Amid the recent economic downturn, demand in the U.S. is rising for small wind turbines to power people's homes. The American Wind Energy Association says sales of such turbines rose 15 percent in 2009. One man in Florida is generating his own power...
This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan...
This is scientific Americans 60 Second Science. I'm Steve Mirskey. Got a minute? The lure of gold can be electric to some people even though the element is chemically inert on the large scale. But the researchers from Georgia Tech report that down at...
[00:02.05]Module7 ENERGY UNIT2 So do I. [00:08.18]1 Listen and read.Then say. [00:12.92]Zhang Hai's father was looking very unhappy. [00:17.07]He was holding something in his hand [00:19.32]and shaking his head. [00:21.48]Feifei's father saw him and...
By Robert Berger Jerusalem 17 February 2008 Israel says it plans to continue crippling sanctions on the Hamas-ruled Gaza Strip, despite international opposition. The announcement was made as three Palestinian gunmen and a civilian were killed in Isra...
04 Electricity The modern age is an age of electricity. People are so used to electric lights, radio, televisions, and telephones that it is hard to imagine what life would be like without them. When there is a power failure, people grope about in f...
Section 26 Electricity If we try to think of the most important inventions, electricity will surely be on the list. For the last 100 years, it has played an important part in the development of the mo...
AGRICULTURE REPORT - Using Water to Produce Electricity By Gary Garriott Broadcast: Tuesday, May 04, 2004 This is the VOA Special English Agriculture Report. The power of flowing water can be used to...
The modern age is an age of electricity. People are so used to electric lights, radio, televisions, and telephones that it is hard to imagine what life would be like without them. When there is a powe...
The modern age is an age of electricity. People are so used to electric lights, radio, televisions, and telephones that it is hard to imagine what life would be like without them. When there is a powe...
