Speed of light?
Astronaut to travel in vehicles. 90% of the speed of light with respect to the earth. flashlight shines into the back of the boat. Is the speed of light, light is measured by observing what the earth.
Speed "cry" that observers will see flashlight does not move. No. It's really trying to swaddle your brain around that. If the astronaut is shot because of rock out of his cannon spacecraft speed of spacecraft that will certainly. Affect the perceived speed of a rock them to plunder the earth.
Flashlight Frog
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