Automobiles

Tata Motors hopes to release its compressed-air car in India by August. Larry Greenemeier reports

Sprawling metropolitan areas like Merriam, Kans., face fundamental challenges from global warming and the end of easy oil

The U.S. government aims to improve energy production from renewables to oil, but what does that mean in practice?

The tricky thing about the wheel is not conceiving of a cylinder rolling on its edge. It's figuring out how to connect a stable, stationary platform to that cylinder

Leaping lizards are helping scientists build more stable vehicles

Innovation and discovery as chronicled in past issues of Scientific American

How their plans stack up

The third annual ARPA-E summit showcases potentially transformative energy technologies

Material changes enable a new battery to store more electricity--and could boost the driving range of electric vehicles

New drivers with more "g-force events," like quick turns and sudden braking, had more crashes and near hits. Amy Kraft reports

Submerged specks

Tech industry giants unveil their latest plans at the annual CES in Las Vegas, as upstart companies try to make their mark