Exploring the Ancient Science: How the Greeks Knew That the Earth Is Spherical

In this informative video, we delve into the ancient science of the Greeks and explore how they knew that the Earth is spherical. With clear explanations and engaging visuals, we take a journey through history to uncover the evidence and reasoning that led the Greeks to this groundbreaking discovery. By the end of this video, you'll have a solid understanding of how the Greeks used observation, mathematical calculations, and logical reasoning to conclude that the Earth is indeed a sphere. Whether you're a student of science or simply interested in learning more about the history of discovery, this video is for you. Don't miss out on the opportunity to expand your knowledge and master this essential learning competency. Remember to like, comment, and share this video with others who are interested in exploring the ancient science and philosophy of the Greeks

Answer Key
1. D. sphere
2. C. oblate spheroid
3. C. Eratosthenes
4. A. 250 000 stadia
5. A. 40 000 kilometers
6. B. lunar eclipse
7. B. farther away from the horizon
8. D. It will become smaller and smaller until it disappears.

[barneyhall]

The answer to question 7, the position of the North Star as you move away from the Equator, depends on whether you travel north or south.
If you travel north, the answer is, B. farther away from the horizon,
but,
if you travel south, the answer is, D. It disappears completely.