Popular Science: Inventions of the Year
A Zero-Emissions Moto-Unicycle
The Uno accelerates with a
simple lean and turns like a street bike on side-by-side wheels
A Multi-Rotor Wind Turbine
Doug Selsam's Sky Serpant
uses an array of small rotors to catch more wind for less money
A Lifesaving Beacon for Miners
Russell Breeding finds lost
miners with the same tech found in guided missiles and the Nintendo Wii
Sealed-up suits for divers in
dirty seas
A More Natural Artificial Foot
Jerome Rifkin's K3 Promoter mimics
the jointed motion of a real foot for easier walking
A Living Air Filter
These filters use plants and
fans to clear the air of toxic chemicals
A Rocket Engine for the Masses
An off-the-shelf powerplant for
the burgeoning private space industry
A Homebuilt Tumor-Killer
This machine uses radio waves
and nanoparticles to zap cancerous tumors (
A Better Bridge Beam
John Hillman put a concrete arch
inside a plastic case to build stronger, longer-lasting bridges
A Steam Engine for Your Car
This engine uses superhot
steam to make a cleaner, more efficient car
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