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Cake day: July 15th, 2023

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  • FuglyDuck@lemmy.worldtoScience Memes@mander.xyzMythbusters
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    2 hours ago

    Except it’s not like attaching an anchor. The plane isn’t physically attached.

    The wheels will just roll double whatever the current ground speed is. If the plane has enough thrust to take off with the treadmill moving an inverse of its take off speed, then it has enough force to start rolling, too.

    At most, the force applied by the treadmill would be sufficient over enough time to lengthen the take off roll, but given enough space to do so, the plane will take off.

    To keep the plane from rolling forward; the treadmill would have to be able to apply an equal force as the engines, it can’t do that through the wheels- the wheels can only apply a force equal to their rolling resistance and friction in its mechanics.








  • Pete Arredondo, the former chief of the school district police in Uvalde, Texas, has been indicted and arrested over his actions during the police response to the 2022 school shooting in which a gunman killed 19 children and two teachers, the Uvalde County sheriff said on Thursday.

    “Mr. Arredondo is currently in our custody,” the sheriff, Ruben Nolasco, said in a text message, adding that Mr. Arredondo was being held on the charge of “abandoning/endangering of a child.”

    Good. Fuckwit deserves it. (also: archive link for people getting hit by paywall)









  • Iirc, the hole does 2 things. The first is it acts like a sound hole in a guitar or violin and alters the tonal qualities of the speaker (the enclosure acts like a resonate chamber.)

    Also, iirc, drivers have to work harder to move the membrane of the enclosure is totally sealed, since it’d have to compress the air inside/behind the membrane.

    Of course, cheap speakers probably did it because they saw JBL and others do it on the expensive studio monitors.

    As for spiders…. I think they’re cool, but only if they stay over …. There…. Jumping spiders can even be cute. But at a distance.

    Same goes for the centipede with the creepy legs. I respect that they eat things I’m happy not deal with… just don’t come over here.