New tests confirm that in a head-to-head collision, it's better to be in the big car.
The online bookseller delisted thousands of gay and lesbian titles from its site.
Mazda's CEO changes his tune, promising hybrids and EVs by 2015.
Some of the odder inventions demoed at the Computer-Human Interaction Conference.
Constant logging could help spot problems in kids.
The chip maker is pushing its products into smart phones.
If Planet X is out there in the icy reaches of the Solar System, we should see its affect on the orbital motion of the inner planets
Treat the links between scientific papers as a network and the changing communities that emerge reveal how scientific ideas evolve
Big Oil has a limited attention span for renewables.
The best of the rest from the physics arXiv this week