News tagged with laser

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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? ...

Oct 22, 2014
4.6 / 5 (14) 0

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 ...

Sep 24, 2014
4.5 / 5 (54) 40

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 ...

Jan 15, 2015
4.6 / 5 (9) 0

Nanotube cathode beats large, pricey laser

Scientists are a step closer to building an intense electron beam source without a laser. Using the High-Brightness Electron Source Lab at DOE's Fermi National Accelerator Laboratory, a team led by scientist ...

Sep 30, 2014
5 / 5 (12) 0