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sixfold sixfold @lemmy.sdf.org

https://sullen.social/c/series_of_tubes ( [email protected] )

Posts 104
Comments 91
'She had limited value': Seattle officer investigated over bodycam comments
  • from that article: "Gallows Humor is, by definition, from the perspective of the victim or at least expressing empathy. If anyone else laughs at the victim or the author tries to make the situation funny, it's some other form of Black Comedy. This trope is generally when the joke itself or simple laughter allows you to deal with your problems."

    I guess it depends on your perspective. Who's the victim here.

  • cross-posted from: https://lemmy.sdf.org/post/3795687

    > "Many of these terms were in common use into the 20th century." > > I hear many of these terms in common usage today, like potash, tartar, spirits, soda/soda ash, lime, soda lime, slacked lime, quicklime, lye, alkali, caustic soda, caustic potash, caustic alkali, quicksilver, chalk, cinnabar, fools gold, fulminating silver, fulminating gold, gypsum, vitriol has taken on a less specific meaning, aqua regia, turpentines, lead sugar, sulfur. > > I think the reason that so many of these terms are retained is that the substances they refer to have been known for thousands of years in some cases. > > brimstone is a much cooler name for sulfur that should be brought back. > aqua vitae is a nice name for ethanol. > the names of metals haven't changed.

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    "Many of these terms were in common use into the 20th century."

    I hear many of these terms in common usage today, like potash, tartar, spirits, soda/soda ash, lime, soda lime, slacked lime, quicklime, lye, alkali, caustic soda, caustic potash, caustic alkali, quicksilver, chalk, cinnabar, fools gold, fulminating silver, fulminating gold, gypsum, vitriol has taken on a less specific meaning, aqua regia, turpentines, lead sugar, sulfur.

    I think the reason that so many of these terms are retained is that the substances they refer to have been known for thousands of years in some cases.

    brimstone is a much cooler name for sulfur that should be brought back. aqua vitae is a nice name for ethanol. the names of metals haven't changed.

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    INTERPRETATIONS OF POWERS OF 10

    cross-posted from: https://lemmy.sdf.org/post/3732588

    > A nice trip up and down the scale of things. I especially like the ones from 10^1 to 10^14, inhumane numbers attempting to be brought to a human scale. > > Source: > CRC Standard Mathematical Tables and Formulas (Zwillinger, Daniel) (Z-Library)

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    INTERPRETATIONS OF POWERS OF 10

    cross-posted from: https://lemmy.sdf.org/post/3732588

    > A nice trip up and down the scale of things. I especially like the ones from 10^1 to 10^14, inhumane numbers attempting to be brought to a human scale. > > Source: > CRC Standard Mathematical Tables and Formulas (Zwillinger, Daniel) (Z-Library)

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    INTERPRETATIONS OF POWERS OF 10

    A nice trip up and down the scale of things. I especially like the ones from 10^1 to 10^14, inhumane numbers attempting to be brought to a human scale.

    Source: CRC Standard Mathematical Tables and Formulas (Zwillinger, Daniel) (Z-Library)

    2
    You can and you should contribute - Open Street Map
  • time for some kind of anonymizing location data sharing service, peer to peer or federated protocol? that might be interesting, or sketchy, not sure which.

  • You can and you should contribute - Open Street Map
  • Pretty sure you can download the maps ahead of time, GPS doesn't require data, then upload the fixes when you get home.

  • You can and you should contribute - Open Street Map
  • Go map keeps crashing for me, does it for you?

  • You can and you should contribute - Open Street Map
  • I've been using Go Map! but it keeps crashing... Maybe I'll try Streetcomplete if it's on apple.

  • That feeling when you're googling the answer to some technical question, and your own Lemmy post appears 4 results down.
  • Crawling and indexing lemmy inter-instance would be an incredible boon to discoverability on the platform.

  • Figs and Fig Wasps coupled sexual reproduction

    www.scanofthemonth.com Discovering Nature's Engineering Marvels Through Advanced CT Scans

    Join us as we unveil the intricate beauty of plants and fungi through the lens of industrial CT scanning technology. See nature in a whole new light.

    Discovering Nature's Engineering Marvels Through Advanced CT Scans

    cross-posted from: https://lemmy.sdf.org/post/3152363

    > Figs and fig wasps have a tightly coordinated reproductive cycle, and have been cospeciating for 70 to 90 million years. The pollination of figs is accomplished in an internal cavity only accessible to a specific species of wasp. The wasp enters through an opening that is only just large enough for it to get through, loosing it's wings and antenna in the process. Pollen on the wasp pollinate the fig's internal flowers, and the wasp lays it's eggs in some of the flowers before dying there. When the male wasps hatch, they fertilize the unhatched females, and burrow tunnels out of the fig before also dying inside it. When the females hatch, they exit the fig through the tunnels, taking pollen with them to search for a fig within which to lay their eggs. > > https://en.wikipedia.org/wiki/Syconium > https://en.wikipedia.org/wiki/Fig_wasp

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    Figs and Fig Wasps coupled sexual reproduction

    www.scanofthemonth.com Discovering Nature's Engineering Marvels Through Advanced CT Scans

    Join us as we unveil the intricate beauty of plants and fungi through the lens of industrial CT scanning technology. See nature in a whole new light.

