If the car doesn’t start, you are too drunk to drive. That is the premise behind a $600 sensor that can be installed in a steering wheel or in gloves and will test a driver’s skin to determine alcohol consumption.

Scientists are scanning brain activity in the hopes of catching sight of the physical mechanisms that determine whether you prefer Coke over Pepsi.

Stuck in traffic and sick of Howard Stern, you may soon be able to tune in to the music collection of the person in the car in front of you.

Psychologists and salesmen call it the “chameleon effect”: People are perceived as more honest and likeable if they subtly mimic the body language of the person they’re speaking with.

Edison’s early movie projector, Tesla’s alternating ­current, Ferris’s first massive steel wheel - we’ve come a long way from the scientific and technological marvels that drew huge crowds to Chicago for the 1893 World’s Fair.

Toyota Motor Corp. aims to start selling robots that can help look after elderly people or serve tea to guests by 2010, the Asahi daily reported on Tuesday.