News tagged with electrical resistance

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Tiny heat engine may be world's smallest

(PhysOrg.com) -- Steam engines, combustion engines, and diesel engines are all different types of heat engines, which operate by converting heat energy into mechanical work. Although heat engines have existed ...

Feb 02, 2011 feature
4.7 / 5 (29) 10 | with audio podcast

Stanford physicists make new form of matter

(Phys.org) -- Within the exotic world of macroscopic quantum effects, where fluids flow uphill, wires conduct without electrical resistance and magnets levitate, there is an even stranger family of "unconventional" phenomena. ...

Jun 06, 2012
4.5 / 5 (21) 5 | with audio podcast

Engineers' nanoantennas improve infrared sensing

(Phys.org) —A team of University of Pennsylvania engineers has used a pattern of nanoantennas to develop a new way of turning infrared light into mechanical action, opening the door to more sensitive infrared ...

May 20, 2013
5 / 5 (5) 0 | with audio podcast