My Dark Beam Ice Cube Torch
Wednesday, January 5, 2011 - 05:41
in Physics & Chemistry
How does an electrical torch or flashlight work? According to the usual description, the lamp inside produces light, this light is shone on the objects we desire to see, partially reflected from their surfaces, and finally some of that light is captured by our eyes. This is not wrong, but it somewhat distorts the fundamentals of visual perception, which is not about perceiving light but about perceiving differences. read more
