sixfold

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.

This is a jar full of only water (liquid and vapor). It boils at any temperature when you apply something cold enough to the top, like ice.

cross-posted from: https://lemmy.sdf.org/post/2697716

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.

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.

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.);
        }
    }
}

A GLSL shader computed painstakingly by hand by almost 2000 people

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.

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######

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

Some very strange ways some people have apparently died.

Some of my favorites:

11 September 1063: Béla I of Hungary, when the Holy Roman Empire decided to launch a military expedition against Hungary to restore young Solomon to the throne, was seriously injured when "his throne broke beneath him" in his manor at Dömös.[68] The king—who was "half-dead", according to the Illuminated Chronicle—was taken to the western borders of his kingdom, where he died at the creek Kanizsa on 11 September 1063.[69][70]

9 March 2001: Bernd Jürgen Brandes was voluntarily slaughtered and eaten by Armin Meiwes, following an appointment via internet. At his request, Meiwes first amputated his penis and they unsuccessfully tried to eat it. Meiwes taped the entire amputation and killing, and conserved and ate Brandes' meat. Meiwes was eventually arrested and sentenced to life in prison. Meiwes became a vegetarian during his prison sentence.

Yandex software source code leak examined, and some history about the companies relationship to the Russian government. An interesting look at what goes on under the hood of a big data advertising business like Google.

cross-posted from: https://discuss.tchncs.de/post/1680842

cross-posted from: https://discuss.tchncs.de/post/1680837

I feel it's relevant, because of it confirming the possibility of "big tech" spying and cooperating with 3-letter agencies.