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Cake day: June 16th, 2023

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  • Hugin@lemmy.worldtomemes@lemmy.worldTake a hint
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    8 days ago

    Check out Real Engineering. He does good research and a lot of his own interviews.

    Practical Engineering writes hits own material and makes a lot of mini models to demonstrate the effects he is talking about.

    Red Letter Media has a ton of movie discussion and analysis.


  • I played Fallout 4 back when it came out. About 10 hours in I was doing some quest approaching a building with some guys I had to kill to get a thing. And I realized I wasn’t having fun.

    I thought about what else I could do. Building settlement wasn’t fun. The quests stories were dull. I didn’t like any of the NPC characters. So I stopped playing figuring I would come back latter.

    It’s been years and I still haven’t bothered returning. A I’ve been playing Bethesda games starting with daggerfall.


  • So white light is when your brain sees a roughly matched signal level on all three color channels. So white would be all of whatever color receptors we evolved for the planet. It’s more of a signal overload than a color.

    We actually can’t tell the difference between the mix of primary colors and the actual color. Take Cyan at about 490nm. Looking at it triggers your red, blue, and green receptors in a spefic set of levels your brain reads as Cyan.

    However your brain can’t tell the difference between a signal at 490nm and the right combination of 440, 540, and 580 nm. So for example a tv can only show 3 colors but your eyes and brain can’t tell the difference between that and all the natural colors.

    We are the most sensitive to green because it’s the wavelength least used by photosynthesis and most plants reflect it. So we evolved to be extra sensitive to it. Camera sensors are usually 50% green, 25% red, 25% blue.

    A small number of women have a mutation allowing them to see yellow. So some women can tell the side difference between true yellow and a primary color mix.


  • Both are used. If you see caliber after the number it’s in 100 of an inch. If you see mm it’s metric. (Though caliber refers to barrel diameter and can be expressed in imperial or metric). So a 45 caliber is 0.45 inches or about 11.5mm.

    NATO has standardised on a few round types so they can share supplies between countries. The NATO 7.62×51mm round is very similar to the .308 and they can usually be interchanged.