pftbest

joined 1 year ago
[–] pftbest 8 points 3 months ago

I remember when Falkon 9 was doing its first landings, the whole YouTube comments section was filled with flat earthers claiming it's a CGI. Now you can take a car and go watch landings in person, I wonder where all those people went.

[–] pftbest 4 points 3 months ago

The same law which makes gun recoil happen. If you fire a pistol in vacuum you would still get the same recoil or even stronger. The rocket engine fires a lot of gas molecules instead of bullets at much higher velocity than a bullet, which gives it the constant push/recoil

[–] pftbest 7 points 3 months ago (1 children)

There are cases when electricians working on the street to restore power get shocked by some house generator feeding power back to the grid.

[–] pftbest 4 points 6 months ago* (last edited 6 months ago)

17 thousand years old, but looks great, better than some medieval drawings

[–] pftbest 71 points 7 months ago

Centrifuge spins really fast so you need to balance where you put the samples, or else it will vibrate. The trick is to put them on the opposite side or equally spaced apart from each other.

[–] pftbest 2 points 7 months ago (1 children)

I can't quite understand what is your point? Are you arguing that both JVM and WASM are bad? With this I agree, they both have terrible performance and in an ideal world we wouldn't use any of them.

Are you arguing that JVM bytecode is better than WASM? That's objectively not true. One example is a function pointer in C. To compile it to JVM bytecode you would need to convert it to the virtual call using some very roundabout way. But in WASM you have native support for function pointers, which gives much better flexibility when compiling other languages.

[–] pftbest 7 points 7 months ago (3 children)

Have you seen what it outputs? The same way we can compile C to brainfuck, it doesn't mean it's good or is useful.

[–] pftbest 2 points 7 months ago (7 children)

You can't compile C to java bytecode, they are fundamentally incompatible. But you can compile C to wasm, which is what you want for a good universal bytecode. Java is shit.

[–] pftbest 1 points 8 months ago

But they stink like the rest

[–] pftbest 28 points 9 months ago (4 children)

This is per kilogram of your mass. So if your weight is 80kg then the lethal dose would be 96000mg not 1200. At least that's how I understand this.

[–] pftbest 1 points 9 months ago (1 children)

What does it say? I can't read greek

[–] pftbest 4 points 9 months ago (1 children)

It's in the photo look closer

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