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Tracking Time: The Julian to Gregorian Calendar Transition Explained | Neil Degrasse Tyson 1159

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تم نشره في 2023/05/28

Join Neil deGrasse Tyson on the Joe Rogan Experience as he delves into the fascinating history of the Julian and Gregorian calendars. Discover how the leap day and the subtle differences in tracking Earth's seasons led to the need for calendar modifications. Learn about the role of Jesuit priests in developing the accurate and widely-used Gregorian calendar, including the bold move of removing ten days from the calendar. Gain insights into the astronomical considerations and the significance of timekeeping in this thought-provoking discussion.

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تعليقات - 133

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@exatasdev1579قبل 11 أشهر for context, joe asked what was tyson's birthdate 296
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@november132قبل 11 أشهر Imagine you have an assignment due in 11 days and now it's due tomorrow 65
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@kenarbesقبل 11 أشهر Isaac Asimov wrote that he lost some days when Russia changed calendars. He wanted those days back. 31
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@matthewhegarty729قبل 11 أشهر And because of that change, my wife (born on Feb 29th) and mother-in-law have battled for 39 years over what day to celebrate my wife’s birthday on non-leap years. 7
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@georgegreene8744قبل 11 أشهر He's explaining that entirely wrong. The amount of time it takes us to go around the sun and return to the same solstice (or equinox) iS EXACTLY one id="hidden2" class="buttons"> year BY DEFINITION and the seasons last EXACTLY the length of time between a solstice and an equinox BY DEFINITION. The reason for the drift from Julian to Gregorian was simply that the number OF ROTATIONS of the planet during that constant/defined time IS NOT exactly 365&¼. It's A LITTLE LESS than that -- so every 20th qudrennium or so, you DON'T need a leap day. Over the intervening millennium, the Julian calendar had 10 too many, so they came up with a more complicated rule to have 9 fewer -- per millennium. ....وسعت 17
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@YTRulesFromNMقبل 11 أشهر The Vernal Equinox was originally April 1st and that was the beginning of the year. People that believed the year should start at the Vernal Equinox were called April Fools. No, I'm not kidding. This really happened. 73
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@Leisurelee53قبل 11 أشهر fun fact. Julius Caesar was poltifex maximus while on campaign in Gaul. his office was responsible for tracking and correcting the then calendar to account id="hidden4" class="buttons"> for these known discrepancies. it was so jacked up even before he took office and then neglected it to go on his adventures, that part of why he was able to so quickly take Rome was the senate thought it was still the end of winter and not the beginning of spring.
one of the first things Caesar did as dictator was bring a famous mathematician from Alexandria and create the Julian calendar.
bro exploited the game then immediately patched it. ....وسعت 32
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@theMightyWhyteyقبل 11 أشهر No, the biggest change in the Julian calendar was that the Pontifus Maximus (who at that time was Julias Ceasar) couldn't add days in for political reasons (Ceasar was a master at this), because it hurt the calendar. 3
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@thethirdjegsقبل 11 أشهر It is easier to explain that the julian calendar has too many leap years because 1 year is not equal to 365.25 days. That slight difference in the hundredths id="hidden6" class="buttons"> place is enough for the julian calendar to be 1 day out of sync every (less than) 400 years.
Now the gregorian calendar do not make leap years in the years that ends with 00 but are indivisible by 400. ....وسعت 2
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@chodeshadar18قبل 10 أشهر the Jewish calendar has been adding a leap month according to a certain schedule, because Exodus says Passover must always fall in the spring. This has been in use for about 2000 years. 1
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@Egilhelmsonقبل 11 أشهر The Roman calendar with which Julius Caesar started was legally alterable by Senate vote at whim; a good month according to the pontiffs (a group of politically id="hidden8" class="buttons"> connected priests, of which Caesar had become the leader, the Pontifex Maximus) might be extended by vote, and a month of Ill fortune shortened. Neil forgot to mention the longest year ever, when the Roman mess of a calendar had to catch up to its “correct” settings, which was over 400 some days long. Apparently the pontiffs kept playing around with the leap day, and so it took until about 24 BC before things reverted to Julius Caesar’s original plan. ....وسعت 1
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@PvblivsAelivsقبل 11 أشهر Moved January and February to the front of the year. Got rid of intercalary months. I believe it also adjusted the length of the months. 1
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@Telssa1قبل 11 أشهر I figured out how to do the Rain Man's day of the week trick, for the Julian and the Gregorian from 01/1/0001 onwards. Takes me a second or two.
