News tagged with friction

Magnetic fields can send particles to infinity

Researchers from the Complutense University of Madrid (UCM, Spain) have mathematically shown that particles charged in a magnetic field can escape into infinity without ever stopping. One of the conditions ...

Apr 17, 2012
4.1 / 5 (27) 42 | with audio podcast

Increasing rainfall may affect winds: study

(PhysOrg.com) -- Falling raindrops produce friction as they drop through the atmosphere to the ground, and this dissipates the kinetic energy, converting it into diffuse heat. Now researchers in the US have ...

Feb 24, 2012 report
4.8 / 5 (8) 4 | with audio podcast

Black hole jets

(PhysOrg.com) -- Black holes are irresistible sinks for matter and energy. They are so dense that not even light can escape from their gravitational clutches. Massive black holes (equal to millions or even ...

Jan 16, 2012
4.6 / 5 (7) 6 | with audio podcast

On the edge of friction

(PhysOrg.com) -- The problem exists on both a large and a small scale, and it even bothered the ancient Egyptians. However, although physicists have long had a good understanding of friction in things like ...

Dec 20, 2011
4.7 / 5 (6) 3 | with audio podcast

Bobsled runs -- fast and yet safe

Lightning fast, the sled bolts down the icy run. Will the team make it to the finish faster than their competitors? The tension in the crowd depends partly on the run itself: the faster the sleds can travel ...

Dec 01, 2011
4 / 5 (1) 1