The discovery of a molecule that stops stem cells from replicating could enhance the ability of stem cells to fight cancer and other diseases.

Environmentalists dream of energy-efficient cars that run on hydrogen, with tailpipes spewing out nothing more noxious than water vapor. Judging from the popularity of Toyota’s Prius hybrid — a kind of car with both an electric motor and a gasoline engine — a fuel-cell-powered all-electric car that gets equal or better mileage from hydrogen […]

Shoes have long been sensible. Now some are getting smart.
Smart enough, that is, to sense their environment electronically, calculate how best to perform in it, and then instantly alter their physical properties to adapt to that environment.

The secret in making virtual skin seem real is all to do with light. Dr Henrik Jensen of the University of California at San Diego found that light did not just bounce from surfaces such as marble and skin.