There's a challenge for anyone who fancies it. 1
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@accountforcommentingقبل 10 أشهر Can you make video on other calenders , like the one we use in India 1
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@arealbigbossقبل 11 أشهر Neil seems like he’d be great at parties, but really it would be a massive pain getting stuck with the guy who wants to explain everything 4
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@havan56قبل 10 أشهر The time it takes the aert to go around the sun is t 365.256 days. .25 is handled by the leap day but that .006 did accumulate, hence the need for the Gregoian adjustment. Now Leap years aren't recognized in EVERY year divisible by 4, Only in years that is a multiple of 4 (except for years evenly divisible by 100, but not by 400) ....وسعت
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@anudeep3270قبل 5 أشهر If we take other calendars as reference .its hard to calculate ecclipses timings accuracy.future astronomical predictions.in accurate
gregorian id="hidden11" class="buttons"> calendar only accounts the leap years and timings.
(only who knows about time can understand this) ....وسعت
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@jkmil4981قبل 11 أشهر And when thay said we're going to skip the counting of ten days to make the calendar right, a lot of people thought that they were having the dats stolen from them
At least most of them were actually illiterate. 1
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@Steve-sg3uzقبل 11 أشهر Never let them tell you that the religious don't do science. In fact the Catholic church is responsible for practically making science a thing. 6
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@Zanenothقبل 11 أشهر Julius and Augustus both wanted a month and added July and August to the gregorian calendar. It's why December means 10 but is thr 12th month. Idk what Tysons on about lol. Its like he's just skirting over this. 1
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@granadosvmقبل 11 أشهر Jesuit priests do the work, Pope Gregory stamps his name in the improved calendar.
Sounds like every day management to me. 7
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@BawkBawkBawk666قبل 11 أشهر Joe: when's your bday?
Neil:
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@botwitapriceقبل 11 أشهر this is why the leap year has one day added, which is why February has 29 days instead of 28 days 1
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@69hunter55قبل 11 أشهر Joe originally was just asking him when will he pays him back for that 10 bucks Neil borrowed years ago. 2
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@maxberntsen4430قبل 10 أشهر What about the original 10 months?
Sept=7
Oct=8
Nov=9
Dec=10
Julius Augustus Caesar…. July August
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@kravmagoo9527قبل 10 أشهر I have a question. I don't watch or listen to JRE, except on YT. One thing I do know is that NDT is on the show A LOT. Does Joe have a Tyson Tuesday or something?
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@sskmanentsa5326قبل 10 أشهر What if the problem was not the seasons, but the holidays? Using the moon or sun or stars to create a calendar that correlates with our beliefs, we will id="hidden15" class="buttons"> always adjust. There was a whole lot of sun worship going around, so whose to say that they did not change rhe calendar just so these holidays fall relatively on the same day? ....وسعت
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@Developer888قبل 11 أشهر so basically everyones age before 1584 was actually older because we removed 10 days, that really screws up the mathematics, also if the Julian calendar was right that means we are actually younger by 10 days per year.
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@danlorett2184قبل 11 أشهر To put this in perspective: they created a calendar accurate for at least 10000 years WHILE THEY STILL THOUGHT THE SUN ORBITED THE EARTH. 3
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@rockitssقبل 11 أشهر these smart guys really are the disinformation kings imagine what the world could create if they were educated with the truth and were prepared or even allowed to share it with the world 4
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@lionelsammy6089قبل 3 أشهر Hi Mr.Neil , may I ask why u haven’t made any vid about Indian calendar? And the invention of the number 0 by Indians?
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@mikeagateقبل 11 أشهر Baloney! So a quarter of a day makes all the difference between Winter and Summer?!
Here in the UK we still have to put the heater on 5 June 2023! id="hidden18" class="buttons">
Why does such a 'clever' man come up with crap like this? ....وسعت 1
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@iGamezRoقبل 9 أشهر The Julian Calendar is still used by some parts of the Easter Orthodox Church.
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@Sparkfistقبل 11 أشهر The question was what dating format does he prefer.
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@magnusjensson8199قبل 11 أشهر Do you know of Þorsteins Surtur calender? It was rather precise. 3
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@fabulousfabricationsimmacu4962قبل 11 أشهر When is your birthday,, how much time you got?
