When a current passes between two electrodes—one thinner than the other—it creates a wind in the air between. If enough voltage is applied, the resulting wind can produce a thrust without the help of motors or fuel.
Engineering
Apr 3, 2013
35
0
(PhysOrg.com) -- If humans ever create a lunar base, one of the biggest challenges will be figuring out how to breathe. Transporting oxygen to the moon is extremely expensive, so for the past several years NASA has been looking ...
Physicists at Paderborn University have used complex computer simulations to develop a new design for significantly more efficient solar cells than previously available. A thin layer of organic material, known as tetracene, ...
Condensed Matter
Feb 20, 2024
0
188
Global warming and affordable housing are two dominant topics of public debate. Climate protection is achieved by reducing emissions of the greenhouse gas carbon dioxide (CO2). Housing is generated through more housing being ...
Materials Science
Nov 9, 2021
0
62
Even though new hydropower dam developments are intended to provide green energy, they can drown areas that are rich in plant and animal species. But this kind of collateral damage can be limited by strategic site selection, ...
Environment
Jan 14, 2021
1
12
American household Christmas lights, a favorite holiday tradition, use up more electricity than some poorer countries—such as El Salvador or Ethiopia—do in a year.
Energy & Green Tech
Dec 23, 2015
85
4450
Using a simple solar cell and a photo anode made of a metal oxide, HZB and TU Delft scientists have successfully stored nearly five percent of solar energy chemically in the form of hydrogen. This is a major feat as the ...
Materials Science
Jul 29, 2013
12
1
(Phys.org) —Look, it's a hooded scooter. No, it's a trike house. No, it's a, well, it's a concept. The category-challenged debut of the Toyota i-Road will nonetheless attract a number of interested viewers at this week's ...
(Phys.org)—Electrical engineer and entrepreneur Louis Michaud's AVEtec company has received funding from PayPal cofounder Peter Thiel's Breakout Labs program to build an experimental Atmosphere Vortex Engine (AVE). The ...
There were cheers around Germany when Chancellor Angela Merkel announced last year, in the wake of the Fukushima disaster in Japan, a swift end to nuclear power in favor of renewable energy sources like wind and solar.
Energy & Green Tech
Oct 15, 2012
38
0
The watt (pronounced /ˈwɒt/ wot; symbol: W) is a derived unit of power in the International System of Units (SI), named after the Scottish engineer James Watt (1736–1819). The unit, defined as one joule per second, measures the rate of energy conversion.
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