Columbia University

Engineering ways to turn waste into energy

(PhysOrg.com) -- In recent years, Nickolas Themelis has devoted his career to the management of household trash -- a fitting occupation for a professor originally from Athens, where the ancient Greeks created ...

Nov 23, 2010
2.5 / 5 (2) 0

Volcanoes have shifted Asian rainfall

Scientists have long known that large volcanic explosions can affect the weather by spewing particles that block solar energy and cool the air. Some suspect that extended "volcanic winters" from gigantic blowups ...

Nov 03, 2010
4.9 / 5 (8) 16 | with audio podcast

Professor discovers genetic basis for hair loss

"Physician, heal thyself." That oft-quoted proverb describes the ground-breaking effort by Columbia professor Angela Christiano to discover the cause of the second most common form of hair loss after male-pattern baldness.

Oct 15, 2010
5 / 5 (5) 1

Dental surgeon engineers tissue replacement

(PhysOrg.com) -- Earlier this year in a report in The Lancet, Columbia professor Jeremy Mao and his team showed that a joint could be grown with a host’s own stem cells, presenting a potential alternative for the 40 ...

Oct 15, 2010
4.2 / 5 (5) 0

Study adds new clue to how last ice age ended

As the last ice age was ending, about 13,000 years ago, a final blast of cold hit Europe, and for a thousand years or more, it felt like the ice age had returned. But oddly, despite bitter cold winters in ...

Sep 08, 2010
4.4 / 5 (16) 5 | with audio podcast