Capping the length of extra dimensions | Science News


Science News is a nonprofit.

Help us keep you informed.


Capping the length of extra dimensions

Size and age of recently discovered black hole shrinks braneworld

6:53pm, July 7, 2009

Red alert: Scientists are shrinking branes.

A team of theoretical physicists and astronomers has calculated that any hidden extra dimension beyond our familiar three-dimensional space, a world known in physics parlance as a 3-brane, must be less than 3 micrometers. The researchers base their findings on the recent discovery of one of the smallest and oldest black holes ever found.

The new limit is less than half that of previous limits on the length of an extra

This article is only available to Science News subscribers. Already a subscriber? Log in now. Or subscribe today for full access.

Get Science News headlines by e-mail.

More from Science News

From the Nature Index Paid Content