hydraulics

Car-Powered Supermarket Check Outs

Metal plates under a supermarket's parking lot harness the power of passing cars

A supermarket in the UK is using a novel way of harnessing energy from their customers. Embedding their parking lot with weight-sensitive plates, cars impart kinetic energy as they pass through, which is then collected and used to power their cash registers.

When a car drives by, plates are depressed and the motion is passed along hydraulics to a generator, which produces 30kw of energy an hour. If one parking lot can power cash registers, imagine packing roads with this technology and how much energy can be recollected from all the world’s drivers?

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Dexterous New Prosthetic Hands

Researchers are developing mechanical mitts with better grip

No, we're still not up to the level of Luke's mechanical hand in Star Wars, but progress does seem to be accelerating. The i-LIMB, from Touch Bionics, debuted last year, and German researchers recently tested it against a new prototype, the Fluidhand. The researchers say both are more dexterous than the industry standard, given that the individual fingers of the mechanical hands can be controlled independently.

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Get Pumped

Pirouette the lawn mower. Ring in a home run. Lower the roof. Anything hydraulics can’t do?

Slideshow:
� Crop Circler� Dinger Ringer� Gear Lifter

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Braking News

The 2002 Mercedes SL500 convertible features the first brake-by-wire system.

With 302 horses at your disposal, you'd think that stopping the 2002 Mercedes SL500 convertible would be an issue. Not so.


The car features the first brake-by-wire system. Hit the brakes and a computer begins slowing you within a fraction of a second. The system also determines which wheels have the most traction and applies the brakes accordingly to prevent a skid.


And just in case it pulls a Windows 98 on you, hydraulics act as a backup. Available next spring; price not set.



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December 2009: Best of What's New

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