Normally, an object in thermal equilibrium with its environment emits and absorbs thermal radiation at the same rate (left). But researchers have developed a multilayer material (right) that, when ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...

Scientists have discovered a potentially promising infrared LED and infrared detector component. This compound -- composed of calcium, silicon and oxygen -- is cheap to produce and non-toxic. Many of ...

In a breakthrough, Israeli researchers have measured invisible particles known as cosmic rays deep inside a dust cloud 400 light-years from Earth. The peer-reviewed study detecting these previously ...

Terahertz radiation, occupying a spectral region between microwave and infrared frequencies, is increasingly recognised for its potential in applications ranging from biomedical imaging and security ...

A paper card with three sensors mounted on the front. Each sensor has a 3" lead wire attached to either end. Handwritten on card: "3 microns / E-IL Ektron Detectors / Lead Sulphide / ca. 1950 / W-2 / ...