Future flexible lung belts could harness energy from the rhythm of your breathing, powering pacemakers or other implantable medical devices.
Nanotechnologists have found a way to integrate flexible piezoelectric materials with a stretchy silicone rubber, fashioning materials that can withstand lots of elastic strain while also harvesting energy from motion. Other piezoelectrics are not so elastic and can crack under pressure. Piezoelectrics, you’ll recall, turn kinetic energy into electrical energy.
A Canadian engineering student achieved sustained flight in a human-powered ornithopter for the first time in August, and has just filed a claim for a world record, according to the University of Toronto.
The Snowbird is the first contraption of its kind to allow humans to fly like birds, by flapping massive wings to create lift.
Wind, solar, tidal-- all are battling for the renewable energy crown. But what about the six billion highly efficient short-stroke engines in our midst? What about us?
By Popular Science StaffPosted 03.09.2009 at 4:55 pm 1 Comment
Riding your bike to work? That's old school. Human powered transport options are expanding dramatically! In this episode of Cocktail Party Science, host Chuck Cage sits down with Bruce Grierson, author of Power From the People in the current issue of Popular Science magazine, taking on the concepts of negawatts, bullet bikes, and cars you can row.
Download the episode here, or subscribe to the iTunes feed.
Wind, solar, tidal—all are battling for the renewable-energy crown, but what about the six billion highly efficient short-stroke engines in our midst? What about us?
By Bruce GriersonPosted 03.06.2009 at 10:58 am 8 Comments
Cave Junction, Oregon, was once, long ago, the center of a gold rush boom that, like so many booms, ultimately consumed its host. Prospectors mined the land around the towns in an ever-tightening circle, until the only gold left was below the saloons, assayers and burlesque halls. Those fell next. The towns were mined right out from under themselves—with no trace left of the old frontier burgs but scars in the earth.