Δευτέρα, 26 Μαΐου 2014

ScienceDaily: Top Science News

ScienceDaily: Top Science News


Advanced light: Sending entangled beams through fast-light materials

Posted: 25 May 2014 12:53 PM PDT

Whole beams, not just particles, can be entangled. This, plus anomalous dispersion in 'fast-light' materials, allows signals be to 'advanced' over signals travelling in vacuum, at least in a limited sense.

New method for propulsion in fluids: Researchers discover a way for temperature gradients in fluids to move objects

Posted: 21 May 2014 10:36 AM PDT

Researchers have discovered a new way of harnessing temperature gradients in fluids to propel objects. In the natural world, the mechanism may influence the motion of icebergs floating on the sea and rocks moving through subterranean magma chambers.

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