Dr John | How We Figured Out the Earth is a Sphere @DrJohnDev | Uploaded September 2024 | Updated October 2024, 2 hours ago.
How did the ancient Greeks determine the Earth is a sphere without modern technology? This video highlights the key historical moments and critical evidence that refined our understanding of Earth being a sphere, and its proper place in the cosmos. Beginning with the ancient civilization worldviews of Earth held by Babylon & Egyptian, and tracing the evolution of human thought leading to how we know the Earth is round.
📃Here's an outline:
1:52 | Ancient Babylonian and Egyptian Earth Models
3:54 | Egyptian Sundials & The 24-hour Day
5:19 | Babylonian Astrologers and the Zodiac
7:59 | Supporting evidence for the Greek Geocentric Model
10:27 | Eratosthenes Measurement of Earth’s Circumference
13:04 | Ptolemy’s Epicycle Orbits of Planetary Motion
14:06 | The Copernican Heliocentric Model & Galileo’s Supporting Evidence
16:47 | Newtonian Gravity and the Oblate Spheroid Earth Model
19:51 | Einstein and the General Theory of Relativity
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🔗References and Links Mentioned in Video:
1) “The Globe: How the Earth Became Round,” James Hannam (2023)
2) NASA's Scientific Visualization Studio:
svs.gsfc.nasa.gov
_
👍If you liked this video, subscribe to Dr. John’s YouTube channel: youtube.com/@DrJohnDev
🚨Follow Dr. John:
· X: twitter.com/drjohn_dev
Thanks for watching and as always,
Happy Learning!
🌌🌑🌎☀️🔍
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Equipment & Tech I use:
🔦 Raleno Softbox Photography Lighting Kit
🎥 Sony a7 Full-Frame Mirrorless Digital Camera
🎬 DaVinci Resolve 19
🎨 Blender 3.6
📈 Manim Community v0.18.1
🎤 Fifine Microphone
Unless indicated otherwise, all drawings, pictures, animations, script, problems, derivations, and videography in this video are creations, property, and copyrighted material of drjohn.dev.
How did the ancient Greeks determine the Earth is a sphere without modern technology? This video highlights the key historical moments and critical evidence that refined our understanding of Earth being a sphere, and its proper place in the cosmos. Beginning with the ancient civilization worldviews of Earth held by Babylon & Egyptian, and tracing the evolution of human thought leading to how we know the Earth is round.
📃Here's an outline:
1:52 | Ancient Babylonian and Egyptian Earth Models
3:54 | Egyptian Sundials & The 24-hour Day
5:19 | Babylonian Astrologers and the Zodiac
7:59 | Supporting evidence for the Greek Geocentric Model
10:27 | Eratosthenes Measurement of Earth’s Circumference
13:04 | Ptolemy’s Epicycle Orbits of Planetary Motion
14:06 | The Copernican Heliocentric Model & Galileo’s Supporting Evidence
16:47 | Newtonian Gravity and the Oblate Spheroid Earth Model
19:51 | Einstein and the General Theory of Relativity
_
🔗References and Links Mentioned in Video:
1) “The Globe: How the Earth Became Round,” James Hannam (2023)
2) NASA's Scientific Visualization Studio:
svs.gsfc.nasa.gov
_
👍If you liked this video, subscribe to Dr. John’s YouTube channel: youtube.com/@DrJohnDev
🚨Follow Dr. John:
· X: twitter.com/drjohn_dev
Thanks for watching and as always,
Happy Learning!
🌌🌑🌎☀️🔍
------
Equipment & Tech I use:
🔦 Raleno Softbox Photography Lighting Kit
🎥 Sony a7 Full-Frame Mirrorless Digital Camera
🎬 DaVinci Resolve 19
🎨 Blender 3.6
📈 Manim Community v0.18.1
🎤 Fifine Microphone
Unless indicated otherwise, all drawings, pictures, animations, script, problems, derivations, and videography in this video are creations, property, and copyrighted material of drjohn.dev.
