American Institute of Physics

Mathematicians model heat flow in human tears

Mathematicians from the University of Delaware have created a new model of the fluid dynamics and heat flow in human tears. When people blink their eyes, a thin liquid film is spread across the surface of the eye.

Jun 05, 2012
5 / 5 (5) 2 | with audio podcast

Slip-and-slide power generators

Researchers from Vestfold University College in Norway have created a simple, efficient energy harvesting device that uses the motion of a single droplet to generate electrical power.

May 24, 2012
4.7 / 5 (3) 1

A nanoclutch for nanobots

Chinese researchers have designed and tested simulations of a "nanoclutch," a speed regulation tool for nanomotors.

May 24, 2012
5 / 5 (2) 0

Sound increases the efficiency of boiling

Scientists at the Georgia Institute of Technology achieved a 17-percent increase in boiling efficiency by using an acoustic field to enhance heat transfer. The acoustic field does this by efficiently removing vapor bubbles ...

May 24, 2012
5 / 5 (4) 6

Return of the vacuum tube

Vacuum tubes have been retro for decades. They almost completely disappeared from the electronics scene when consumers exchanged their old cathode ray tube monitors for flat screen TVs. Their replacement – the semiconductor ...

May 18, 2012
5 / 5 (11) 3

Electronic nose out in front

Chemical sensors are exceedingly good at detecting a single substance or a class of chemicals, even at highly rarified concentrations. Biological noses, however, are vastly more versatile and capable of discriminating subtle ...

May 02, 2012
5 / 5 (1) 0 | with audio podcast

Mining for heat

Underground mining is a sweaty job, and not just because of the hard work it takes to haul ore: Mining tunnels fill with heat naturally emitted from the surrounding rock. A group of researchers from McGill University in Canada ...

May 02, 2012
5 / 5 (2) 2 | with audio podcast