• dave@feddit.uk
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    3 hours ago

    2” x 4” construction timber is 1.5” x 3.5” because of industrialisation (not shrinkflation)

  • missfrizzle@discuss.tchncs.de
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    4 hours ago

    Chinese scientists worked to create the “humanzee,” a human-chimpanzee hybrid in the '60s. Female chimpanzees were impregnated with human sperm. The experiment was cut short by the Cultural Revolution - the scientists were sent to labor camps and a three-months pregnant chimpanzee died of neglect. The Soviets attempted a similar program in the '20s.

    • DreasNil@feddit.nu
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      3 hours ago

      This sounds like a bunch of b***shit so I had to look it up. Seems like you’re actually right… 😳

  • daggermoon@lemmy.world
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    6 hours ago

    HD-DVD and Blu-ray weren’t the only HD video disc formats competing for dominance in the '00s. HD VMD which was basically a DVD containing more layers unsuccessfully tried to compete with the two. The company who produced it dissolved in 2008 and only a few titles were ever released on the format.

  • borokov@lemmy.world
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    7 hours ago

    There are more hydrogen atom in a single molecule of water than there are star in the entire solar system.

  • Jonnyprophet@lemmy.world
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    8 hours ago

    &

    This symbol, the ampersand, used to have equal status with letters of the alphabet and was stuck at the end after Z.

    That’s how it got its name. People would say “X,Y,Z, and, per se, And”. (And “sort of” an and). Thus, “And per se And” became Ampersand.

  • Jentu@lemmy.ml
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    10 hours ago

    You know how geese fly in a “v” shaped pattern in the sky? One side of the “v” is usually longer than the other. The reason for that is that there’s more geese on that side.

  • memfree@piefed.social
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    10 hours ago

    The entomology book Life on a Little Known Planet taught me that bebugs mate via “traumatic insemination”. The female has no opening, so the male pierces the exoskeleton and the wound later heals over – all of which allows entomologoists to count the number of times a female has mated by the number of scars on their abdomen.

  • DominusOfMegadeus@sh.itjust.works
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    13 hours ago

    Bedsheet thread counts have been artificially inflated for years by the shifty linen companies counting individual fibers that the threads consist of as threads themselves. It’s become a meaningless number, since there is zero regulation. If you want a nice thick heavy cloth, GSM is the number you want, but most companies won’t share this (looking at you, The Company Store) because they obviously don’t want you to know how thin and flimsy their products really are before you buy them.

  • monovergent 🛠️@lemmy.ml
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    13 hours ago

    Several popular graphing calculators from Texas Instruments, including the TI-83 and TI-84, have a display resolution of 96*64, but only 95*63 pixels are used for graphing.

    However, the earlier TI-81 did use all 96*64 pixels. The rationale for this change was to establish a central row and column for the axes and a central pixel for the origin. The cursor could only move pixel-by-pixel, and since the axes and origin would end up “between” pixels on the TI-81, they were inaccessible by the cursor.

    • Captain Aggravated@sh.itjust.works
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      12 hours ago

      The Ti-83 Plus Silver Edition and early models of the Ti-84 Plus Silver Edition had 128K of RAM, upgraded from the typical 28 or 48 that the 83 Plus or 84 Plus had. But the additional RAM was impossible to use as the OS had not been altered to address it.

  • minnow@lemmy.world
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    14 hours ago

    Diamonds aren’t stable and will eventually, over billions of years, decompose from their cubic molecular structure to carbon’s more stable form, graphite, which has a hexagonal molecular structure.

    Oh, here’s another good gemstone related one!

    Amethyst and citrine are both quartz varieties, and if the color source happens to be from traces of iron in the crystal lattice, one can be turned into the other. Heating amethyst can make citrine, and irradiating citrine can turn it into amethyst. This is because the only actual difference between the two is the valiance level of a specific election in the iron atom giving the stone its color.

    • toynbee@lemmy.world
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      11 hours ago

      hexagonal molecular structure

      You know, I think I’ve heard something about hexagons on the internet before …