian calendar.

@FameyFamous

5 ай бұрын

That short year for England and the US was 1752.

@troelspeterroland6998

5 ай бұрын

Tsarist Russia didn't adopt it until the October Revolution -- which means that the Soviet Union celebrated the October Revolution each November.

I was just talking about the abbreviated October of 1582 yesterday! Excellent timing!

@sasikantht1658

5 ай бұрын

Very interesting coincidence! We want more of this from the internet and people!

@RYTF5

5 ай бұрын

This vid is a repost. I remember it from a couple years back

@mr.donkenny

5 ай бұрын

Someone else besides God should be listening to you.

@wildhairsearch

4 ай бұрын

😂😂😂

Chuck and Neil has such great chemistry

omg chuck always cracks me tf up, "this is rome!"

@EmpyreanLightASMR

5 ай бұрын

Guess what October. Dominusis spiratu: half the month is gone. lmaaoooo

what i love about this is that in Futurama they added this fact and that's why even though Fry got frozen at midnight of new year's eve, he woke up at like 6 pm 3 thousand years later.

It's my son's 4th/1st bday this leap day! I'll have to show him this (maybe on his 2nd bday though...)

I know exactly why we have Leap Days. I'm still watching. Because it is so great and I end up still learning something new. Always keep learning

@MattIsntYoung

5 ай бұрын

I read "leap learning" 😅😂

The 24 hr straight celebration we had on New Year's 2000 was something truly special. For those around to remember it, the hour by hour massive fireworks and celebrations was incredible, and then they cut them all into like a 4 hour feature film of nothing but grand finales......it was something truly amazing.

Thank you for your Intelligence, humor and down to Earth reasoning.

@StarTalk

5 ай бұрын

Thank YOU!

I love this show, just wanted to say that, peace out

This was so funny and informational, thanks guys!

In Persian calendar (Solar Hijri) which is the most accurate calendar that predates the Gregorian calendar, the first day of the new year (called Nowruz) happens on the first day of spring (21st March). I love the calendar mainly because of two reasons: 1) The first day of spring gives the vibes of a new earth, you see birds singing, flowers blooming, and you see everyone is happy with the big celebration (Nowruz). The alignment of the New Year on the first day of spring is quite underappreciated. (BTW, Nowruz was celebrated thousands of years ago on the first day of spring, long before the Solar Hijri calendar. 2) One of its greatest contributors of the calendar is Omar Khayyam, I love Omar Khayyam because he was not a theist despite being surrounded by theologians (his lack of belief is quite clear in his poetry if you can understand Persian, and that's something I personally admire). His poetry is legendary if you know Persian. Once translated though, it does not carry the same weight at all. He was an astronomer besides being a mathematician and a poet. Now that I live in the west, I don't get anything close to the New Year vibe I used to get. But that's a compromise for having freedom of belief here for me ;)

@Ketraar

5 ай бұрын

As someone that grew up with the Gregorian calendar, already as a child I thought that placing the new year in this odd position was weird. Its just after Winter Solstice so at what you would intuitive feel like the end of a year. I mean we even have the expression of "winter years" for old people. Spring being the "rebirth" of nature always felt like the thing that made most sense to set a new year. I guess the reason is that back in the olden days the solstice defined the restart of the solar cycle, as in days start to get longer. And the celebration was afaik around 7 days so think the new year was just set at the end of those festivities and it kind of stuck.

Came for Neil’s Star Talk and stayed for Chuck! They’re so great together!!! 👏🏼 👏🏼 👏🏼 🪐 💫 we need them on prime time television - so funny and educational. We need more of this. Awesome content.

NdGT, one of THE all-time best explainers of history and science. Period, 👏🏻

I just connected to why it's in February. The Julian calender begins in March.

Hahaha! My aunt was born on a leap year. She has now passed but I wish she was around for me to tell her all of this! She would have loved it. 🥰

Correction Neil, there are 38 time zones, not 24. Time zones are arbitrary man made entities, so they don't have to follow the whole hour. Thus, there are 14 zones that are offset by half or quarter hours.

@timauth

5 ай бұрын

Interesting. Thanks for sharing. Like Neil, I just assumed that there was only 24.

@zeroone8800

5 ай бұрын

The extreme time zones differ by 26 hours although the most behind timezone has no permanent population.

@alexbeu3086

5 ай бұрын

Ha! Nice touch!

@StarTalk

5 ай бұрын

Thank you for that correction!

