The Bloom Box: a power plant for the home

The Bloom Box: a power plant for the home

Those two blocks can power the average high-consumption American home -- one block can power the average European home. At least that's the claim being made by K.R. Sridhar, founder of Bloom Energy, on 60 Minutes last night. The original technology comes from an oxygen generator meant for a scrapped NASA Mars program that's been converted, with the help of an estimated $400 million in private funding, into a fuel cell. Bloom's design feeds oxygen into one side of a cell while fuel (natural gas, bio gas from landfill waste, solar, etc) is supplied to the other side to provide the chemical reaction required for power. The cells themselves are inexpensive ceramic disks painted with a secret green "ink" on one side and a black "ink" on the other. The disks are separated by a cheap metal alloy, instead of more precious metals like platinum, and stacked into a cube of varying capabilities -- a stack of 64 can power a small business like Starbucks.

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Night Biking Gadget: Mobile Laser Lane for Safer Cycling | Designs & Ideas on Dornob

Night Biking Gadget: Mobile Laser Lane for Safer Cycling - Designs

Just about everyone agrees that bicycling is an environmentally friendly way to get to and from work, yet not many of us actually commute this way. A large part of the reason for this lack of bike commuters is the safety issue. Any cyclist who’s ever had a close call with a car knows that riding on a street with no bike lane can be a bit scary. But installing bike lanes is prohibitively expensive, and many cities simply can’t afford the cost of adding these life-saving safety features to their streets.

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