Electromagnetism, the science that deals with the phenomena that result from the relationship between electricity and magnetism. The term is also used to refer to the electromagnetic phenomena themselves.
I have heard that carbon monoxide is extremely poisonous. Can you explain why?
That's one seriously big number, and technically Amedeo Avogadro didn't even come up with it. So how did the Italian chemist make such an indelible (numerical) mark on the wonderful world of chemistry?