Tidal power

British car and driver break the sound barrier

Not only are offshore winds stronger but landlubbers have fewer objections to turbines almost invisible from the coast

New technology would enable turbine tethered to the seabed to harvest energy

Companies and governments are counting on underwater turbines, submerged "wind" farms, and wave-riding electrical generators to use ocean turbulence to keep the lights on

Radio-frequency identification tags label all kinds of inventoried goods and speed commuters through toll plazas. Now tiny RFID components are being developed with a rather different aim: thwarting counterfeiters

Nanosize machines need still tinier power plants

Nazi-era weapons lead to fuel-stingy aircraft engines

New Jersey-based NRG Energy applies to build the first new nuclear power plant in the U.S. in more than 30 years