Hybrid Cars -- Pros and Cons

If you listen to the makers, hybrid cars are the best invention since sliced bread. While there are many reasons to buy a hybrid car, including a new tax incentive for US owners, it helps to have a good understanding ...

Jan 19, 2006 3.6 / 5 (1008) 1 feature

Greenhouse theory smashed by biggest stone

A new theory to explain global warming was revealed at a meeting at the University of Leicester (UK) and is being considered for publication in the journal "Science First Hand". The controversial theory has ...

Mar 14, 2006 2.8 / 5 (1073) 0

Too much homework can be counterproductive

Instead of improving educational achievement in countries around the world, increases in homework may actually undercut teaching effectiveness and worsen disparities in student learning, according to two Penn State researchers. Most tea ...

May 31, 2005 4.2 / 5 (555) 0