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@berts558قبل 11 أشهر So if you're trying to figure out somebody's birthday who was born before 1584 you're going to need to know this to figure out what day they id="hidden19" class="buttons"> were actually born on.
eg. Sir Isaac Newton was born on Christmas Day what is birthday was by the modern calendar January 4th I believe ....وسعت
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@TheInator1234قبل 11 أشهر So we switched from tracking how long it takes to go around the sun, to tracking seasons changing. What causes the seasons to change again?
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@roguecheddar6252قبل 11 أشهر (From Animal House)
Gigantic Dude : Do you mind if we dance with your dates?
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@DatsiKxModzقبل 11 أشهر So are we actually living more in the future?
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@hlp4ever98قبل 10 أشهر Here he goes again. Mr overdramatic who tries to shock us with simple facts that we learned in junior high school if we paid attention.
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@rangerstl07قبل 11 أشهر The process of going around the sun results in one extra revolution of the earth.
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@JIMJAMSCقبل 11 أشهر Anybody else getting really tired of these "Rock Star "professors running around with their "I'm smart" let me spout off some reading comprehension skills? The Michio Ku is annoying also.
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@rusbea.2279قبل 11 أشهر Stop the discussion and use the Iranian calendar already !!
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@BoushoCقبل 10 أشهر That's not true, it's the difference between days and orbits. not seasons.
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@dragons_redقبل 11 أشهر This is the worst explaination of anything by someone who makes their living explaining things.
And NGT just answered the question "How do id="hidden21" class="buttons"> we figure out exactly how long it takes the Earth to go around the Sun?" with "A year!" ....وسعت
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@robertsmith2956قبل 11 أشهر We need a leap month to get the seasons back inline with the calendar months.
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@reginaldinoenchillada3513قبل 11 أشهر Damn, dude. I don't even have the attention span to make it thru a short clip.
Sorry ndt I'm out. Its u it's not me
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@John___Vegasقبل 11 أشهر or you throw out all the ego/nationalist/religious based calendars, and start using the logical 13 month calendar.the current calendars are simply stupid.
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@otnathقبل 7 أشهر And even the Gregorian calendar is wrong, lol
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@lewischasenقبل 11 أشهر .seriously..what about modern day was not influenced by passive aggressive paganism. Think about it. Halloween, Santa, April fools, days of the week id="hidden23" class="buttons"> are based off of norse gods, king Arthur is actually Christian cuchulainn, ect. ....وسعت
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@userbasbaقبل 11 أشهر I think NDT got his info all wrong.
The Islamic Hijri calendar is the most accurate.
Ain't that right, NDT?
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@DeerlyMusical2قبل 11 أشهر The Jewish calendar has remained unchanged since about 900 AD. And it's correct, I believe, to about1 second. Sorry, Pope Gregory.
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@bradfordrusso7480قبل 10 أشهر Your omniscient perroration is idiotically illogical. OF COURSE the cyclic orbit and the seasons co-incide. Careful listening to your exact words reveals id="hidden24" class="buttons"> NO stated difference between Julian and Gregorian. You incorrectly indicate that Julian DID have "leap year". But you make No mention of the day every 400 years. ....وسعت
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@YigithanTamer-ej9uiقبل 4 أشهر smug popular science guy impresses everyone with a mix of pure misinformation and some half-truths
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@pannonia77قبل 11 أشهر One mistake: the Gregorian calender was introduced in 1582. 1
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@richardcrow3042قبل 11 أشهر It's when you look up and realize they all have pagan names. Silly Cretin.
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@mikesnapper9001قبل 11 أشهر "I just him asked what today's date was "
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@beatlejuice13قبل 11 أشهر It’s still off. We’re going to have to skip a month at some point.
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@danielhill3665قبل 10 أشهر Who were the jesuitz priest sounds wickidly evilish
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@northshoreplaidقبل 11 أشهر I will always use BC and AD. Period.
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@jankom.7783قبل 11 أشهر Calendars before that also accounted for that problem - by not having any months for a quarter of a year. In terms of accuracy, that is still superior solution
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@CrashBox91قبل 11 أشهر So in regular ppl language we're F*****d
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@DLites151قبل 11 أشهر Wait till you learn about the Vedic calendar. 1