How the Ancient Greeks Proved that the Earth was Round

The story of how the Ancient Greeks and Eratosthenes proved that the earth was round over 2,000 years ago!

Thanks for checking out RealLifeLore2! The world is an amazing place that offers so much to explore. Join RLL2 as we dive into an array of interesting topics in the areas of Engineering, Science, Technology, and more.

Animations courtesy of Vincent de Langen

[jplabs]

Never underestimate the power of a stick.

[DownWithBureaucracy]

TLDR: you can disprove the flat earth society with a stick and a man counting his steps.

[DelkorYT]

Greeks thousands of years ago: this proves the earth is round
Flat earthers today: NASA conspiracy

[SuperWolfman]

Eratosthenes was also apparently nicknamed "Beta'' by his peers, both as an insult and compliment (depending on who said it) because it is said that he wasn't the best at anything, but second best at virtually everything. (i.e. he wasn't THE master expert at any subject, but he was a respected expert on the vast majority of them). Which is honestly more impressive then being a master at one subject.

[roflrofl]

*Only 29 dislikes*
They haven't discovered this video. Yet.

[icelord]

It blows my mind how over 2, 000 years ago there were people that knew the Earth was round and estimated its circumference but in the modern era there are people that still actually think it’s flat.

[PeterdaPanda]

How to confuse a flat-earther: Ask them how does the Flat Earth Society have members all around the globe.

[SacredCowStockyards]

Aristotle: "The earth is obv round"
Flat Earthers: **mad**

[dr.michaellittle]

Eristhophenes: “ this proves the earth is round...”

Flatearthers: “ maybe it was in your day, but it flattened out since then”

[DEPARTMENTOFREDUNDANCYDEPT]

The ancient Greeks were much smarter than modern flat-earthers.

[juliusnepos]

‘How Ancient Greeks proved the Earth Round”
Flat Earthers: *Internal Screaming*

[NotHPotter]

Great video, but a minor quibble: at 5:16, it should read 2% of the Earth's circumference, not 2% of the Earth's surface. Otherwise, top notch!

[andrewptob]

Amazing how smart ancient philosophers and mathematicians were.

[taufiqutomo]

Credit to the pro walkers, lest we forget.

[msgtvarela]

The shape of the earth has been known for 2 millennia, but flat earthers still can’t get it through their skulls

[asleenalee]

Me : *sees title*

My first reaction: checkmate, flat earthers

[shamrock]

So let me get this straight. Ancient civilisations from 2, 000 years ago could prove the Earth was round and yet there are still people to this day that think otherwise?!

[tasoslts]

It's really fantastic to think that ancient Greeks, having almost no tools, still discovered and set the beginning of most of the words sciences!!

[miniuniverse]

3:43 “preform simple calculations”
Proceeds to write advanced Algebra and advanced geometry

[TheTrainmobile]

Ancient Greeks: *discover the Earth is round and calculate its circumference
Flat Earthers: The Earth is flat and NASA is lying to us
Ancient Greeks: Am I a joke to you?