If I stand in a small room and rotate a laserpointer 360 degrees in 1 second, the dot of light on the walls covers a distance of 30 metres, ie 30 metres per second. If I then go into a bigger room and do the same thing, the dot of light on the wall covers a greater distance of 100 metres, ie 100 metres per second. If the speed of light is 300 million metres per second, and I stood in a room who's walls were 47'746'483 metres away in all directions and rotated the laserpointer 360 degrees in 1 second, would the dot of light on the wall break the speed of light? , ie, would the dot on the wall travel more than 300'000'000 metres per second?
(maths; circumference of a cirle is 'diameter x pi'. If circumference is 300'000'000 then 300'000'000 divided by pi, ie, 3.14159265 = diameter of 95492965.964254. Diameter is 2 x radius, so radius is 95492965.964254/2 = 47746482.982)
2006-07-04
13:11:34
·
20 answers
·
asked by
Anonymous
in
Other - Science