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Math

Numbers, by Any Other Name

Most Westerners have come to represent numbers with Hindu-Arabic characters. But many cultures don’t—and historically, a whole range of alternatives have been used. View many at this site, which was developed by Archimedes’ Laboratory, a group that specializes in creating puzzles and brain teasers. Go to: http://www.archimedes-lab.org/numeral.html

Humans

From the October 30, 1937, issue

A photographer captures the coming of winter, motion pictures show how cancer spreads through the blood, and engineers get new oil from old Pennsylvania wells.

Health & Medicine

Plugging Leaks: Manipulating receptors may impede sepsis

Manipulation of signaling proteins on blood vessels may help combat sepsis, an often fatal condition.