Researchers announced last week that they had slowed down faint pulses of laser light and retrieved an image from that light after speeding it back up. In principle such "slow-light" technology might ...

Three's company: interference patterns for one to four slits (expand for full image) A group of physicists in Austria has directed a beam of large molecules at a series of extremely narrow slits to ...

This is a simple experiment to show the diffraction pattern of a light passing through a small slit formed by two fingers held together close to the eye. Place the light bulb somewhere in the ...