this post was submitted on 22 Oct 2023
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Laser Beams Deflected Off of Nothing but Air for First Time Ever in Breakthrough Patent Pending Process - The Debrief::An international team of scientists report that they have successfully used acoustics to deflect laser beams in an engineering first.

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[–] [email protected] 18 points 10 months ago* (last edited 10 months ago) (1 children)

Yes. Industrial grade ultrasonic sensors are harmful to your health. They can be used, for example, to measure the water level in a tank. If you need to enter a place like that, you should physically disconnect the sensor first. You might not hear much of the noise, but you may feel it in your teeth or some other places.

[–] [email protected] 7 points 10 months ago (1 children)

Weren't there some huge high power sonars that could melt people to goo?

[–] [email protected] 4 points 10 months ago (1 children)

Yep, and hurt whales from the pressure.

[–] [email protected] 2 points 10 months ago

Oh, so not all bad then