• ByteJunk@lemmy.world
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        1 month ago

        A mirror doesn’t generate its own light either, but would you try shooting a weapons grade laser into one and pointing it at one of your eye sockets?

        • IronKrill@lemmy.ca
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          1 month ago

          The original post is equivalent to saying “this mirror is 1/8 the brightness of the light bulb in my room” and then buying 8 mirrors and turning off the light bulb.

          • ByteJunk@lemmy.world
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            1 month ago

            That’s the fun of out of context comics. This one doesn’t state that the goal is to replace the sun, but to equal its brightness.

            Suppose batman has a new sun-powered gadget, except well he’s Batman so it needs to work at night. But he’d need 455000 moons to pull that off, and yet he does it somehow.

            I’d read that comic…

        • Flying Squid@lemmy.worldOPM
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          1 month ago

          I wouldn’t compare the brightness of a laser to a reflection of itself. That’s the issue I’m seeing.

          • ByteJunk@lemmy.world
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            1 month ago

            Why not? There’s a bunch of applications where that is a requirement.

            The Lunar Laser Ranging experiments are a fun one, I think. Scientists shoot lasers at mirrors placed in the moon and measure the trip time of light to calculate the distance of the moon to the millimetre.

            However:

            Out of a pulse of 3×10E17 photons aimed at the reflector, only about 1–5 are received back on Earth, even under good conditions.

    • ByteJunk@lemmy.world
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      1 month ago

      Also the Earth would probably be pulled apart under the gravity of all those moons, which will likely solve many of the present day issues so let’s not rule that out as an option is all I’m saying.

  • AFK BRB Chocolate@lemmy.world
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    1 month ago

    Reminds me of that thing that said the moon is better than the sun because the sun shines light during the day, when we don’t need it, but the moon shines light at night when it’s more useful, even if it’s not as bright.

    I think it’s a joke, but these days I just don’t know.

    • Elgenzay
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      1 month ago

      We don’t need our SREs; the website is running fine

  • TheTechnician27@lemmy.world
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    1 month ago

    Okay, so the Moon weighs about 0.012 Earths. The Sun weighs about 333,000 Earths. Meaning the Sun is about 27.75 million Moons. Clearly, then, we can’t assume they mean that 455,000 Moons would collapse into a star and be just as luminous.

    So now what I’m wondering is: does ~1/455,000 of the Sun’s light hit the Moon? That can’t be true at all, right?

    • Elgenzay
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      1 month ago

      They’re using luminosity from the perspective of Earth. In our sky, the sun is 400k times brighter than the full moon

    • Flying Squid@lemmy.worldOPM
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      1 month ago

      I’m guessing this was more the reality:

      “Boss, we have one more panel to fill. What do I put there?”

      “Deadline’s in an hour. Just put some shit in about the moon and send it to press.”

  • /home/pineapplelover@lemm.ee
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    1 month ago

    The moon is more useful than the sun since the sun is already out when it’s daytime but the moon gives us light when it’s night time