How Eratos­thenes Measured The Earth's Circumference With A Stick In 240 BCE, At An Astonishing 38,624 Kilometers
How Eratos­thenes Measured The Earth's Circumference With A Stic…
1 month ago
iflscience.com
SOLVED: Circumference of the Earth The Greek mathematician Eratosthenes (ca. 276-195 B.C.) measured the circumference of the earth from the following observations. He noticed that on a certain day the sun shone directly down a deep well in Syene (modern Aswan). At the same time in Alexandria, 500 miles north (on the same meridian), the rays of the sun shone at an angle of 7.2^∘ to the zenith. Use this information and the figure to find the radius and circumference of the earth.
SOLVED: Circumference of the Earth The Greek mathematician Er…
Jan 20, 2023
numerade.com
Circumference of the Earth The Greek mathematician Eratosthenes (ca. 276-195 B.C.) measured the circumference of the earth from the following observations. He noticed that on a certain day the sun shone directly down a deep well in Syene (modern Aswan). At the same time in Alexandria, 500 miles north (on the same meridian), the rays of the sun shone at an angle of 7.2^∘ to the zenith. Use this information and the figure to find the radius and circumference of the earth. | Numerade
Circumference of the Earth The Greek mathematician Eratosthene…
Jun 22, 2019
numerade.com
How an Ancient Greek Calculated the Earth's Circumference - GreekReporter.com
How an Ancient Greek Calculated the Earth's Circumference - Greek…
Jul 1, 2023
greekreporter.com
This incredibly accurate science experiment was centuries ahead of its time. | Business Insider
2:02
This incredibly accurate science experiment was centuries ahead o…
24.5M viewsOct 28, 2016
FacebookBusiness Insider
This measurement is more than 2,200 years old, and its accuracy is remarkable
This measurement is more than 2,200 years old, and its accuracy i…
Sep 4, 2021
ABC Newsbusiness reporter Gareth Hutchens
Shadows can help measure Earth’s circumference! 🌍 2,200 years ago, Greek mathematician Eratosthenes used this clever method. By measuring shadow lengths in two cities 794 km apart and applying simple math to relate the angle to the circle’s circumference, he calculated Earth’s size with remarkable accuracy—nearly matching today’s value! It’s a great example of how math isn’t just numbers—it helps us explore, understand, and measure the world around us in incredible ways! — Learn Math the Right
1:08
Shadows can help measure Earth’s circumference! 🌍 2,200 years ago, …
5.2K viewsNov 5, 2024
FacebookCuemath
How Ancient Greek mathematician Eratosthenes calculated the Earth’…
Jan 5, 2018
protothema.gr
1:12
171K views · 921 reactions |  #EarthDay: Not only Ancient Gree…
171.3K views3 weeks ago
FacebookGreek Reporter
How Do We Measure the Size and Shape of the Earth?
Oct 14, 2019
thoughtco.com
Knowledge of the Ancients: Early Measurements of the Earth
Oct 18, 2021
historyguild.org
0:54
7.8K views · 103 reactions | Carl Sagan explains how the ancient...
3.8K views2 weeks ago
FacebookSpace Science
0:17
How the ancient Greeks proved Earth was round over 2,000 years …
Dec 28, 2017
The IndependentLydia Spencer-Elliott
0:43
Eratosthenes: The First Man to Measure the Earth’s Circumference
317 views3 months ago
YouTubeWorld Legends AI
0:18
How Eratosthenes Measured the Earth Without Technology
260 views1 week ago
YouTubePraagmatic Tales
9:59
He Measured the Earth… 2,100 Years Before Satellites
5 views1 month ago
YouTubePastMinds
1:29
How One Greek Scientist Measured the Earth With a Shadow
982 views2 months ago
YouTubeHistorical Stories
0:50
🌍 Eratosthenes Measured the Earth with a Stick! | Ancient Genius #vir…
2 months ago
YouTubeAlpha Graphians
0:57
Europe Didn’t Teach Africa — Africa Taught Europe. 👑
1.3M views2 months ago
YouTubeAfricanCore
0:36
How Ancient Greeks Calculated Earth's Size 🤯 (240 BC Genius)
3 views2 months ago
YouTubeGenius240BC
0:58
The Man Who Proved the Earth Is Round — 2,000 Years Ago! #facts
2 views2 months ago
YouTubeHigh Info
0:23
He Measured Earth 2000 Years Ago 🌏 "Eratosthenes"
1.2K views1 week ago
YouTubeTruth in side
1:06
How a Greek Librarian Measured Earth with Just a Stick in 240 BC #…
1.8K views1 week ago
YouTubeThe Parable Keeper
0:30
He Measured the Earth… with a Stick #shorts
2 months ago
YouTubeMindForge
3:07
How Did Eratosthenes Measure Earth's Circumference?
49 views3 weeks ago
YouTubeEurope Through the Ages
2:32
How Eratosthenes Calculated the Earth's Circumference
3 months ago
YouTubeMath World
6:42
A History of How Earth Was Measured
10 views2 months ago
YouTubeIronboy's Universe
@explains.everything on Instagram: "Ancient Greeks amazed the worl…
28.2K views3 months ago
Instagramexplains.everything
7:29
Eratosthenes
70.1K viewsMar 9, 2012
YouTubeMITK12Videos
Calculating the Earth's Circumference by Eratosthenes
188.6K viewsJan 14, 2025
TikTokprfa_story
See more videos
Static thumbnail place holder