News tagged with scrap iron
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Search results for scrap iron
No future without scarce metals
It is not just in laptop computers, mobile telephones and LED screens that scarce metals are to be found but also in solar cells, batteries for mobile technologies and many other similar applications. The ...
Jan 31, 2012 |
4.5 / 5 (2) |
2
Hidden hunger from wildlife loss
How do you balance the need for biodiversity conservation and human health? For Christopher Golden, '05, a Post-Doctoral Fellow in Harvard University Center for the Environment, that question is at the core ...
Nov 21, 2011 |
5 / 5 (1) |
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High toxic levels found at school, market neighboring informal e-waste salvage site in Africa
Tests at a school beside an informal electronic waste salvage site in Ghana's capital Accra reveal contamination due to lead, cadmium and other health-threatening pollutants over 50 times higher than risk-free ...
Oct 30, 2011 |
not rated yet |
1
An 'eye' that measures liquid steel temperatures
Contact-free measurement of the temperature of molten steel boosts the productivity of arc furnaces. That’s why Siemens has developed a system called Simetal RCB Temp, which consists of an optical sensor ...
Aug 22, 2011 |
5 / 5 (1) |
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Kenyan's mission: solar lamps to empower the poor
Evans Wadongo is not yet 25 but has already changed the lives of tens of thousands of his fellow Kenyans living in poor rural communities by supplying them with solar lamps.
Technology / Energy & Green Tech
Jan 27, 2011 |
5 / 5 (7) |
5
China closes factories as green deadline looms
China, facing the risk of embarrassment if it misses a looming environmental deadline, has ordered thousands of companies to close high-polluting plants as its leadership vies to retool economic growth.
Aug 22, 2010 |
4.5 / 5 (19) |
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Greening the Moon and Mars
Future missions to the Moon or Mars could use plants as bio-harvesters to extract valuable elements from the alien soils.
Space & Earth / Space Exploration
Jul 30, 2010 |
4.5 / 5 (12) |
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Student uses pedal power to create novel machine
An innovative bicycle-powered water pump, created by a student at the University of Sheffield, has proved a huge success and is now in regular production in Guatemala, transforming the lives of rural residents.
May 28, 2010 |
4.5 / 5 (8) |
3
Roots meshed in waste materials could clean dirty water
Plant roots enmeshed in layers of discarded materials inside upright pipes can purify dirty water from a washing machine, making it fit for growing vegetables and flushing toilets, according to Penn State ...
May 05, 2010 |
5 / 5 (4) |
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MPAA boss Glickman says goodbye to Hollywood
(AP) -- Dan Glickman spent his Hollywood years aiming to improve the ratings system that tells Americans what to expect in a movie - and fighting pirates.
Mar 16, 2010 |
not rated yet |
0
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