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A 'Star Wars' laser bullet

Action-packed science-fiction movies often feature colourful laser bolts. But what would a real laser missile look like during flight, if we could only make it out? How would it illuminate its surroundings? ...

dateOct 22, 2014 in Optics & Photonics
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What is the geometry of the universe?

One of the big questions in cosmology regards the shape of the universe. "Shape" in this case is not the distribution of galaxies, but rather the shape of space and time itself. In general relativity, space ...

dateSep 24, 2014 in Astronomy
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Perseverance paves way for wind laser

Developing new satellite instruments is always challenging, but at times more head-scratching is needed to create something truly cutting-edge. ESA's Aeolus mission may have caused a few headaches along the ...

dateApr 22, 2015 in Space Exploration
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Huge 3D displays without 3D glasses

A new kind of display uses laser beams to send out different pictures into different directions. Each pixel contains lasers and a moving mirror, which directs the laser light. Different pictures can be sent ...

dateJan 15, 2015 in Hi Tech & Innovation
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