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Cake day: July 1st, 2023

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  • A rocket is not fundamentally new and hasn’t been for almost 100 years.

    Rockets perform correctly when they deliver their payload to the correct orbit.

    You can calculate the energy density of fuels, the efficiency of your engines at various atmospheric pressures, and determine the payload size you can deliver with your engines and fuel. Blowing up rockets for “tests” is so 1950s. We have whole college programs on rocket design. We have desktop computers more powerful than anything available in the 1960s, and NASA managed to design the Saturn V, a rocket of similar size to starship, with the computers of the time and fucking slide rules. The Saturn V had its problem, but each rocket managed to deliver its payload and perform its part of the mission without blowing up.

    Your comment is classic tech bro. No understanding of real engineering principles and only a desire to shove some shit out of the door as fast as possible.









  • Zron@lemmy.worldtoTechnology@lemmy.worldThe Paper Passport Is Dying
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    2 months ago

    I mean, you never owned your passport, ever.

    If you look at the very first page, it says “ property of the US government” and then there’s some blurb about tampering being a felony.

    Same thing for a diver’s license. You don’t own it, your state does.

    I do agree that moving to digital identification is a huge mistake. It’s too easy to lose access to a digital device or account. Or have it spoofed in some way. I’d much rather have a physical ID that won’t run out of battery or have a glitch that makes accessing it impossible for an unknown length of time.



  • Zron@lemmy.worldtoTechnology@lemmy.world*Permanently Deleted*
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    2 months ago

    You think a billionaire that spends most of his “very busy” schedule tweeting nonsense cares to read the news?

    There’s probably a dedicated intern that gives him daily briefings while Musk scrolls twitter for a new Nazi to retweet. The intern knows better than to upset the Muskrat, and keeps news about Tesla issues to a minimum.


  • Zron@lemmy.worldtoScience Memes@mander.xyzDesks
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    3 months ago

    Well that’s the thing, conventional explosions convert chemical bonds into energy. Chemical bonds are fairly weak in the grand scheme of things.

    Nuclear weapons convert nuclear bonds into energy. Atoms really like staying the atoms they currently are, so forcing them to convert all at once releases a ton of energy.


  • Zron@lemmy.worldtoScience Memes@mander.xyzDesks
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    3 months ago

    Nukes are crazy.

    The mushroom cloud is actually caused by all the dust and debris that gets sucked up into the actual explosion.

    Nuclear reactions happen at near light speed, and the heat from them does propagate at light speed.


  • Zron@lemmy.worldtoScience Memes@mander.xyzDesks
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    3 months ago

    The blindness thing is really only for a split second while the fission/fusion is actually happening. By the time the mushroom cloud has formed, the actual explosion was like 30 seconds ago.

    If you see a full mushroom cloud, that means the glass in front of you is probably going to rapidly accelerate into your skull when the shockwave hits you.