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LughMA to FuturologyEnglish · 6 个月前

What Should Light Sails Be Made Out Of?

www.universetoday.com

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What Should Light Sails Be Made Out Of?

www.universetoday.com

LughMA to FuturologyEnglish · 6 个月前
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The Breakthrough Starshot program aims to cross the immense distances to the nearest star in just decades. Using a high-powered laser to propel a reflective sail technology to relativistic speeds is their mission. The selection of sail material is key to its success as it must be lightweight while being able to withstand acceleration and … Continue reading "What Should Light Sails Be Made Out Of?"
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  • BearOfaTime@lemm.ee
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    6 个月前

    Light? I mean they’re light sails, right? 😆

    (I’ll see myself out)

    • Zachariah@lemmy.world
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      6 个月前

      Is lobster sauce made out of lobsters, or is it made of something else and you put it on lobsters?

      • AnUnusualRelic@lemmy.world
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        6 个月前

        It’s made by lobsters. It doesn’t matter what they make it of, or where it goes.

        • Zachariah@lemmy.world
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          6 个月前

          actual LOL from me

    • astrozoli@linux.community
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      6 个月前

      Oh man you’ve beat me to it

  • threelonmusketeers@sh.itjust.works
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    6 个月前

    The best material would be something thin and shiny like mylar, no?

  • just_another_person@lemmy.world
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    6 个月前

    What do Space Pirates use? Let’s use that.

    • TachyonTele@lemm.ee
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      6 个月前

      I would guess that the solution is in the name. Why else would they be light sails if they weren’t made of light? Who’s running this program?

    • AnUnusualRelic@lemmy.world
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      6 个月前

      Pixels, I think.

  • 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 🏆@yiffit.net
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    6 个月前

    Light.

  • BonerMan@ani.social
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    6 个月前

    Gigantic lenses to burn away bad people.

  • I_am_10_squirrels@beehaw.org
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    6 个月前

    Interesting problem. Kinetic energy is Ek = kv2, where k = 1/2 for Newtonian physics. To double your speed, you need to apply four times the energy. Momentum is p = mv, so doubling your speed doubles your momentum. When you’re in a vehicle collision, it’s your momentum that hurts you as you collide with the car frame around you. Small particles don’t have much mass, but at relativistic speeds they have a lot of momentum.

  • IMNOTCRAZYINSTITUTION@lemmy.world
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    6 个月前

    deleted by creator

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