UPS Trucks Don't Turn Left, Saving Them 10 Million Gallons of Gas/Year.
The Logistics and Economics of Trying to Cut Your Electric Bill By Building a Hydroelectric Dam in Your Bathtub.
ICYMI, Tuesday's links are here, and include a cube built out of one-way mirrors, vintage accordion groupies, and the best states for surviving the zombie apocalypse.
the obvious question on the bath tub power generator is - why depend on gravity? Run the water directly from the faucet to the generator - that provides much more force than gravity.
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