"One frustration of solar energy is that although it's free, clean, and inexhaustible, it's a major challenge to harvest efficiently. Consider what happens when photons of sunlight hit a solar cell: They strike electrons in semiconductor material and send them on their way as an electric current
Posted bySteveon06.30.2006inEnergy, Green Building, Sustainable Tech
A new project in a southern Indian city is installing solar powered street lights and traffic lights, to reduce energy costs for the city. The project includes 25 street lights, 20 street light control systems, five traffic signals, 10 cats' eyes and 50 road studs. The project is expected to cost
Posted bySteveon06.29.2006inEnergy, Society
MedGadget has a recent article about a new type of protective clothing for doctors and other medical staff that acts as a virus filter, while still remaining breathable. The fabric is a 3-layer polymer, and protects against bacteria and viruses as small as 0.027 microns, including the H5N1 Avian
Posted bySteveon06.28.2006inSociety, Sustainable Tech
"Nanosolar, a startup in Palo Alto, CA, announced plans to build a production facility with the capacity to make enough solar cells annually to generate 430 megawatts. This output would represent a substantial portion of the worldwide production of solar energy. According to Nanosolar's CEO Mart
Posted bySteveon06.27.2006inEconomics, Energy, Sustainable Tech
3 French design students have designed a prototype electric Audi sports car. The R-Zero has batteries contained in a center tunnel along the chassis, which powers electric motors inside the wheels. The vehicle is designed as a sports car, and would be impractical for most usage, as it produces an
Posted bySteveon06.27.2006inTransportation
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