Well because there is endless clips that explains the same thing and some are watched millons of times. This animation is cool but not something very outstanding
It is from 1961, you know. I'm from Chicago, and I remember seeing it around that time when I was 10 in the Mathematica exhibit at the Museum of Science and Industry.
@@roderickkrause8344 In another video the distance between Syene and Alexandria was given as 5000 stadia, which makes more sense. For this video's calculation a Stadium must have had a length of approx 1 Mile, which sounds illogical in the day's standards.
The measurements Eratosthenes took are based on the assumption that the sun is millions of miles away. (The distance of the sun has changed significantly over the last thousand years, by the way.) The flat earth model has the sun close to the earth (about 3000 miles) and smaller (about 33 miles wide). The sun then acts like a "spotlight" more than a giant ball of light, and it produces a finite throw of light. Therefore - going back to Eratosthenes- if the sun were directly above the well at Syene, it *would* cast a shadow on the stick at Alexandria.
@@AOMartialArts You have a point. This experiment of Eratosthenes was not designed to prove the shape of the Earth, but to measure its size. The shape was already well known to scholars at the time. If you reject the spheroid shape, and plug the two measurements into a Flat Earth Model, then yes, you could assume a small local sun. It should be noted though, that you will get an arbitrary height for the sun entirely dependent on where your two points of observation are. Now, with only a small adjustment, you can repeat this experiment in a way that tests the shape of the planet as well. Simply increase the number of points that you measure the angle from. This causes no issue on a globe. You can add hundreds of points and get consistent results, all pointing to an angular change of 1 degree for evey 69 miles. If you try to make 3 or more observations work under the Flat Earth Assumption it falls apart. If you have three different angles and you try to plot the suns height as where a pair of lines intercept, you will find yourself calculating _multiple_ positions for the sun. It gets worse, very quickly the more points you add. So, yeah, strictly speaking, Eratosthenes method with two points doesn't prove a globe Earth, but with 3 or more points, it completely contradicts a flat Earth, and fits with a spheroid Earth.
@@slev7n. The official distance which is currently 93 million miles has changed over the years because either they don't know or are just making it up.
How come there is no record of Eratosthene appearing in any books until the 1900's? Clearly some mythical entity to fool the masses just like most history. it's just HIS STORY
@@Original_Renegadeit’s not a “ BS” story, it’s empirical data that is easily verifiable, Flerf. You on the other hand have no evidence for your flat fantasy world
@@AOMartialArts He was trying to measure the size of the Earth not the distance from the sun! Besides the distance didn't matter because we know damn well a beam of light always goes straight! STUPIDITY AT THE HIGHEST LEVEL
OUCH... logical fallacy detected. The suns reflection from the well came from the center of the earth? Deepest hole we have dug is 9 inches across and 7.5 miles deep... the Kola Borehole. Do we recall what Eratosthenes map of the world looked like? ... but this is history and NO ONE would ever fabricate this stuff ...... right? ...... right?
@@1laforees829 not necessarily note Newtonian mechanics being overthrown by einsteinian gravity. While Newtonian mechanics is still absolutely correct in many ways it's still technically "not the truth".
0:29...I did't know Christ measured the Earth.
🤣🤣🤣
Good one 😊
😂 👍
I heard that and was like, "wait, what? That was worded kinda weird." He probably should've just said "B.C.", but it's kinda funny, lol
Thank you for this video, greetings from Germany!
Greetings from India 🇮🇳🇮🇳
Such a great man wow
Outstanding clip, why so little views? Magnificent idea for shorts with such content.
Well because there is endless clips that explains the same thing and some are watched millons of times. This animation is cool but not something very outstanding
@@fallendown8828 Its also very old. Charles Eames is long gone.
Sehr unterhaltend und gut erklärt!
Great video. My students loved it.
They are lying
Who's science teacher made you do this? Mine did.
i did this for maths :(
same, but the animation is old but really useful, but it HURTS MY BRUAINH!!!
Science teacher, not math teacher. He’s been teaching us about maps and stuff for so longggg and nobody wants to say it but we are all sick of it
I have a math teacher
lol same, mrs. b did
im in 7th grade, how bout chu
Wow it is amazing what science can do if used correctly!
This video feels like a nostalgia of something.
It is from 1961, you know. I'm from Chicago, and I remember seeing it around that time when I was 10 in the Mathematica exhibit at the Museum of Science and Industry.
This is the best explanation video of the subject.
Thank you for this video...
Excellent and valuable knowledge. Thanks for sharing.
regards
Uma
Eat your heart out flat earthers.
What year’s this from?
*Insane*
ty
Pog
khan academy
It’s actually 800km x 50. Not 500km x 50. The Earth is roughly 40,000km not 25,000km!
The 500 referred to Stadia measurements and 500 Stadia is equivalent to 800 km.
@@roderickkrause8344 In another video the distance between Syene and Alexandria was given as 5000 stadia, which makes more sense. For this video's calculation a Stadium must have had a length of approx 1 Mile, which sounds illogical in the day's standards.