    Discovering Nature's Engineering Marvels Through Advanced CT Scans

    Figs and fig wasps have a tightly coordinated reproductive cycle, and have been cospeciating for 70 to 90 million years. The pollination of figs is accomplished in an internal cavity only accessible to a specific species of wasp. The wasp enters through an opening that is only just large enough for it to get through, loosing it's wings and antenna in the process. Pollen on the wasp pollinate the fig's internal flowers, and the wasp lays it's eggs in some of the flowers before dying there. When the male wasps hatch, they fertilize the unhatched females, and burrow tunnels out of the fig before also dying inside it. When the females hatch, they exit the fig through the tunnels, taking pollen with them to search for a fig within which to lay their eggs.

    https://en.wikipedia.org/wiki/Syconium https://en.wikipedia.org/wiki/Fig_wasp

    0
    Google calendar won't open links in Firefox iOS
  • It does. And Firefox is my default browser app.

  • Google calendar won't open links in Firefox iOS

    It's the only browser I have installed besides Safari, and my default browser but instead of just opening the link with my default browser, it advertises these other browsers to me and makes me click 'Default browser app' by default. wtf I'll be turning that off, should have never been a feature.

    20
    First Attempt at Andromeda
  • Looks great! Nice work! What mount do you use?

  • makertube.net Doom Fire on TTGO-TWatch-2020-v1 (With Doom Logo)

    Just a quick porting of the Game&Watch demo from this awesome project: https://github.com/x1sec/game-and-watch-doom-fire Added the scrolling logo to fit the original animation, Sorry about the saturated colors and the bad focus of this video, the phone camera is either getting old or struggling ...

    Doom Fire on TTGO-TWatch-2020-v1 (With Doom Logo)
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    Vapor pressure demo

    diode.zone Boiling water with ice

    This is a vapor pressure experiment, the jar was sealed while the water was boiling on a hot plate, so the steam displaced all the air out of the jar. After sealing, the jar was quickly removed from the heat and let cool. now, there is only water and water vapor in the jar (give or take, there is so...

    Boiling water with ice

    I put water in a jar and sealed it while it was boiling, and now it boils at any temperature. Super fun demo to try.

    1
    The Human Shader
  • I decided to translate the worksheet into GLSL code on shadertoy. It was really cool to see the gradients and sub-coordinate systems represented by the intermediate variables in the calculation. Smoke and mirrors. Maybe you might have some insight into some of the calculations. https://www.shadertoy.com/view/cllBzM

  • Game of Life shader
  • Any ideas?

  • Game of Life shader
  • I was thinking of doing three separate GOL simulations, one on each RGB channel, and letting the colors mix that way into like 6 colors. right now, I clamp the pixel brightness values to 0 or 1, so that's why it's black/white, or rather black/green.

  • Game of Life shader

    I've been playing with shadertoy a bit, and here is a lil demo. It's probably not the best way to do it, code suggestions welcome.

    https://www.shadertoy.com/view/dtlBRM

    Here's most of the code for reference: ``` void mainImage( out vec4 fragColor, in vec2 fragCoord ) { // fetch neighbor values from last frame, loop back onto screen if off screen mat3 n; n[0][0] = texelFetch(iChannel0, ivec2(mod(vec2(fragCoord) + vec2(-1., -1.), iResolution.xy)), 0).g; n[1][0] = texelFetch(iChannel0, ivec2(mod(vec2(fragCoord) + vec2(0., -1.), iResolution.xy)), 0).g; n[2][0] = texelFetch(iChannel0, ivec2(mod(vec2(fragCoord) + vec2(1., -1.), iResolution.xy)), 0).g; n[0][1] = texelFetch(iChannel0, ivec2(mod(vec2(fragCoord) + vec2(-1., 0.), iResolution.xy)), 0).g; n[1][1] = texelFetch(iChannel0, ivec2(mod(vec2(fragCoord) + vec2(0., 0.), iResolution.xy)), 0).g; n[2][1] = texelFetch(iChannel0, ivec2(mod(vec2(fragCoord) + vec2(1., 0.), iResolution.xy)), 0).g; n[0][2] = texelFetch(iChannel0, ivec2(mod(vec2(fragCoord) + vec2(-1., 1.), iResolution.xy)), 0).g; n[1][2] = texelFetch(iChannel0, ivec2(mod(vec2(fragCoord) + vec2(0., 1.), iResolution.xy)), 0).g; n[2][2] = texelFetch(iChannel0, ivec2(mod(vec2(fragCoord) + vec2(1., 1.), iResolution.xy)), 0).g;

