The United States's version of the Imperial system is based on an older British version. MaxPixel At press time, only three of the world's countries don't use the metric system: the United States, ...

When former Rhode Island senator and governor Lincoln Chafee formally jumped into the presidential race on Wednesday, he made a splash. There are good reasons to take Chafee’s bid seriously, but his ...

Mathematician and author, the Marquis de Condorcet (1743-1794) was an aristocrat who nevertheless embraced the early stage of the French Revolution. Even as the Jacobins hunted him down during the ...