A redshift is when light or other electromagnetic radiation from an object moves away from the observer.
Your eyes don’t change color, they only reflect the colours around them in particular if they are light coloured eyes. My eyes are blue-grey with a green heterachromia. They are very sensitive to light and dust so they get red easily which makes the eye color appear a brighter blue. If I wear green, the appear more green in color, when I am sunburned they appear more turquoise, etc. But when I wear white or don’t have a shirt on, they look their true blue-grey.
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petals of a falling flower are exerting force of gravity
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uncorrected mistakes may cause as cancer or serious bad things.
