A photon is a sub atomic particle is a single enery packet of light As it has no mass it can travel at the speed of light (since it is light) and are created when an electron makes a quantum leap...
The least massive brown dwarf known is OTS 44. It is only 15 times the mass of Jupiter. The least massive star is a red dwarf called Wolf 424B, which is in the constellation Virgo. Its co-ordinates...
Kinetic energy = 1/2 (mass) x (speed)2 Mass = 2 x Kinetic Energy / V2 That's not a very satisfying answer yet, because now we need to know what the energy is. The early quantum guys ... Planck,...