News tagged with light waves

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Chips that can steer light

If you want to create a moving light source, you have a few possibilities. One is to mount a light emitter in some kind of mechanical housing—the approach used in, say, theatrical spotlights, which stagehands ...

Jan 09, 2013
4.3 / 5 (9) 2 | with audio podcast

Particles, waves and ants

Animals looking for food or light waves moving through turbid media – astonishing similarities have now been found between completely different phenomena.

Nov 26, 2014
4.9 / 5 (8) 0

Dwarf galaxy caught ramming into a large spiral

Observations with NASA's Chandra X-ray Observatory have revealed a massive cloud of multimillion-degree gas in a galaxy about 60 million light years from Earth. The hot gas cloud is likely caused by a collision ...

Aug 14, 2013
4.1 / 5 (9) 1 | with audio podcast

Studying waves over astronomical distances

Tiny pulses of light one billionth of a second apart, travelling further than from the Earth to Sun, were used in an exquisitely sensitive experiment at The University of Auckland to explore fundamental interactions between ...

Jul 08, 2013
5 / 5 (7) 2 | with audio podcast