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What weird false belief did you have as a kid?
  • Oh yeah I had a few.

    • That the moon you see during daytime is actually Mars (I then repeated that to my big sister and she believed it for an embarrassingly long amount of time)
    • That the "up" arrows on traffic lights were for planes
  • Fond memories
  • I loved my Samsung Galaxy Q. But now that I'm used to gesture typing, I wouldn't go back. It's much faster than hitting keys individually with my thumbs.

    One thing I do miss though is how quick it was to select/copy/paste.

  • How would you teach digital literacy to 13-18 year old students?
  • Maybe do robotics (likely in a simplified way; surely "robots for dummies" is a thing?) and have them make their robots compete in some sort of competition at the end of the year.

    I'm not even a competitive person at all, but when our school had us compete on Popsicle stick bridges, I had a ton of fun. Creative projects with a clear, real-world benchmark at the end are really fun.

  • Mozilla exits the fediverse and will shutter its Mastodon server in December
  • I understand that they need to diversify so that they're not so dependent on Google's default search engine money. I don't know how they should do that.

    But I'm not sure what they've been doing has been all that good of an idea.

  • Can you safely heat people with microwaves?

    Sometimes, when I'm really cold, it can take over an hour to warm me up, even with a heating blanket. The quickest solution, a hot shower, feels really inefficient with all the heat going down the drain.

    That got me thinking about microwaves. They heat food (partly) from the inside, contrary to simple infrared radiation.

    Could we safely do that with people?

    I found a Reddit thread where a non-lethal weapon and people getting eye damage because they stayed too long in front of a radar dish.

    Could some sort of device be made that would warm specific areas (say, a hand or a leg) without endangering sensitive areas like the eyes?

    Would it actually warm someone up from the inside? Would it be possible to make it safe?

    Would it present advantages in cases of hypothermia, compared to heated IV fluids?

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    ELI5: Why is high frequency trading allowed?

    I don't see how it's a benefit to capitalism or companies or, well, anyone, really, to allow people to make thousands of trades a day for minute profits on each.

    My gut feeling is that the stock market would not suffer, and less resources would be wasted, if trades and updates to stock prices were limited to, say, one batch per hour.

    There are probably reasons the system is the way it is though.

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    InitialsDiceBearhttps://github.com/dicebear/dicebearhttps://creativecommons.org/publicdomain/zero/1.0/„Initials” (https://github.com/dicebear/dicebear) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)EI
    Eiri @lemmy.ca
    Posts 2
    Comments 130