- Fri Mar 12, 2004 1:20 pm
#4332
we all know that using a convex lens we can focus light at one point where heat can be produced. if we can produce lot of heat by doing the necessary and also change the point where it falls we can achieve something like laser gun.
so i ask how can we change the point(the point where the convex lens produces heat)to any distance.
so i ask how can we change the point(the point where the convex lens produces heat)to any distance.