News tagged with friction

Engineers Assess Dawn's Reaction Wheel

(PhysOrg.com) -- Engineers are studying the reaction wheels on NASA's Dawn spacecraft after automatic sensors detected excess friction building up in one of them and powered it off early on the morning of ...

dateJun 30, 2010 in Space Exploration
shares0 comments 0

A crack in the case for supersolids

New experiments are casting doubt on previously reported observations of supersolid helium. In a paper appearing in the current issue of Physical Review Letters, John Reppy (Cornell University) presents research suggesting that p ...

dateJun 21, 2010 in General Physics
shares0 comments 0

Simple Robot Climbs Through Tubes (w/ Video)

Last week was the IEEE's International Conference on Robotics and Automation, held in Anchorage, Alaska. One of the most interesting robots was a simple -- and fast -- bot designed to climb easily through tubes.

dateMay 12, 2010 in Robotics weblog
shares0 comments 2

Washington state moves to ban copper in brake pads

(AP) -- When a driver hits the brakes, friction releases copper shavings that fall onto the road and are eventually washed into rivers, where environmentalists say the metal could pose a hazard to marine life - especially ...

dateApr 12, 2010 in Environment
shares0 comments 1