What analogy is used to describe the layered approach of the Cosmic Distance Ladder?

Answer

Gauging distance across a continent using walking, odometer, and flight navigation.

The text compares determining cosmic distances to gauging the distance across a continent, where different tools (walking, odometer, flight navigation) are used for different scales, mirroring the layered approach of the Cosmic Distance Ladder.

What analogy is used to describe the layered approach of the Cosmic Distance Ladder?

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How Do We Measure Distance In The Universe? - YouTube

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