by Zachariah » Thu Dec 22, 2011 3:39 pm
Radioactivity is the amount of radiation emitted. There are three types of radioactivity, Alpha, Beta and Gamma. Alpha radioactivity is caused helium atoms, travels very short distance and stopped by almost anything.
Beta radioactivity is caused by electrons and travels longer than alpha radiation and stopped by aliminium foil etc. Gamma travels the longest and can be stopped by a thick concrete. Radioactivity conversion is a free online calculator for converting metric units of radioactive decay.
“Radioactive particles that slam into the gold push out a shower of high-energy electrons. They pass through carbon nanotubes and pass into the lithium hydride from where they move into electrodes, allowing current to flow.”