Changes

He called it an [[antielectron]] or [[POSITRON]]. Of course, the same would be true for any existing particle ([[proton]] and [[antiproton]], [[neutron]] and [[antineutron]]).

He called it an [[antielectron]] or [[POSITRON]]. Of course, the same would be true for any existing particle ([[proton]] and [[antiproton]], [[neutron]] and [[antineutron]]).

About 100 [[year]]s ago, a [[physicist]] named [[Albert Einstein]] discovered something very important: he said that matter is a very concentrated form of [[energy]]. So if energy and matter are the same thing, you can create matter with energy and you can create energy with matter.

[[Relativity]] teaches that mass is a very concentrated form of [[energy]]. So if energy and matter are the same thing, you can create matter with energy and you can create energy with matter.

Of course, to make matter a lot of it is needed, and very much concentrated in space. Particles and antiparticles are always created together, out of energy.   

Of course, to make matter a lot of it is needed, and very much concentrated in space. Particles and antiparticles are always created together, out of energy.