Physics
-
Physics
Capping the length of extra dimensions
The existence of a small, elderly black hole places a new upper limit on the length of any extra dimension, a new study suggests.
By Ron Cowen -
Physics
Mass mismatch makes mystery for proton’s strange cousin
An exotic cousin of the proton is caught in action again. But its measured mass doesn’t match previous results.
-
Physics
Glass beads cluster as they flow
High-speed camera catches liquidlike behavior in a stream of granular material.
-
Physics
Martian lightning
The Red Planet’s dust devils charge up particles, providing first direct evidence of this type of electrical discharge on Mars.
-
Physics
Microswimmers make a splash
Researchers study secrets of microbes' locomotion and how to mimic that movement.
-
Computing
Asia: One reason America can’t afford to jettison good teachers
Asia appears to prize science and tech education far more than America does, and the result may be a waning of the West's economic and entrepreneurial dominance.
By Janet Raloff -
Tech
Proposed quantum motor runs with a kick
Scientists suggest a way to put ultracold atoms to work.
-
Chemistry
Laser makes uphill battle easier
Researchers have used a femtosecond laser to etch tiny channels into metal plates, prompting liquid to flow uphill.
-
Physics
Friction gives snakes a smooth slither
Combination of friction and push propels snakes forward on flat surfaces.