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'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

Nice article reviewing hash tables and how python dictionaries are implemented with them.

The internet is a series of tubes, try not to get lost.

This community is dedicated to the most interesting engineering/science projects and papers out there. Lots of youtube videos, along with scientific papers ( <3 https://www.sci-hub.st/ <3 ) and book recommendations that are not only Interesting, but also Rigorous to some degree, without being exclusionary.

sullen.social/c/series_of_tubes

!series_of_tubes@sullen.social

https://sullen.social/c/series_of_tubes

More people ought to feel allowed and able to think about ideas that are worth thinking about!

https://lemmy.sdf.org/post/425110

cross-posted from: https://sullen.social/post/59233

Really great description of the american sprawl. These issues eat away my soul every single day, and this guy wrote about it in 1973.

Some of my favorite excerpts:

The invention of the personal automobile, and destruction of public transportation, was a triumph of capitalist drug-peddling; suddenly, all at once, everyone’s personal mobility became dependent on a single, new commodity, gasoline. Without it, we are unable to function, since urban sprawl and suburbanization now means we can’t even walk to work if we wanted to.

“The typical American devotes more than 1500 hours a year (which is 30 hours a week, or 4 hours a day, including Sundays) to his [or her] car. This includes the time spent behind the wheel, both in motion and stopped, the hours of work to pay for it and to pay for gas, tires, tolls, insurance, tickets, and taxes .Thus it takes this American 1500 hours to go 6000 miles (in the course of a year). Three and a half miles take him (or her) one hour. In countries that do not have a transportation industry, people travel at exactly this speed on foot, with the added advantage that they can go wherever they want and aren’t restricted to asphalt roads.”

You’ll observe that automobile capitalism has thought of everything. Just when the car is killing the car, it arranges for the alternatives to disappear, thus making the car compulsory. So first the capitalist state allowed the rail connections between the cities and the surrounding countryside to fall to pieces, and then it did away with them.

These splintered cities are strung out along empty streets lined with identical developments; and their urban landscape (a desert) says, “These streets are made for driving as quickly as possible from work to home and vice versa. You go through here, you don’t live here. At the end of the workday everyone ought to stay at home, and anyone found on the street after nightfall should be considered suspect of plotting evil.” In some American cities the act of strolling in the streets at night is grounds for suspicion of a crime.

No means of fast transportation and escape will ever compensate for the vexation of living in an uninhabitable city in which no one feels at home or the irritation of only going into the city to work or, on the other hand, to be alone and sleep.

https://lemmygrad.ml/comment/1364150

Open source way to connect your devices together. I just got it and it seems pretty dope. Anyone used this, or something similar before?