List Of Why Cant You Chane The Speed Of Light References. It's filled with elementary particles, rapidly popping in and out of existence. These particles create electromagnetic ripples along the way, the hypothesis goes, and could potentially cause variations in the speed of light.

Furthermore, there are no experiments (so far) where particles are observed to. Web the common experience of turning on a light switch certainly shows that light travels very quickly. This is how refraction occurs, but it's the photon's absolute speed in a vacuum that cannot change.)