Occam's Razor-Whenever one can remove the impossible, what remains, however unlikely, (leads to) the truth. It can be used in my everyday life; for example, it can be used in multiple choice.

Rubin H. Fleet is important because, one, he flew a mail plane from New York to Washington, two, and maybe more important he started the plane company in San Diego called Consolidated. Consolidated later turned into Convair, later a Division of General Dynamics Corp.

DATUM is the last point where a missing thing was last seen or where they think, the thing is.

The Red Baron was red because he wanted it to stand out and be recognized when you are about to be blown to smithereens :)