American Institute of Physics

Designing an acoustic diode

Most people know about ultrasound through its role in prenatal imaging: those grainy, grey outlines of junior constructed from reflected sound waves. A new technology called an "acoustic diode," envisioned ...

Nov 01, 2013
4.5 / 5 (23) 0 | with audio podcast

Densest array of carbon nanotubes grown to date

Carbon nanotubes' outstanding mechanical, electrical and thermal properties make them an alluring material to electronics manufacturers. However, until recently scientists believed that growing the high density ...

Sep 20, 2013
5 / 5 (14) 0 | with audio podcast

Seeing in the dark

Thermal infrared (IR) energy is emitted from all things that have a temperature greater than absolute zero. Human eyes, primarily sensitive to shorter wavelength visible light, are unable to detect or differentiate ...

Oct 29, 2013
5 / 5 (8) 0 | with audio podcast

Newly discovered mechanism propels micromotors

Scientists studying the behavior of platinum particles immersed in hydrogen peroxide may have discovered a new way to propel microscopic machines. The new mechanism is described in The Journal of Chemical Ph ...

Oct 15, 2013
4.8 / 5 (6) 1 | with audio podcast

What makes flying snakes such gifted gliders?

Animal flight behavior is an exciting frontier for engineers to both apply knowledge of aerodynamics and to learn from nature's solutions to operating in the air. Flying snakes are particularly intriguing ...

Mar 04, 2014
4.4 / 5 (9) 1

To touch the microcosmos

What if you could reach through a microscope to touch and feel the microscopic structures under the lens? In a breakthrough that may usher in a new era in the exploration of the worlds that are a million ...

Sep 13, 2013
5 / 5 (8) 0 | with audio podcast

Making quantum dots glow brighter

Researchers from the University of Alabama in Huntsville and the University of Oklahoma have found a new way to control the properties of quantum dots, those tiny chunks of semiconductor material that glow ...

Sep 16, 2014
4.1 / 5 (9) 0

Wrangling flow to quiet cars and aircraft

Plasmas are a soup of charged particles in an electric field, and are normally found in stars and lightning bolts. With the use of high voltage equipment, very small plasmas can be used to manipulate fluid ...

Oct 18, 2013
5 / 5 (11) 1 | with audio podcast