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Post by Dr. Kobb on May 19, 2023 17:50:28 GMT -5
Is there any harm in putting a fridge magnet in the same postal package as a DVD or CD?
I know back in the analog tape trading days it was a no-no, and I know magnets can mess up some digital stuff.
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Post by Deeky on May 19, 2023 17:59:13 GMT -5
No harm. Those are burned with lasers, not magnets.
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Post by Dr. Kobb on May 24, 2023 10:54:23 GMT -5
So if I understand things correctly -
magnet beats VHS tape VCR beats magnet magnet beats PC DVD-RW beats magnet
Weird.
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Post by Dr. Kobb on May 24, 2023 10:55:59 GMT -5
Where did the derisive laughter expression "Har-dee-har!" come from?
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El Santo
Cock Goddess
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Post by El Santo on May 24, 2023 13:10:48 GMT -5
So if I understand things correctly -
magnet beats VHS tape VCR beats magnet magnet beats PC DVD-RW beats magnet
Weird.
What's happening here is that tape in all its forms, along with the recording media used in hard drives and all three generations of floppy discs, use the same physics to encode data. A strip or sheet of celluloid or polyester is coated with an emulsion of magnetically sensitive particles-- iron, nickel, cobalt, chromium, or oxides thereof. The medium is then exposed to a highly localized magnetic field, which alters the particles' magnetic charge and polarity to create an analogue for the data being recorded. The playback head in the machine also contains magnets, which in theory are strong enough to respond to the magnetic residue imparted to the particles on the medium, but not strong enough to rearrange them into new configurations. But if you bring a stronger magnetic field into contact with the tape (or disc, or whatever), you can rearrange the charges of the emulsified particles in totally uncontrolled ways, degrading or even erasing outright whatever information had been encoded into them. Digital optical storage media (laser discs, CDs, DVDs, Blu-Ray discs, etc.) use completely different physics. They start by encoding the information to be recorded into a string of ones and zeros according to a standard unique to each medium. That code is then etched, on a microscopic scale, into the surface of an aluminum disc using a laser; the disc is then laminated with plastic to protect the inscribed data against hazards like oxidation, abrasion, and schmutz. During playback, another laser reads the inscribed code, and sends it to a microprocessor for translation back into whatever form the information originally had. Home-recordable discs work similarly, but instead of an aluminum core, they have a layer of photosensitive dye in between the two sheets of transparent plastic. Because there's no magnetism involved in the process anywhere, magnetic fields pose no threat to the data. It's sort of like how turning off the lights doesn't stop you from hearing, you know?
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Post by Deeky on May 24, 2023 15:01:59 GMT -5
Where did the derisive laughter expression "Har-dee-har!" come from? 🤷♂️
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Post by Dr. Kobb on May 24, 2023 18:08:32 GMT -5
So if I understand things correctly -
magnet beats VHS tape VCR beats magnet magnet beats PC DVD-RW beats magnet
Weird.
What's happening here is that tape in all its forms, along with the recording media used in hard drives and all three generations of floppy discs, use the same physics to encode data. A strip or sheet of celluloid or polyester is coated with an emulsion of magnetically sensitive particles-- iron, nickel, cobalt, chromium, or oxides thereof. The medium is then exposed to a highly localized magnetic field, which alters the particles' magnetic charge and polarity to create an analogue for the data being recorded. The playback head in the machine also contains magnets, which in theory are strong enough to respond to the magnetic residue imparted to the particles on the medium, but not strong enough to rearrange them into new configurations. But if you bring a stronger magnetic field into contact with the tape (or disc, or whatever), you can rearrange the charges of the emulsified particles in totally uncontrolled ways, degrading or even erasing outright whatever information had been encoded into them. Digital optical storage media (laser discs, CDs, DVDs, Blu-Ray discs, etc.) use completely different physics. They start by encoding the information to be recorded into a string of ones and zeros according to a standard unique to each medium. That code is then etched, on a microscopic scale, into the surface of an aluminum disc using a laser; the disc is then laminated with plastic to protect the inscribed data against hazards like oxidation, abrasion, and schmutz. During playback, another laser reads the inscribed code, and sends it to a microprocessor for translation back into whatever form the information originally had. Home-recordable discs work similarly, but instead of an aluminum core, they have a layer of photosensitive dye in between the two sheets of transparent plastic. Because there's no magnetism involved in the process anywhere, magnetic fields pose no threat to the data. It's sort of like how turning off the lights doesn't stop you from hearing, you know? So, forgive the continued stupid, but how come a strong magnet can wreck a PC? Do they effectively short out all the electronic impulses going on? I think you can even wreck a PC with a magnet when it's off. Correct?
