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☆ Yσɠƚԋσʂ ☆@lemmygrad.ml to technology@hexbear.netEnglish · 1 year ago

Chinese scientists close in on laser propulsion for superfast, silent submarines

www.scmp.com

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Chinese scientists close in on laser propulsion for superfast, silent submarines

www.scmp.com

☆ Yσɠƚԋσʂ ☆@lemmygrad.ml to technology@hexbear.netEnglish · 1 year ago
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Breakthrough overcomes decades-old problem of how to harness the technology to propel underwater vessels, according to paper.
  • vertexarray [any]@hexbear.net
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    1 year ago

    Theoretically, the development could allow a submarine to travel faster than the speed of sound without producing the mechanical noise vibration that usually gives away its location, according to the researchers.

    faster than the speed of sound. that can’t be right, right?

    that said, amazing tech. also I guess if you tried to produce a sonic boom underwater you’d have to go way faster than in air right? would supercavitation tear your vessel apart before then?

    • GarbageShoot [he/him]@hexbear.net
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      1 year ago

      Maybe they mean faster than the air speed of sound but still less than the underwater speed (which is a huge margin, it turns out, 340 vs 1500 m/s)

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        1 year ago

        I thought even that would be way too fast but it seems like it’s totally possible. Had no idea! https://en.wikipedia.org/wiki/VA-111_Shkval

    • ☆ Yσɠƚԋσʂ ☆@lemmygrad.mlOP
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      1 year ago

      Russia already makes supercavitating torpedoes, so should be possible to do it for subs as well https://en.wikipedia.org/wiki/VA-111_Shkval

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