Scientists turn dents into smart bumps

Due to a phenomenon called the shape memory effect (SME), certain "memory metals" can be distorted and then brought back to their original shape by a simple temperature change. While a one-way memory effect ...

Aug 23, 2006 4.4 / 5 (52) 0 feature

Detector can count atom by atom

More than 80 years have passed since Louis de Broglie discovered that matter can act like a wave as well as a particle. With advances in technology, scientists have recently begun exploiting this strange property ...

Aug 10, 2006 4.5 / 5 (53) 0 feature

The Physics of Friendship

By comparing people to mobile particles randomly bouncing off each other, scientists have developed a new model for social networks. The model fits with empirical data to naturally reproduce the community ...

Mar 10, 2006 4.7 / 5 (164) 1 feature

Tick Tock: Who Needs an Atomic Clock?

“Last year the Nobel Prize recognized the significance of this field with John Hall and Theodor Hänsch,” says Chris Oates of studying optical atomic clocks. “There are a lot of new ideas coming out, ...

Mar 08, 2006 4.5 / 5 (24) 0 feature

Hitching a Ride Out of a Gluttonous Black Hole

“Ever since Stephen Hawking showed that black holes evaporate,” says Seth Lloyd, an MIT physicist, “people have wondered about the stuff that comes out of them. Is it just garbage, or is it something ...

Feb 25, 2006 4.5 / 5 (85) 0 feature