465
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 26 Sep 2024
465 points (98.7% liked)
News
23406 readers
2391 users here now
Welcome to the News community!
Rules:
1. Be civil
Attack the argument, not the person. No racism/sexism/bigotry. Good faith argumentation only. This includes accusing another user of being a bot or paid actor. Trolling is uncivil and is grounds for removal and/or a community ban. Do not respond to rule-breaking content; report it and move on.
2. All posts should contain a source (url) that is as reliable and unbiased as possible and must only contain one link.
Obvious right or left wing sources will be removed at the mods discretion. We have an actively updated blocklist, which you can see here: https://lemmy.world/post/2246130 if you feel like any website is missing, contact the mods. Supporting links can be added in comments or posted seperately but not to the post body.
3. No bots, spam or self-promotion.
Only approved bots, which follow the guidelines for bots set by the instance, are allowed.
4. Post titles should be the same as the article used as source.
Posts which titles don’t match the source won’t be removed, but the autoMod will notify you, and if your title misrepresents the original article, the post will be deleted. If the site changed their headline, the bot might still contact you, just ignore it, we won’t delete your post.
5. Only recent news is allowed.
Posts must be news from the most recent 30 days.
6. All posts must be news articles.
No opinion pieces, Listicles, editorials or celebrity gossip is allowed. All posts will be judged on a case-by-case basis.
7. No duplicate posts.
If a source you used was already posted by someone else, the autoMod will leave a message. Please remove your post if the autoMod is correct. If the post that matches your post is very old, we refer you to rule 5.
8. Misinformation is prohibited.
Misinformation / propaganda is strictly prohibited. Any comment or post containing or linking to misinformation will be removed. If you feel that your post has been removed in error, credible sources must be provided.
9. No link shorteners.
The auto mod will contact you if a link shortener is detected, please delete your post if they are right.
10. Don't copy entire article in your post body
For copyright reasons, you are not allowed to copy an entire article into your post body. This is an instance wide rule, that is strictly enforced in this community.
founded 1 year ago
MODERATORS
The shutdown did have to happen (because the cop is a dumbass) but it obviously should have been done by someone who knows what they are doing. The guy should be suspended for being a dumbass and also for leaving his loaded magazine.
The mechanism they are describing here is the emergency one (like if a human is trapped against the machine by something metal and is being crushed - you need to kill the magnet NOW). There is a slower, much safer mechanism for deactivating the magnet that should have been used here but that would require the officer admitting he had made a mistake and asking for help.
Also I just want to point out that the rifle should be considered no longer safe to use unless thoroughly inspected by an expert. In a similar case some years back, the police officer’s sidearm was pulled into the machine. After retrieval it was found that the weapon had been magnetized by the scanner and as a result the firing pin was able to spontaneously release.
Just hit it against a table a bunch while shouting "stop being a magnet".
Hey, fingers crossed the dude's weapon goes off somewhere in their ammo storage area, taking out as many of these chucklefucks as possible.
Something tells me he won't know that.
well i mean to be fair, if a rifle is ripped out of your hands, and into an MRI machine (which is going to be very loud) and you have no idea on how dangerous/bad for the machine it is. You're going to hit the (probably) very big and very red button marked "E-STOP"
in fact the operator probably doesn't even care about this, they probably only care about the raid itself lmao. The damage is just a function of the raid.
The machine is only loud when it is actively scanning a patient which it doesn’t seem like was happening in this case. Otherwise it’s relatively silent. Also the big button is (in my experience at multiple hospitals) always in a different room behind a box that you have to open. My point being this wasn’t some knee jerk reflex where he had the gun pulled out of his hands and he slapped the button. He physically had to leave the room and find the button to do this.
yeah well i'm assuming that if the gun was "sucked into the machine" from the hands of the police officer, that it would have probably been relatively violent. Generally magnets aren't very polite.
yeah i would have to know the floor layout of the specific place in order to make that judgement tbh. That was just my first insight on that one though. There's a non zero chance he saw it walking in, police are generally pretty observant, and these buttons aren't exactly well hidden either to my knowledge so.
Everything was fine until dickless here shut off the containment grid.
Is that true?
I remember the first time they showed Ghostbusters on network TV. They dubbed 'nose' over 'dick' in that line...
Yippie-kai-yay, Mister Falcon!
I've had it with these monkey-fighting snakes on this Monday through Friday plane.
That, at least, was done intentionally as a joke.
LOL, even "brain" would have worked better.
😂
To give some background on this, the huge magnetic field in an MRI machine is created by a superconducting magnet. A magnetic coil submerged in liquid helium that keeps it ultra cold has virtually no resistance, so the electricity can keep going round and round and round like a racetrack without being bled off by resistance. This lets the machine maintain a very high magnetic field with very little power input.
An MRI technician can gradually ramp up or down the magnetic field power by slowly adding or removing current from the magnet. To retrieve the officer's rifle, they could have slowly ramped down the power with a magnetic power supply while the magnet stayed cold.
When the guy slams the emergency button that does what's called a quench. It adds resistance to the magnet, which starts turning that power into heat, and that heat boils off all the liquid helium and rapidly ramps the magnet down to zero. This should only be done if for example a patient is trapped in the machine by a metal object or similar emergency, because it damages the magnetic coil and also boils away the liquid helium, which itself is worth thousands of dollars.
LAPD (or more specifically, the California taxpayers) are in for a pricey repair bill.
"Should" be in for a pricy repair bill.
Unfortunately there's a lot of precedent, up to and including loss of life, where the police "cannot be held accountable because it might impact their ability to do their duty in the future."
He probably shit his pants at the deafening sound of an MRI machine being quenched, and had to leave quickly to change them.
Yeah, I can imagine someone thinking it's entirely electrical shitting their pants too a sound of Smaug roaring.
MRIs are entirely electrical right? They just use liquid helium for cooling im pretty sure.
Obviously there are a bunch of mechanical parts as well, that goes without saying i think though. Most people wouldn't be able to tell you the difference between mechanical logic and solid state logic anyway.
Yes, you are right, but I meant the safety shutoff mechanism. Normally it just cuts the power to all dangerous stuff or brings it to a safe state. Here it's not "cutting the power to the magnet", it's physically releasing the helium and damaging the superconductor in the process.
yeah, sometimes that's normal though. In the case of a giant magnet that will literally rip you to shreds if you have a piece of metal in you, that's probably a reasonable emergency stop procedure.
Unless there's a second less aggressive emergency stop button that just cuts off the power, in which case this is just a huge fucking shitpost from that police officer
You don't have to quench a magnet if it isn't an emergency, field engineera can ramp it down slowly. Jfc what a moron.
you mean to tell me someone who isn't an MRI tech doesn't know how to operate an MRI?
That's weird.
He already got suspended. His weapon was suspended there, on this outside of the MRI machine.
Suspended?
With pay of course.
Then a medal for bravery against a magnet.
Later a promotion after his buddies clear him of all wrong doing.