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Author Question: Why is the Moon not completely invisible (it appears as a very deep red color) to the naked eye ... (Read 11 times)

armygirl

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on: Jul 27, 2018
Why is the Moon not completely invisible (it appears as a very deep red color) to the naked eye during a total lunar eclipse?
 
  What will be an ideal response?

Question 2

The singularity of a black hole is where general relativity predicts the density to become infinite.
 
  Indicate whether the statement is true or false


trog

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Reply #1 on: Jul 27, 2018
Answer to Question 1

The Moon shines through reflected light from the Sun and thus it becomes very dark during a lunar eclipse since the Moon lies within Earth's shadow at this time. However, some sunlight still gets through because it is bent (similar to the way a lens works) by Earth's atmosphere. We see the reflection of this faint light and thus the Moon is not completely invisible. (The bending of light is called refraction and the effect is strongest at long wavelengths. Thus it is most pronounced for red light and the eclipsed Moon appears dark red.)

Answer to Question 2

TRUE


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