We know that measuring the speed of light with an Arduino is possible. It’s just that the implementation is hard. [Udo] hit upon the idea of pulsing a laser pointer and measuring the time of the ...

He concluded that light takes time to travel and we now know this is at a constant speed of 299,792,458 m/s. This clip is from the series Wonders of the Universe. This clip could be used as part ...

Michelson and Morley set out to detect it by measuring the speed of light when light beams traveled with, and perpendicular to, the motion of the Earth. They expected light to show the effects of ...

A distant observer stood 200 metres away (measured using a 20 m tape measure or trundle ... distance as the light because sound travels much more slowly than light. The speed of sound can be ...