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Post by Dr. Kobb on May 24, 2023 18:09:35 GMT -5
Where did the derisive laughter expression "Har-dee-har!" come from? 🤷♂️ Thanks! Good a guess as any.
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Post by Deeky on May 24, 2023 18:53:38 GMT -5
So, forgive the continued stupid, but how come a strong magnet can wreck a PC? Do they effectively short out all the electronic impulses going on? I think you can even wreck a PC with a magnet when it's off. Correct? Hard drives are also magnetic, just in disk shape.
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Post by Lemmy Caution on May 24, 2023 20:18:45 GMT -5
So, forgive the continued stupid, but how come a strong magnet can wreck a PC? Do they effectively short out all the electronic impulses going on? I think you can even wreck a PC with a magnet when it's off. Correct? Hard drives are also magnetic, just in disk shape. You do, of course, have other options:
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Post by Dr. Kobb on Jun 10, 2023 12:40:20 GMT -5
When they say to clean a gun after every firing, what exactly are they talking about. I'm considering a firearms purchase, but not interested in having to take the fucking thing apart and putting it back together. What all does gun cleaning entail?
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Post by Lemmy Caution on Jun 12, 2023 12:11:49 GMT -5
When they say to clean a gun after every firing, what exactly are they talking about. I'm considering a firearms purchase, but not interested in having to take the fucking thing apart and putting it back together. What all does gun cleaning entail? Short version, since you haven't specified the type of firearm:
When you fire a gun, a certain amount of material gets deposited inside the barrel --propellant residue, lead (if you're using soft-nosed bullets), copper (from metal-jacketed ammo), and I assume other kinds of shmutz depending on the kind of gun and type of ammunition you use. This builds up over time and can lead to problems with the firearm (jamming, misfire, corrosion inside the barrel, failure to cycle the action if it's a semi-automatic, drop-off in accuracy, etc.)
It's also a good idea to clean a gun so you can check if any of the parts are worn or damaged --this is why a thorough cleaning usually includes disassembly.
In the absolute worst case scenario, a neglected firearm will end up harming the person firing it, instead of the target.
(Compiled from my relatively limited experience owning/shooting firearms and a bit of careful Google-fu.)
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Post by Dr. Kobb on Jun 12, 2023 19:00:40 GMT -5
So I'm thinking just a shotgun and/or maybe a revolver. I figure those two are the firearms equivalent of standard vs automatic. That is, relatively simple and presumably easy to clean/work on compared to guns with more intricate, modern firing mechanisms. I'm really leaning towards the shotgun because my whole reasoning for getting a gun is last line of defense/home intrusion scenario. I don't intend on spending a bunch of time at the shooting range, and apparently it will do the job in close quarters even if you're scared/bad aim. I would like to experience firing one a few times just to get a measure of the kick so I'll know what to expect should that fateful night ever occur. Since it's just me and the cat, I am even considering keeping the thing loaded near my bed. I know a significant percentage of gun owners can't do that due to having kids/guests/drunks/cleaning services/sleepwalking/etc. A drawback to the awesome blast effect of a shotgun is that it can cause a mess. Not only the intruder, but holes in walls and doors and such. I see this as a plus though. I can clean/fix shit up later, but I want something that's going to drop an adversary.
As far as a revolver goes, that's my brother-in-law talking. He's quite the firearms aficionado and suggested that one would be a good idea (even if I do get the shotgun). He's got me reading a manual on pistols prior to a visit to a indoor gun range he's fond of.
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Post by Deeky on Jun 12, 2023 19:15:37 GMT -5
I own a shotgun and semiautomatic pistol for those very reasons.
I've fired (and cleaned) the shotgun exactly once.
The pistol, multiple times. I didn't clean it after every trip to the range but every second or third time.
But honestly, if you're not dragging it through the muck, it's not going to need a thorough going over every time you touch it.
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Post by Dr. Kobb on Jun 12, 2023 19:31:34 GMT -5
I own a shotgun and semiautomatic pistol for those very reasons. I've fired (and cleaned) the shotgun exactly once. The pistol, multiple times. I didn't clean it after every trip to the range but every second or third time. But honestly, if you're not dragging it through the muck, it's not going to need a thorough going over every time you touch it. How was the kick from the shotgun?
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Post by Deeky on Jun 12, 2023 19:43:11 GMT -5
How was the kick from the shotgun? Pretty solid. You'll definitely need to shoulder it.
