Answer:neutron
Explanation:
Because it is similar to the motor neurons
Its 237 years not 51.9. It because of the inverse squares law
It is moving at a constant velocity at C
They radiate heat, and the moving parts create friction
I'm assuming by the phrasing of your question that you are looking for examples of simple machines that are not wedges.
Well, there are five other simple machines. There is a pulley, lever, screw, wheel and axle, and an inclined plane.
Hope that helped you!