    // sum of neighbors float sum = n[0][0] + n[1][0] + n[2][0] + n[0][1] + n[2][1] + n[0][2] + n[1][2] + n[2][2];

    if(n[1][1] == 0.) { if(sum == 3.) { // if dead and has 3 neighbors, come alive fragColor = vec4(0., 1., 0., 1.); } else { // otherwise stay dead fragColor = vec4(0., 0., 0., 1.); } } else { if(sum == 2. || sum == 3.) { // if alive and has 2 or 3 neighbors, stay alive fragColor = vec4(0., 1., 0., 1.); } else { // otherwise, die fragColor = vec4(0., 0., 0., 1.); } } } ```

    8
    An introduction to Shader Art Coding
  • I thought there was something slightly peculiar about the narration.

  • The Human Shader

    humanshader.com Inigo Quilez

    Human Shader, computing a shader image by hand

    Inigo Quilez

    A GLSL shader computed painstakingly by hand by almost 2000 people

    !

    10

    An introduction to Shader Art Coding

    A very good introduction to shader programming, goes through all the basics and offers lots of tools to help get you started. Get out there a program a shader.

    0
    diode.zone Mutations on a Gene regulatory network

    Demonstration of a rapid series of mutations on a simulated gene regulatory network. The set of mutations is selected to balance the generation and destruction of genes (represented by circles/numbers) and interactions between them (the lines/arrows connecting them) so that hopefully the number of g...

    Mutations on a Gene regulatory network

    Now a set of useful mutations are implemented, and balanced so that the number of nodes or edges doesn't explode.

    The mutations I've implemented (node are genes are nodes): add random gene delete node delete group of nodes (range of indexes) split edge create new node in place of an edge (insertNode) flip edge duplicate node duplicated group of nodes (range of indexes) change node index (regrouping/separating functional groups) change group of nodes index (transposable elements) create random edge delete random existing edge scale existing edge weight negate weight redirect existing edge to random node scale parameter (k1, b, k2) negate bias

    This is the next installment from the Gene Regulatory Network saga.

    previously: https://lemmy.sdf.org/post/1967056######

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    Scientists Recreate Pink Floyd Song by Reading Brain Signals of Listeners

    Reconstruction of auditory stimulus from intracranial electroencephalograms.

    Cool diagram from the paper: !

    Here's a phys.org write up of it also, with the audio easy to listen to.

    https://phys.org/news/2023-08-brain-patients-scientists-reconstruct-pink.amp

    >sourced from https://lemmy.ml/post/3589646

    0
    *Permanently Deleted*
  • Spinnaker

  • The Yandex Leak: How a Russian Search Giant Uses Consumer Data
  • Actually, this is more than just interesting. This is unsettling.

  • Has the time since the invention of agriculture been long enough for any evolutionary changes to occur, and if so, what are some of those changes?
  • I hear you, but genetic change at the level of these diseases and traits can take on the order of hundreds of thousands of years or more to accumulate into meaningful trends. Social society is a part of that process, in the way it might be for other social animals. If social dynamics tend to result in communities harboring vulnerable individuals, then there is probably some selective advantage to that behavior, not the other way around.

  • Has the time since the invention of agriculture been long enough for any evolutionary changes to occur, and if so, what are some of those changes?
  • This is a common misconception. These traits are not likely due to modern medicine (which is very, very new compared to the scale of human evolution). The environment plays a big role, but there is always a distribution of traits in a normal population, some good, some bad. Not to mention that what we might be self-selecting for must change very rapidly as civilizations rise and fall, preferences shift like the winds, and ethics rapidly evolve. I think this misconception can be dangerous, because of what you mentioned. Eugenics.

  • How dangerous are magnetic items near an MRI magnet?
  • It's very difficult and dangerous to be near an MRI 'shutting down'. Assuming what you mean is turning of the magnet. The magnet is always on, its a coil of superconducting wire submerged in liquid helium with a very large permanent current flowing around it. In order to turn off the magnet quickly, the electric current must be quenched, which can happen if the coil every stops being a super conductor. The current starts heating the coil, causing the liquid helium to boil off, which doesn't cool the coils as efficiently, and causes a rapid run-away effect where huge volumes of helium explode out of the machine, displacing all the breathable air in the room and blasting all the doors off their hinges, maybe even breaking windows. There's a lot of energy stored in the coil. It's not easy to turn it off.

    Look up videos of MRI quenching