Light doesn't have mass, as it is described by modern physics:Brian Lee wrote:What was that about light not having mass? There's the whole wave/particle duality thing to bear in mind, and light can and does exert *some* force on certain objects. There's a constant stream of particles coming from the sun called the Solar Wind. They are a part of the EM (that's electro-magnetic spectrum) just as visible light is yes?
And what about the rest of the band? There's a LOT more happening than just that little bit between 400 & 700nm. Very interestink!
http://www.usatoday.com/weather/resourc ... onmass.htm
The phenomenon from the sun known as "solar wind" is not EM radiation, but rather the parts of the suns corona that are too hot and energetic for gravity to hold. These atoms blow off at a speed of around 400km/s, far slower than EM radiation. It really is a "wind" in the sense that they are actual particles blown off of the sun, with a composition of such gasses as helium, neon, and argon.