@ssaranillio

4 ай бұрын

There are 24 time zones in the world, each representing a different hour. 24 time zones are based on a 24-hour day. Each time zone is approximately 15 degrees longitude wide. Each time zone covers 15 degrees of longitude, meaning the Earth is divided into 24 different regions, each 15 degrees wide, for the purpose of determining time. Some regions and countries, however, have chosen to adopt a time zone that does not adhere strictly to these 15-degree segments due to various reasons, such as historical, economic, or political considerations. This can lead to variations in the total number of time zones when different sources are consulted. For example, the United States technically spans six time zones, but due to its territories and certain states like Arizona and Hawaii not observing daylight saving time, the total number of distinct time zones in the contiguous U.S. is actually four. Similarly, Russia spans nine time zones, but due to the vastness of the country and the adoption of the "Moscow Time" across several regions, the actual number of distinct time zones within Russia is eleven.

This is my favorite video conversation😊 only can both of you guys can explain and entertain on a subject like this that i personallylike very much

I watch your channel and yes you talk about leap days all the time. Yalls laugh at the beginning seems to indicate that lol. But i love it anyways. Repetition makes for better knowledge and a friendly reminder. Keep doing it every leap year if you ask me

Loved it! I never knew the origin of the Gregorian calendar. It’s great to learn something new every day.

Black History Month is in February because that's the month Black History Week was in (before 1970). In the mid 1920s, the Father of Black History, Carter G. Woodson, started Black History Week in mid February to coincide with the birthdays of Abraham Lincoln and Frederick Douglass.

@nicholasharvey1232

5 ай бұрын

Did they really have to give the Blacks the shortest month to celebrate their history? It just sounds like an anti-Black conspiracy to me.

@rajn7231

5 ай бұрын

Wow, but who asked?

@FoodFromTheHornCA

5 ай бұрын

Nobody just take it as a "Fact of the Day" and move on 😂

@EricRoss57

5 ай бұрын

@@FoodFromTheHornCA Thank you! Unfortunately, this site is also not free from nimrods.

@juliannaschroeder6857

5 ай бұрын

They joked about Black History Month being the shortest month of the year, like it was some kind of ripoff. Listen at 3:47 when they call February "the neediest month."

I have three of you’re wonderful books my favorite is “to infinity and beyond” I hope you keep on sharing knowledge on this planet. 👍

In the spring of 2000, I was taking a class in college called Sun and Solar Systems and I learned this information just a few weeks after the 2000 leap day occurred. It's still my favorite fun fact to tell people.

This video alone made me subscribe to this channel.

Chuck was killin the jokes on this one 😂

But to be more precise, we have to take out the 400 year leapday every 3200 years. The year 3200 should not be a leap year.

@xenos_n.

5 ай бұрын

Fortunately none of us have to worry about that.

@JohnC29

5 ай бұрын

Will we still be using the Gregorian calendar then? I don't think any other calendar system has been used that long.

@rdspam

5 ай бұрын

Not part of the Gregorian Calendar nor ISO8601. The current orbit extrapolates to an extra day in 3300 years, but accounting for past and projected changes to earths orbit, it’s likely about 7700 years.

@raghavendras4097

5 ай бұрын

​@@JohnC29"Pnchanga" India has been using it like forever so it's just uneven days and absolutely perfect years since the beginning.... Still been used for all religious timing.... I think that will be continued to be used

@SiqueScarface

5 ай бұрын

@@raghavendras4097The Panchangam calendar works differently. Instead of pre-calculated corrections, it inserts an additional (lunar) month each time the calendar New Year differs too much from the astronomical observation. That's why it is correct in the long run - it just adapts the calendar retroactively. The predictive power but is rather small.

I loved this! This explains it in detail that school never taught us.

Fun chat! Enjoyed it, laughed at it and learned from it!

This is very informative!

I love y’all. Thank you for teaching us in such a beautiful way.

Great explainer on why it's called the Gregorian calendar.

The final twist is (and it's a pity that Neil did not mention it) that the leap day is 24th February - not 29th February. The 24th day of February has to be "repeated" in every leap year since 1582.

