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Joined 1 year ago
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Cake day: July 3rd, 2024

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  • Focusing at a point behind the image is exactly what we’ve always done for every other magic eye poster because it only requires relaxing your eyes (staring off into the distance) for the image to pop into focus. Cross eyed viewing is damn near impossible on any screen at less than an arm’s length away without significant eye strain or external devices (like the stereoscopic viewers that photogrammetrists would use to view these kinds of images without inducing a migraine) and since the dot is on top holding a finger up as a guide ends up obstructing the entire view unless your arms are growing out of your forehead. The wall eyed view has none of these issues.

    I appreciate the post and your effort. But, the images themselves are frustrating and have killed my initial reaction, which was to share them further. Because I’m nearly the only person I know that wouldn’t loose interest in the explanation for “correct viewing” half way through. If they were wall eyed stereoscopic images, I could just say “Magic Eye”, they’d remember Mallrats, see the schooner, and go “Ooh neat.”





  • Have you checked your blood pressure lately? Salt intake? Hydrating okay? Hormones? Allergies?

    Could be an early warning sign of something more serious.

    A little swelling and water retention especially on hot days is normal. But, if your shoes stop fitting due to a little water retention, they probably didn’t fit very well to begin with. It’s easier than you’d think to get used to shoes that are too small. Your feet adapt, but suffer.




  • Mpd + a frontend of your choosing, I prefer ncmpcpp, will run on just about anything and is remotely controlled through apps or ssh. Mpd is great when the server is physically connected to the audio output device. I use it to remotely control a speaker connected server that can also run Plex (because I prefer plexamp for streaming and syncing to my phone, other android devices, and smart speakers). They both look at the same directory of a collection near 30 years in the making with hundreds of thousands of files and a wide array of formats.



  • It didn’t come together like a granny knot, which I understand to be just a square knot with the orientation of one half flipped. The knot I learned wrapped the free end around the base of a loop and pulling a section of that free end through it to create another loop. It was unbalanced for the same reasons as a granny knot though and probably very similar.

    The knot I tie now is basically a square knot where the “top” half is formed from two loops. Admittedly the knot I tie now, would have been much more difficult for toddler fingers than the knot I learned as that toddler.




  • Wolf314159@startrek.websitetoScience Memes@mander.xyzENHANCE
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    3 months ago

    If you’re going to be snarky about units, at least get the significant digits correct. The infographic gives 100°F as the temperature. If I had to guess I’d say that wherever that number came from, it’s precision is much less than a whole °F, but for simplicity let’s just say that the precision is a whole number, no decimal places in the precision. At that precision 37.5°C and 38°C are both also 100°F. There are 9/5 °F for every °C after all. If you’d said 37.7°C I wouldn’t have even commented. But that was one decimal place too far (and being too lazy to find the ° symbol or type out degrees).

    You’re all probably saying, “Who cares? Why do you care? Aren’t you just being any even more annoying pedant?”

    I do. I don’t know. Probably.

    But, if you’re going to be a smartass, you better at least try to be smart about it.


  • Wolf314159@startrek.websitetoLemmy Shitpost@lemmy.worldwoag
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    3 months ago

    It’s an optical illusion. By definition their isn’t generally anything YOU would call erroneous about any optical illusion, I’d guess. The fact that the text is difficult bordering on impossible to read at some angles is the perceptual error. Stop ignoring obvious interpretations to support your pedantic trolling.


  • That’s an unhelpfully restrictive definition of illusion that is itself illusory. An illusion is also:

    A sensation originated by some external object, but so modified as in any way to lead to an erroneous perception; as when the rolling of a wagon is mistaken for thunder.

    The text is hidden or revealed through a change in perspective. That is the illusion.



  • Because vector graphics take up much less space. That’s the joke.

    Now I’m going to put the joke out of it’s misery.

    Most of the illustrations, formula, tables etc. in a math book could be vector graphics, most of them were in 90% of the upper level math text books I’ve ever had, usually in only 2 colors. Many math formulas can be represented and formatted directly using only Tex or LaTex. Mostly physics and math involving more than two dimensions would have more raster images, even color. But it’s not like the publishers are going to be handing out PDFs with original vector graphics embedded. That would make high quality knockoffs trivial.