1
Flat Earth Q&A / Re: What is the value of the speed of light?
« on: April 01, 2007, 06:59:24 PM »
As I remember from physics class, the first rough calculations on the speed of light were done with a spinning mirror.
They focused light down to as precise a beam as possible, and shined it on a spinning wheel covered in mirrors. The wheel made the light beam leave the room and aimed it at a tower a few miles away, the tower had a mirror that aimed the light beam back to the source. They then varied the speed of the mirror until they had pulses that went out to the tower, and managed to catch the rotating mirror on the way back in. This gave them a rough but close enough answer at the time for the speed of light.
They focused light down to as precise a beam as possible, and shined it on a spinning wheel covered in mirrors. The wheel made the light beam leave the room and aimed it at a tower a few miles away, the tower had a mirror that aimed the light beam back to the source. They then varied the speed of the mirror until they had pulses that went out to the tower, and managed to catch the rotating mirror on the way back in. This gave them a rough but close enough answer at the time for the speed of light.
It was much appreciated. We can see something up there at a great altitude.
) to get you to go back to where you started and this will affect the travel time severly.
Really hoping to weed out the smart people with some of these questions.