How Did Ancient Greeks Such as Aristotle Know That Earth

question 11

Multiple Choice

How did ancient Greeks such as Aristotle know that Earth is round?

• A) The shadow cast by Earth on the moon during an eclipse is the shape that would be expected if both Earth and the moon were spherical.
• B) By noting that ships drop below the horizon as they go out to sea.
• C) Travelers reported that, in northern lands, the noontime sun is lower in the sky.
• D) All of the above.
• E) Actually, the ancient Greeks thought that Earth is flat.

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Definitions:

Weights

Numeric values assigned to data points or features in statistical and machine learning models, usually to indicate their importance.

Correlation

A metric that demonstrates the degree to which multiple variables co-vary.

Kilograms

A unit of mass in the metric system equal to 1000 grams, commonly used worldwide for measuring weight.

Pounds

A unit of weight commonly used in the United States and the British imperial system, equivalent to 0.453592 kilograms.