How sound and light act alike—and not—at the smallest scale

A world-famous light experiment from 1801 has now been carried out with sound for the first time. Research by physicists in ...
Science Daily

New sensor uses MRI to detect light deep in the brain

Using a specialized MRI sensor, engineers have shown that they can detect light deep within tissues such as the brain. Using a specialized MRI sensor, MIT researchers have shown that they can detect ...

Compact laser system shows 80% efficiency for ultrashort light pulses is possible

Lasers that emit extremely short light pulses are highly precise and are used in manufacturing, medical applications, and ...
EDN

Arduino & Rain Sensor Experiment

The experiment is for switching an acoustic sounder as a rain alarm after a predetermine time. It may, however, be tinkered for a number of other applications. Needless to say, this is a simple ...
Ars Technica

Ambient light sensors can reveal your device activity. How big a threat is it?

An overwhelming majority of handheld devices these days have ambient light sensors built into them. A large percentage of TVs and monitors do, too, and that proportion is growing. The sensors allow ...