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Post by Lemmy Caution on Jun 12, 2023 22:46:15 GMT -5
So I'm thinking just a shotgun and/or maybe a revolver. I figure those two are the firearms equivalent of standard vs automatic. That is, relatively simple and presumably easy to clean/work on compared to guns with more intricate, modern firing mechanisms. I'm really leaning towards the shotgun because my whole reasoning for getting a gun is last line of defense/home intrusion scenario. I don't intend on spending a bunch of time at the shooting range, and apparently it will do the job in close quarters even if you're scared/bad aim. I would like to experience firing one a few times just to get a measure of the kick so I'll know what to expect should that fateful night ever occur. Since it's just me and the cat, I am even considering keeping the thing loaded near my bed. I know a significant percentage of gun owners can't do that due to having kids/guests/drunks/cleaning services/sleepwalking/etc. A drawback to the awesome blast effect of a shotgun is that it can cause a mess. Not only the intruder, but holes in walls and doors and such. I see this as a plus though. I can clean/fix shit up later, but I want something that's going to drop an adversary.
As far as a revolver goes, that's my brother-in-law talking. He's quite the firearms aficionado and suggested that one would be a good idea (even if I do get the shotgun). He's got me reading a manual on pistols prior to a visit to a indoor gun range he's fond of.
You're going to know what's best for you. That said, reasonably, what are the odds of a home-invasion type scenario where you live, and do you know your best escape routes in such a scenario? Not to discourage you from doing what you want or think best, but these are good things to know generally. Revolvers have a lower ammunition capacity than semi-automatics, but they also aren't going to jam up like a semi-automatic might. In the event of a misfire, the cylinder can still advance to the next round (usually). As far as overpenetration goes: most home break-in baddies aren't going to be wearing body armor, and any confrontation is going to be at close range. At short distances, even birdshot is going to leave a really ugly hole in just about anything/anyone. If you practice with the revolver, you don't necessarily need anything terribly high powered to drop a baddie (though I really hope you never actually come to doing that). Again, based on some personal knowledge augmented by Uncle Google. Deeky is gonna have greater personal background...
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Post by Dr. Kobb on Jun 13, 2023 11:48:23 GMT -5
So I'm thinking just a shotgun and/or maybe a revolver. I figure those two are the firearms equivalent of standard vs automatic. That is, relatively simple and presumably easy to clean/work on compared to guns with more intricate, modern firing mechanisms. I'm really leaning towards the shotgun because my whole reasoning for getting a gun is last line of defense/home intrusion scenario. I don't intend on spending a bunch of time at the shooting range, and apparently it will do the job in close quarters even if you're scared/bad aim. I would like to experience firing one a few times just to get a measure of the kick so I'll know what to expect should that fateful night ever occur. Since it's just me and the cat, I am even considering keeping the thing loaded near my bed. I know a significant percentage of gun owners can't do that due to having kids/guests/drunks/cleaning services/sleepwalking/etc. A drawback to the awesome blast effect of a shotgun is that it can cause a mess. Not only the intruder, but holes in walls and doors and such. I see this as a plus though. I can clean/fix shit up later, but I want something that's going to drop an adversary.
As far as a revolver goes, that's my brother-in-law talking. He's quite the firearms aficionado and suggested that one would be a good idea (even if I do get the shotgun). He's got me reading a manual on pistols prior to a visit to a indoor gun range he's fond of.
You're going to know what's best for you. That said, reasonably, what are the odds of a home-invasion type scenario where you live, and do you know your best escape routes in such a scenario? Not to discourage you from doing what you want or think best, but these are good things to know generally. Revolvers have a lower ammunition capacity than semi-automatics, but they also aren't going to jam up like a semi-automatic might. In the event of a misfire, the cylinder can still advance to the next round (usually). As far as overpenetration goes: most home break-in baddies aren't going to be wearing body armor, and any confrontation is going to be at close range. At short distances, even birdshot is going to leave a really ugly hole in just about anything/anyone. If you practice with the revolver, you don't necessarily need anything terribly high powered to drop a baddie (though I really hope you never actually come to doing that). Again, based on some personal knowledge augmented by Uncle Google. Deeky is gonna have greater personal background... Yes, this would be strictly worst case/last stand scenario. Most likely I'd never ever need to utilize a gun. I've lived in much worse situations/areas in the past and have only ever suffered a break-in once thirty-something years ago up in Roswell, GA. And that was a loser who I took pity on who turned around and crawled in through a window and stole some spare change. Joke was on him because I barely had a dime to my name at the time. Fortunately, this area of town is relatively quiet and most of the neighbors are loaded for bear.
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Post by Dr. Kobb on Jun 15, 2023 11:20:23 GMT -5
Is it just me, or does every bluegrass song sound the same?
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Post by Deeky on Jun 15, 2023 15:12:17 GMT -5
There is a surfeit of banjo in those songs.
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