piezo-electric

I find this concept very interesting along with the piezo-electric sidewalks proposed to power street lights.

Generate Energy with Fluxxlab’s ‘Revolution’ Revolving Door | Inhabitat 2008

But perhaps the greatest untapped sources of piezo-electric energy are freeways and busy roads.

The Future of Energy 2009

If piezo-electric mats were installed under the busiest sections, the thousands of tons of vehicles passing over each day would generate massive amounts of electricity for the city's use.

The Future of Energy 2009

For example, a train station in Japan installed piezo-electric equipment in the ground, so that the foot traffic of those walking through the train station generates electricity (turnstiles at train, subway and ferry stations, ballparks and amusement parks can also generate electricity).

The Future of Energy 2009

One is Alberto Villarreal's BrightWalk, described as a “shoe that incorporates piezo-electric transducers and electroluminescent polymers to generate light while the user is walking or running.”

Archive 2007-05-01 2007

Another use of a free, wasted byproduct to generate electricity is piezo-electric energy.

The Future of Energy 2009

One is Alberto Villarreal's BrightWalk, described as a “shoe that incorporates piezo-electric transducers and electroluminescent polymers to generate light while the user is walking or running.”

The Piezo Array 2007

Other groups are experimenting with piezo-electric materials and wings that extend in length.

Big Flap Over Future Flight 2004

[2] The piezo-electric property of quartz has recentlyhad an important application; it has been utilized by P. Langevin in the production of elastic waves of high frequency (beyond sound) sent out in water with the aim of detecting submarine obstacles.

Pierre Curie 1923

The second part of the work, and much more difficult to realize experimentally, concerned the compression resulting in piezo-electric crystals when they are exposed to the action of an electric field.

Pierre Curie 1923