Feature Stories, Weblog & Reports

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 feature
3.6 / 5 (1012) 1

Electronic tattoo display runs on blood

Jim Mielke's wireless blood-fueled display is a true merging of technology and body art. At the recent Greener Gadgets Design Competition, the engineer demonstrated a subcutaneously implanted touch-screen ...

Feb 21, 2008 weblog
4.5 / 5 (465) 50

Why a hydrogen economy doesn't make sense

In a recent study, fuel cell expert Ulf Bossel explains that a hydrogen economy is a wasteful economy. The large amount of energy required to isolate hydrogen from natural compounds (water, natural gas, biomass), ...

Dec 11, 2006 feature
4.1 / 5 (465) 13

For Better Nanowires, Just Add Diamond

Among the positive characteristics of diamond, such as its beauty and unsurpassed hardness, are less well known properties that make it a valuable material in the electronics industry. Now, according to two scientists at ...

Nov 15, 2006 feature
4.2 / 5 (435) 0

Before the Big Bang: A Twin Universe?

Until very recently, asking what happened at or before the Big Bang was considered by physicists to be a religious question. General relativity theory just doesn’t go there – at T=0, it spews out zeros, ...

Apr 09, 2008 feature
4.3 / 5 (290) 33