Standing inside a rotating space station, your feet have a greater linear speed and a greater centripetal acceleration than your head. We say there is a difference in g's from your head to your feet, and this difference can be quite uncomfortable. Studies show, however, that a difference of 1/100 g across the human body produces no discomfort. If you are 1.7 m tall, what should be the radius of the space station (in m) compared to your height so that the difference in acceleration between your head and feet is only 1/100 g?

this means that the temperature of both substances will be equal

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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