American video, American units.
I think they are using miles.
Who used kilometers back then?!
Carl Sagan explains this a bit better
If my science teacher teacher mrs. b is reading this I did the assigment :)
ua-cam.com/video/FcDe14Yukeo/v-deo.html
It came into fruition...
Shorts (TikTok)
Hallo 2EB
In here to get the spelling in my head I spelt his name as erastosttinis
yup
Eratosthenes didnt invented the sieve. it was invented by sundaram, a mathematician from India 🇮🇳
It is amazing how much the Greeks knew about India & its knowledge. China, too! Man is just a wandering merchant, no?
that is unbelievable
wait, isn't it supposed to be 40,075km?
He calculated around 40,000 km.
@@mamo4678 Might be.
অ
Tos the nees lol
i still dont get it
It's bs
@@raystpierre4061no it isn’t
@@raystpierre4061 cry harder Flerf, the earth is a sphere
das ist Englisch
No scheisse!
@@migueldecarvalho8012 and David, you two cannot spell.
This is German
Flat Earther, your reply please?
The measurements Eratosthenes took are based on the assumption that the sun is millions of miles away. (The distance of the sun has changed significantly over the last thousand years, by the way.)
The flat earth model has the sun close to the earth (about 3000 miles) and smaller (about 33 miles wide). The sun then acts like a "spotlight" more than a giant ball of light, and it produces a finite throw of light. Therefore - going back to Eratosthenes- if the sun were directly above the well at Syene, it *would* cast a shadow on the stick at Alexandria.
@@AOMartialArts Earth's average distance to the Sun doesn't change
@@AOMartialArts You have a point. This experiment of Eratosthenes was not designed to prove the shape of the Earth, but to measure its size. The shape was already well known to scholars at the time.
If you reject the spheroid shape, and plug the two measurements into a Flat Earth Model, then yes, you could assume a small local sun.
It should be noted though, that you will get an arbitrary height for the sun entirely dependent on where your two points of observation are.
Now, with only a small adjustment, you can repeat this experiment in a way that tests the shape of the planet as well.
Simply increase the number of points that you measure the angle from.
This causes no issue on a globe. You can add hundreds of points and get consistent results, all pointing to an angular change of 1 degree for evey 69 miles.
If you try to make 3 or more observations work under the Flat Earth Assumption it falls apart.
If you have three different angles and you try to plot the suns height as where a pair of lines intercept, you will find yourself calculating _multiple_ positions for the sun.
It gets worse, very quickly the more points you add. So, yeah, strictly speaking, Eratosthenes method with two points doesn't prove a globe Earth, but with 3 or more points, it completely contradicts a flat Earth, and fits with a spheroid Earth.
@@slev7n. The official distance which is currently 93 million miles has changed over the years because either they don't know or are just making it up.
How come there is no record of Eratosthene appearing in any books until the 1900's? Clearly some mythical entity to fool the masses just like most history. it's just HIS STORY
And is all wrong!
Nope it is simple math and the simplest observation you can even make in 260BC
Sun beams travel in parallel lines! You have a flashlight? Can you make the light bend from me? Yeah bend that light for me baby! M0r0n!
@@fallendown8828 Do you really believe this BS story that has no evidence to back it up except some books written in the 1900's? 😂
@@Original_Renegade Flat retward alert😑
@@Original_Renegadeit’s not a “ BS” story, it’s empirical data that is easily verifiable, Flerf. You on the other hand have no evidence for your flat fantasy world
Based on a lot of assumptions.
Like what
@@anonphil The distance of the sun, for one.
@@AOMartialArts You mean the distance from the earth to the sun? They don't even mention that in the video, why would it matter anyway?
@@AOMartialArts He was trying to measure the size of the Earth not the distance from the sun! Besides the distance didn't matter because we know damn well a beam of light always goes straight! STUPIDITY AT THE HIGHEST LEVEL
@@AOMartialArts what...
Oh no here lies nasa's lies... Wow.
Nope it is simple math and the simplest observation you can even make in 260BC
Grow up
OUCH... logical fallacy detected.
The suns reflection from the well came from the center of the earth?
Deepest hole we have dug is 9 inches across and 7.5 miles deep... the Kola Borehole.
Do we recall what Eratosthenes map of the world looked like?
... but this is history and NO ONE would ever fabricate this stuff ...... right? ...... right?
Nobody’s saying the sun’s reflection came from the center of Earth. So what fallacy is it when you just make shit up?
You just made that up
Nobody said that, Flerf
This experiment just assumes a belief.
no, it has data that confirms a theory
Once a theory is confirmed it should be factual.
@@1laforees829 not necessarily note Newtonian mechanics being overthrown by einsteinian gravity. While Newtonian mechanics is still absolutely correct in many ways it's still technically "not the truth".
@@1laforees829 wait a sec, you don' think the earth is flat do you?
Stating beliefs from your space ball religion proves you're great at believing