American Institute of Physics

A better device to detect ultraviolet light

Researchers in Japan have developed a new photodiode that can detect in just milliseconds a certain type of high-energy ultraviolet light, called UVC, which is powerful enough to break the bonds of DNA and ...

Oct 04, 2013
4.7 / 5 (6) 0 | with audio podcast

Magnetic shielding of ion beam thruster walls

Electric rocket engines known as Hall thrusters, which use a super high-velocity stream of ions to propel a spacecraft in space, have been used successfully onboard many missions for half a century. Erosion of the discharge ...

Feb 13, 2013
4.9 / 5 (15) 4 | with audio podcast

Birthing a new breed of materials

Where two different materials meet on the atomic level, a new material can be born that is neither one nor the other. The two parent materials do not mix – they remain distinct from one another – but their marriage begets ...

Oct 23, 2013
5 / 5 (7) 0 | with audio podcast