Scientists Make Oxygen Out of Moon Rock

(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 ...

Smart site selection can make hydropower greener

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, ...

The best of two worlds: Solar hydrogen production breakthrough

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 ...

Toyota's i-Road to debut at the Geneva Motor Show

(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 ...

Germans face hefty bill to end nuclear power (Update 2)

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.

Hitachi unveils motor without 'rare earths'

Japanese high-tech firm Hitachi Wednesday unveiled an electric motor that does not use "rare earths", aiming to cut costs and reduce dependence on imports of the scarce minerals from China.

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Watt

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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