@oh_yeah_

5 ай бұрын

The thing that you judge a scientist by not telling u things he would not want to share because it would create more confusion for normal human beings is pity in itself. Why do you think he never ever mentions what time it takes “exactly” for earth to do one revolution around the earth? He always says “365days and little less then 6hours” (its actually 365days 5hr 48mins 45seconds) because he doesn’t want people to go on about what’s wrong with the Gregorian calendar, if you calculate you would find out (and this is an actual limitation of Gregorian calendar) that after about 3200years you should take away a leap year because it overcorrects it (he knows this) he just doesn’t want people to think much and understand whats normalised now like all other scientists My point is… not everything he doesn’t tell and knows means he is doing it for no reason

@Emmybankz

4 ай бұрын

Please kindly help me understand what you mean

@LaszloPalfi

4 ай бұрын

@nkz In 46 B.C. Julius Caesar as High Priest reformed the calendar. It was necessary because at that time the calendar was already 3 months ahead of the rotation of our planet. The year the Julian calendar came into force became the longest year in history, as the 46th year before the birth of Christ was 445 days long. This was the only way they could bring the calendar into line with astronomical observations. The Julian calendar was the first one that contained 365 days, which were extended to 366 days by repeating one day every 4 years. The repeated day was then February 24. Since then, the 24th day of February has been repeated every leap year, which makes the days from 24 to 28 move forward in time. In short, the inserted leap day is not February 29, but the repeated February 24, the reason for which is the preservation of ancient Roman traditions.

@Emmybankz

4 ай бұрын

@@LaszloPalfi thank you so much

I love how they're giggling like school girls throughout🤦🏾‍♀️😂🤣

i do like it when they talk history.. thankyou for sharing this 🙂 x

Thanks for sharing knowledge in that way!

My Grandfathers did. (1924) I remember in 2008 we had a big party to celebrate his 21st birthday and he was finally old enough to drink.

I always thought it was weird that the day started in the middle of the night.

@troelspeterroland6998

5 ай бұрын

Many languages have different words for "day" and "24 our cycle" (English technically has 'nychthemeron' but it's rather rare, unlike the words in those languages).

PLEASE let the pod just flow and don’t cut as much, that’s the great part about podding is that you can just laugh and we laugh with you. When you cut it so much it makes the viewing experience not as good as it should be!

In Persian year that 5 hours and fifty something minutes and seconds is calculated to celebrate every new year. So the time to celebrate new year is different every year.

@kunalsinghal1247

5 ай бұрын

To be honest that would be easier. All you need to account for is an extra number of hours. Here we are actually playing with days to compensate 😅.

I tune in for Neil but Chuck makes the show😊

3:50 😂😂😂😂🔥🔥🔥🔥

Beautifully explained by these two brilliant guys 🎉🎉🎉❤❤❤

Dr. Tyson...bless you good sir. Just...bless you.

This explainer was amazing guys! Greetings from Colombia

Luv this Great Info / Fun

Always enjoy your teachings. Learning IS fun!

I celebrated new years this year flying from the east coast across Atlantic. Hit midnight a few times in the air.

Thank you for sharing that information

Love you guys, i listen to you everyday anytime i drive for work.

Wow. I'm enjoying this. Thanks very much, guys.

watching this on a leap day 2.29.24

Great explainer! Thanks!

This was so informative, thank you! I mean, everyone more or less knows about the leap day, but not so much about the 100-year and 400-year corrections! Awesome!

Spring comes faster every year!

The best trio of all time. Neil, Chuck and Physics.

I appreciate this. Thank you.

So Informative 👏🏿👏🏿👏🏿👏🏿

What another amazing episode!

Fascinating thanks for sharing

Excellently explained, thank you

Thanks!

Okkay, less than 20 seconds into this video, I can give Neil an emphatic "Yes, you've already done this as a Neilsplainer." It opened with Neil asking Chuck how long a year is and proceeded through the Leap Day algorithm in the Gregorian Calendar. (By the way, even with these adjustments, we'll still be off by a day in a few thousand years, but considering the relatively short lifespans of civilizations, it's close enough.) I think there was also a bit about solar and sidereal time.

I first found out about the 400 year leap day when I was in the 7th grade but the way I understood it was that an extra leap day was added to February which meant that every 400 years February would have 30 days. The part about not adding the leap day every 100 years was left out. So, the year 2000 was divisible evenly by 100 which meant that there would be no leap day. BUT, in was evenly divisible by 400 which meant the leap day was put back in. Now I know why February, 2000 did not have 30 days in it like i was expecting. I was kinda of looking forward to February 30th for the only time in my lifetime. Great show. You truly are our personal astrophysicist, Neil.

