Viewing profile — SyzygyRhythm

Neat! Not to toot my own horn too much, but I put together a similar project for my cat's exercise wheel. Hackaday featured it a while back: https://hackaday.com/2023/04/02/spy-on-…

This just plugs into an outlet and offsets whatever usage you have, though. No need for a battery or matching load. It just subtracts 180 watts from your household usage. These typ…

Thanks, though I realize (thanks to tptacek) that I didn't properly emphasize that the determinant must be constant but non-zero. If the determinant were zero, then (for basically …

Yeah, the only possible counterexamples would have a constant but non-zero determinant (in this case it was -2).

Are you at least a little familiar with linear algebra? If so, you've probably heard of the determinant. It's a certain way of "summarizing" a matrix with one value. The determinan…

As others said, you can run more than one at a time, but even singly, 24 GB can be very useful in a hybrid approach. For instance, I recently had to process hundreds of high-res bl…

Movie-Nedry struck me as a certain kind of hacker trope (but whom I've also met in real life!) where part of their "compensation" is access to unusual and high end computer hardwar…

That's why 1 is not generally considered prime. If it was, 2 could be factored as 2, 2x1, 2x1x1, etc., which breaks the uniqueness property.

No. And in fact it annoys me greatly that our work IT department forces a reboot once a month. My desktop is like an actual desktop. I have my tools laid out exactly how I want the…

To get speed from velocity, you need a square root, which is also awful (for the same reason that abs is awful).

Cheat answer: velocity is a vector, and can be negative, while KE is a scalar and has to be positive. Therefore you have to square v to get rid of the minus sign. Why not take the …

Why isn't the shifter built with a log2 arrangement, shifting 32-16-8-4-2-1 bits? Takes fewer sub-stages and doesn't require a separate decoder for the input. The article mentions …

Sometimes you have to optimize other people's code. Also, sometimes code behaves unexpectedly depending on the data, say over a certain size threshold. And sometimes it behaves dif…

Doh! You are correct. I had been looking at a previous paper (which this new paper references). The previous paper showed that you can use any non-linearity in QM to solve NP-compl…

Yes, I think that was implied in my original post, that if you define |0> as logical 1 then it works as an AND. It just seems confusing and unnecessary when they could have framed …

I was skimming the paper and came to this: > This transformation is like an AND gate - it ignores the index qubit and places the flag qubit in the state |1> if and only if either o…

We always try to inform game devs about correctness issues, but generally we can push out a driver fix before the devs can fix things on their side, so that pretty much always happ…

There are many, many, cases like this, including correctness fixes. One recent example I remember had a shader that computed: x = a / b * b The optimizer was allowed, but not oblig…

The article mentions that thin-walled copper tube can be used, but then says a precision lathe is required. But you can easily buy off-the-shelf copper tube with 1.6 or 2.0 mm diam…

Numerous times now, using Tesla FSD, I've found the car seemingly drifting from the center of the lane, only to have motorcycles buzz by at high speed on the opposite side. It's ve…

Boron always seemed like an under-studied element to me. Starting from the bottom, hydrogen of course is very well understood, helium not useful for much, lithium used for many thi…

There are a number of ways of looking at this, which others have answered, but here's another: The kinetic and potential energy of a 1 kg mass in orbit is around 33 MJ. The chemica…

That's already how civilization works. There's no one person that knows everything about (say) modern food production, from top to bottom. If it ever stopped working (because too m…

The ship computers in the old game Privateer (and probably Wing Commander) had a pretty nice pixel font. Most of the characters were 3x4, but with a few niceties: descenders (j, p,…

Early versions of Unreal Engine had these animated procedural textures that would produce sparks, fire effects, etc. The odd part is that when you paused the game, the animated tex…