Chinese Scientists Show Off Laser That Can Write Words in Mid-Air - Futurism

Scientists at Hongtuo Joint Laboratory in Wuhan, China, have invented a somewhat mysterious laser pen that lets users write in mid-air.

Wow. Magic Pen Scientists at Hongtuo Joint Laboratory in Wuhan, China, have invented what sounds like a mysterious yet fascinating laser pen that can write in mid-air an intriguing approach that co… [+1504 chars]

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