That final point leads me to something amazing. Just imagine the whole planet celebrating an agreed-upon exact moment -- regardless of time zone -- as the beginning of the New Year. Will it, would it, */could/* it happen? I don't know. I'll just sit here and imagine it for a while.

@dinglemccringleberry9019

4 ай бұрын

Celebrating the new year during the day? I assumed it be cooler that they'll instead use confetti tipped fireworks. An also, since it's daylight you can see things in the sky much clearer than nighttime. So, flybys would be a thing, so almost like incorporating parade style celebrations. Imagine the entire aircraft fleet of the entire country doing a flyby or at least a huge number during the event due to size of airspace they can restrict.

I love this duo, please never change.

Very interesting 🤔 thank you 🙏🏾

Love the editing.

I friggin love Neil and Chuck, I see you every time I can, but, this subject has the best video ever explained by Michael(vsauce) Tittle: How Earth Moves.

It's a skill to explain complex things in such a jolly mood. Chuck makes it funnier!

As always Chuck has me crying laughing. XD

Awesome too hear about!!

Nitpick #1: Leap days (which BTW existed even before the creation of the Julian calender, but did not have clear rules) were always put at the end of the year. During the late Roman Republic the year began with the first day of march. (BTW this is also the reason why february has less days than any other month, because every time the number of days of a month was increased from 30 to 31 the additional days was taken from feruary) Nitpick #2: Pope Gregory's concern was not that Easter and passover could coincide. His main concern was that Easter would come so early in the year that it were still winter. The removal of those days to synchronize the calender happened in October because because these day were no important days in the christian lithurgical calender.

I absolutely love your stuff.

It was good to hear a tutorial about Leap Day

thank you so much very interesting

Enjoyed this

"Spring is just sprunging all over the place!" 😂😂😂

This was so dope! 💫

Wow!! Best explanation EVER! Although I didn't understand that 100 and 400 year thing.

Thank you

This makes sense🎉 thanks yall

Neil, you did actually go over this back on Oct 17, 2023 in the video “How Long Is A Year, Actually”.

Chuck keeps stepping on the information with banter

That was awesome!

thank you always enjoy your podcast

I didn't know the 4th 100 century thingy for leap year 😮

@0biwan7

5 ай бұрын

most of us live in a time where it doesnt really matter. most people alive were born after 1900 and many of us will die before 2100. but there are now probably some young folks that will live to see 2100.

Omg I can see the equations and mathematical terms flying by head like those meme when someone trying to understand something. If it wasn’t for Chuck and Neil laughter my head would explode 🤯 😂😂. Love it ❤

There are more than 24 time zones. Currently, there are 38 different local times in use worldwide, each defined by its UTC offset

That was an amazing explanation. I must’ve been sleeping during the lesson in school.

Interesting fact, thanks.

Loving them being in the office again together ❤❤❤❤

Thanks for such a great explanation, I’ve always had these 2 questions about leap years, though: 1. Why it has to be in February? 2. Why we don’t have 2 months with 29 days, but we only have 1 day with 28 days? How did we get to that? Thank you again!

Speaking of the Roman Senate, Chuck, why is New Year's Day on January 1st? In parts of Europe, it was March 25th for a time. But that was temporary, and it went back to January 1 eventually - because that was the day the Roman Senate met for the first time in the year. It was the day all appointees took their office, so it was the day of the change of administration. Now, the Greek scientists who invented the Julian calendar in 46 B.C. knew the year was about 365.25 days long, also from just watching the sky. So they set it up for one leap day every four years. However, the Roman Senate wouldn't leave well enough alone. Appointees every fourth year got an extra day to their term of office, and everyone wanted in. So for a while, leap days had to be approved by Senate vote. And guess what? Three years apart. Five years apart. It was messy. That's the Senate for you. And it caused big problems for government, legal cases, etc. So eventually the Emperor put an end to that senatorial authority. And that, plus the extra leap day each century, is how the equinox ended up on March 21st when the Church adopted its official Easter calculations (around 550 A.D.). In Julius's time, the equinox was more like March 25th. How do we know? Because the pagan holiday of Sol Invictus fell on the winter solstice, and that was December 25th. And way back, that's why the Church assigned Christmas to be celebrated on Dec. 25th. Because you had to choose which holiday to observe. Be Christian, or be pagan. Maybe you didn't want to know all that, and many wouldn't, but hey, I'm something of a geek.