Archive: 12/21/2010

Preventing back back this shoveling season

Snowstorms are a time of excitement and wonder for a child: snowball fights, sledding and closed schools. For adults, it’s the dreaded shoveling season complete with aching backs, frozen fingers or worse.

Dec 21, 2010
not rated yet 1

How Earth's orbital shift shaped the Sahara

A change in the Earth’s orbit, many scientists believe, transformed the “Green Sahara” into what is now the largest desert on the planet. While scientists are still trying to find out if the ...

Dec 21, 2010
4.5 / 5 (20) 20 | with audio podcast