laser
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Researchers Create Free-Floating Animated Holograms That Bring Us One Step Closer to Star Trek’s Holodecks
Back in 2018, researchers from Brigham Young University demonstrated a device called an Optical Trap Display that used lasers to create free-floating holographic images that don’t need a display. That same team is now demonstrating a new technique that allows those holographic images to be animated: goodbye TVs, hello holodecks.
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Four Laser Beams Will Create The World’s Most Powerful Fake Stars
Image Cache: Set lasers to star mode. The European Southern Observatory’s Paranal Observatory in Chile now has four powerful laser beams with which to create artificial stars in the night sky.
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Radar Scans Beamed To Earth Via Laser Can See Ships In Almost Real-Time
This grainy black-and-white image may not look like much, but it’s a record-breaker. A radar scan acquired by satellite and beamed back to Earth by laser, it allowed the European Space Agency (ESA) to identify ships off the coast of Brazil in less than 18 minutes — without any satellite ground stations nearby.
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Watch What Happens When You Ignite Methane With A Laser
Setting fire to things isn’t in and of itself science. But if you record it using schlieren photography at 10,000 frames per second — as in this video of laser-ignited methane — then it’s getting closer.