The light travels in a straight line directly from the object to your eye. Ray diagrams are used to show the path that light takes. The rays of light are represented using straight lines ...

When a wave or light ray moves from one medium to another its speed changes. The direction of the ray may also change. This property of waves is called refraction and commonly occurs with light rays.

The hard X-ray FEL has come of age. A free-electron laser is not like other lasers. It works by forcing a beam of electrons, travelling at nearly the speed of light, to oscillate in a long ...

The High Energy Photon Source is essentially a circular track around which electrons will be beamed at incredibly high ...

What people like in art, even though they may not really be aware of it sometimes, is the beauty of it… to use the ...

Researchers have developed a highly sensitive detector for identifying molecules via their infrared vibrational "fingerprint.