- #1

John Richard

- 73

- 0

A question,

Suppose I place a rotating laser at the centre a circle so that the beam will hit the inner face of the circles circumference.

If the radius of the circle is one light second, then the circumference would be 2pi light seconds. (We can ignore the length of the laser source device)

If I now rotate the laser through 360 degrees in one second.

What will I see on the circles inner circumference?