Relativity

Try to avoid use of relative terms like good, new etc. At some point, these terms doesn't make (right) sense, e.g. in longer run. These terms can make sense if used with proper relative base.

Two kinds

There are two kinds of people, those who do the work and those who take the credit. Try to be in the first group; there is less competition there. -- Indira Gandi

Free software stickers

http://raro.oreto.inf-cr.uclm.es/apps/stickers/

Editing wiki(pedia) pages is fun

If you haven't started yet, my suggestion is: start editing page related to your hometown and you will get started.

1 = -1

1 = sqrt 1 = sqrt (-1 * -1) = sqrt -1 * sqrt -1 = (sqrt -1) ^ 2 = -1