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Slow Light


Light has mass. This fact has two consequences. Firstly, it means that it also has weight. Secondly, that it exerts pressure. The acceleration of a foton that falls on matter, like wind in a sail, depends on its mass and its energy. In this state of things, the radiation given out by our sun, at the distance that exists between us and it (144,109 km), weighs 100 micrograms per square meter.

Victor Puntes.

VIdeos:
2000 · 7 very short videos with variable lenghts