On this day in physics: 27 February 1961- UNIVAC Solid State 90, the world's first mobile computer was loaded into a van.
Word of the Day- Electron Shells- As electrons orbit an atom, they do not simply swarm in a sphere equidistant from the nucleus. As it turns out, there are different radii which the electrons tend to form in depending on how many electrons there are surrounding the nucleus. The first shell has two electrons, then the next has 6, the next has 10, then 14, then 18. Each of the atoms on the periodic table has one more electron and proton than the last, and they fill each of the shells in order.
Quote of the Day: "Don't tell me the sky is the limit when there are footprints on the Moon." - Anonymous
Keywords: Electron, Shells, UNIVAC, Computer
