historicaldocuments

joined 2 months ago

Most traditional hollowpoints aren't designed to break apart into shrapnel. They're designed to expand in a controlled manner. The FBI protocol is that it should expand after passing through four layers of cloth (denim, fleece, cotton, and something else), then penetrate between 12 and 18 inches through standardized ballistics gel.

A non expanding bullet might get double that much penetration if it doesn't start tumbling. Projectiles designed for large, dangerous game are designed for no expansion and maximum penetration. It all depends on what the goal is.

There's a lot of youtube where people have put that kind of stuff to the test if you want to dig. There are a few results out there that are non-intuitive. For example, a regular 38 special hollow point out of a modern revolver often doesn't get enough velocity to expand, so the cavity will fill up with cloth and over penetrate the gel even though it's substantially less powerful than a 9mm.

Lots of rose colored glasses being worn here.

I will take modern rust prevention tech every day all day. The control modules and circuit boards are a hole in repairablity, and there'll be a wall where nobody makes them anymore and the specs are not published (considered proprietary/trade secret/whatever), and that whole vehicle will just have to be scrapped. The world won't ever see the end of old body-on-frame vehicles with crate engines. Speaking for myself the "rose colored glasses" is a wish for the best of both worlds. I wouldn't doubt it's out there being done somewhere, but I'm sure it's cost prohibitive to do it, or people are doing it for themselves.

Maybe I'm just complaining because I don't personally have the time/knowledge/workspace to do what I want in that area. C’est la vie.

[–] historicaldocuments@lemmy.world 3 points 6 hours ago (2 children)

No. They keep the projectile from over-penetrating the intended target.

[–] historicaldocuments@lemmy.world 1 points 2 days ago (1 children)

Who defines the untrusted applications though?

¯\(ツ)/¯

If GNOME wrote it then they probably trust it. If you're using GNOME, then you've accepted their security model on some level.

At least you know to go look for it. Attackers will only get more sophisticated:

https://ioctl.fail/preliminary-analysis-of-aur-malware/

[–] historicaldocuments@lemmy.world 1 points 2 days ago (3 children)

according to their stated security model, untrusted applications must not be allowed to communicate with the secret service.

That won't be a popular stance to take when someone eventually steals a bunch of cached, unlocked credentials off of D-BUS because of an oversight somewhere in the npm/aur/pip/cargo/whatever ecosystem.

More rabbit hole:

[–] historicaldocuments@lemmy.world 1 points 3 days ago (1 children)

What kind of car?

[–] historicaldocuments@lemmy.world 6 points 3 days ago (8 children)

They used to be. Go back far enough in time and you could climb up under the hood into the engine bay to work on it. All that went by the wayside to get smaller packaging, lighter weight, and better fuel efficiency.

Now you need special tools or special code readers to solve/diagnose all vehicle problems. The large scale farmers are dealing with this now with the large combines and harvesters needing a tech with special equipment to read all the codes where the older tractors from the 70s and 80s can be repaired.

Well, nothing to do but start at the first one and work our way down...