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Is this another hoax like that recent photo of the cobalt(?) rod in someone's hand?
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Nov 3, 2022 04:30
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I am looking at the cylinder video and I can't tell what happens in it.
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Nov 3, 2022 04:37
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John Wick of Dogs posted:I am looking at the cylinder video and I can't tell what happens in it. The implication is that the radiation inside of the cylinder is so strong that it's loving with the sensor in the camera
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Nov 3, 2022 04:40
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Mister Speaker posted:Is this another hoax like that recent photo of the cobalt(?) rod in someone's hand? Bare-assed hands aren't known to block much radiation energetic enough to be detected on a phone sensor.
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Nov 3, 2022 04:40
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Wasabi the J posted:Bare-assed hands aren't known to block much radiation energetic enough to be detected on a phone sensor. Oh wow lol, I didn't even pay attention to that part of the video. Yeah and the noise is sometimes a split second late too. The prop does look convincing though, at least to my imagination.
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Nov 3, 2022 04:44
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couldn't beta radiation be detected by a camera sensor? or is it only gamma?
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Nov 3, 2022 04:48
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Any type could be detected by the sensor but alpha/beta would have a hard time making it there.
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Nov 3, 2022 04:54
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I guess if you had a thin smartphone lens (like a few mm or something) electrons could do it at an MeV or so and would probably be blocked by the thick part of your hand. Unless I hosed up the math. That being said my guess is it's fake.
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Nov 3, 2022 05:13
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Poor Pecas, saw some Tequila and shied.
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Nov 3, 2022 05:20
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https://i.imgur.com/Dmr6Fwg.mp4 Mod edit: fingering someone's butthole while they are moving stuff isn't just an Osha violation it's sexual assault! Somebody fucked around with this message at 04:22 on Nov 4, 2022 |
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Nov 3, 2022 05:28
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Eeyo posted:That being said my guess is it's fake. It is. The giveaway is that the noise pattern has both lighter and darker pixels than the underlying scene, while radiation will only produce lighter pixels. They just did a black and white gaussian noise pattern and overlaid it on the video. their technique:  what it should look more like, imo:  or maybe this:  not sure how the sensor would interpret one subpixel maxing out -- depends on the debayering algorithm etc. anyway there wouldn't be any darker pixels, that's for sure Sagebrush fucked around with this message at 05:49 on Nov 3, 2022 |
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Nov 3, 2022 05:40
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I don't think your pattern is right either - the radiation isn't going to saturate all three colour channels on one pixel while leaving the surrounding pixels untouched. e: that second one seems more plausible for sure
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Nov 3, 2022 05:49
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For a real radiation vs camera sensor comparison, here's a GoPro, inside a lead tube, looking through 1/2" of leaded glass, with another 1/4" lead plate on top of it, on a journey through an 3MeV electron beam industrial irradiator https://www.youtube.com/watch?v=Uf4Ux4SlyT4 Camera part: 
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Nov 3, 2022 05:54
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Sagebrush posted:
https://www.youtube.com/watch?v=PNXC7e66KM0 That 1/20th of a second exposure would be about the steady state 'oh god, please drop me' activity from one of the meme-sources. You can see it causes the camera's debayering filters to freak out very colorfully.
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Nov 3, 2022 06:00
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Sagebrush posted:It is. The giveaway is that the noise pattern has both lighter and darker pixels than the underlying scene, while radiation will only produce lighter pixels. They just did a black and white gaussian noise pattern and overlaid it on the video. could be the camera software of the smartphone freaking out
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Nov 3, 2022 08:09
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PurpleXVI posted:Fill one of those firefighting planes they use for forest fires with paint and just splash the entire building from the sky. Mozi posted:Use a drone as a spotter for a mortar that launches balloons filled with paint. I'm torn
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Nov 3, 2022 09:50
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Wasn't there a guy here with a collection of radioactive sources, Genesplicer or something? If he's still around he can take a quick video for us and rest this derail for ever.
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Nov 3, 2022 10:09
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John Wick of Dogs posted:I am looking at the cylinder video and I can't tell what happens in it.
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Nov 3, 2022 11:07
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there's a separate clip where someone is holding a geiger counter over the thing and there's zero noise in it, soooo anyways, have a meme 
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Nov 3, 2022 11:46
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I could never figure out how to get past this bit in Half Life.
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Nov 3, 2022 12:19
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I still remember the anecdote I was told that university chemistry courses in Denmark used to include being able to identify chemicals by taste.
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Nov 3, 2022 13:02
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PurpleXVI posted:I still remember the anecdote I was told that university chemistry courses in Denmark used to include being able to identify chemicals by taste. I was taught some basics by a dairy technologists who could tell the pH of cleaning solutions by touch. As in, he'd put his fingers in the beam of a cleaning solution being run, rub it between his thumb and index finger and go "pH 10". he was right every time. Chemical industry before the invention of workplace health and safety must've been wild
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Nov 3, 2022 13:06
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champagne posting posted:I was taught some basics by a dairy technologists who could tell the pH of cleaning solutions by touch. As in, he'd put his fingers in the beam of a cleaning solution being run, rub it between his thumb and index finger and go "pH 10". Saponifying my flesh for a cool party trick
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Nov 3, 2022 13:21
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PurpleXVI posted:I still remember the anecdote I was told that university chemistry courses in Denmark used to include being able to identify chemicals by taste. We tasted different alcohols in elementary chemistry class. Didn't drink them, just tasted with tongue. Then again our biology teacher also told that she had years ago brought mystery liquid for pupils to taste before revealing that it was fresh cow piss. It tasted salty, like sweat.
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Nov 3, 2022 13:21
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It reminds me of that tumblr post of the guy pulling a pizza out of the over with his bare hands There are better ways to do this
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Nov 3, 2022 13:21
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Rigged Death Trap posted:It reminds me of that tumblr post of the guy pulling a pizza out of the over with his bare hands quote:Today, my boyfriend of 2 weeks said that he was going to cook me dinner. After waiting for the frozen pizza that he decided to make for me to be completely cooked, he said, "Oh I hate this part", reached into the oven with his bare hands and took out the pizza, all while screaming. He is 24.
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Nov 3, 2022 13:24
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PurpleXVI posted:I still remember the anecdote I was told that university chemistry courses in Denmark used to include being able to identify chemicals by taste. Heh, I'm pretty sure I've seen people in AI say that they can tell what is leaking from their cars by smelling/tasting.
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Nov 3, 2022 13:27
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SimonSays posted:Saponifying my flesh for a cool party trick Starting a great new genre of music CLEAN METAL
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Nov 3, 2022 13:32
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It came from Reddit: My elderly landlord took 6h to do this 'temporary fix' today instead of hiring a proper sparky. Is it safe?
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Nov 3, 2022 13:34
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By popular demand posted:Starting a great new genre of music CLEAN METAL We are alkaline genocide This is dissolve my flesh and bones and flush me down the toilet
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Nov 3, 2022 13:40
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I didn't like their attempt at gansta rap: Bleach Blondes, Ammonia in the Bank
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Nov 3, 2022 13:51
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Nov 3, 2022 14:19
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https://i.imgur.com/bpd3oVo.mp4
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Nov 3, 2022 15:20
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It's a free car wash!
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Nov 3, 2022 15:29
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Nenonen posted:It's a free car wash! Here’s another one that crops up in this thread from time to time. https://i.imgur.com/5VIgh5t.gifv
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Nov 3, 2022 15:49
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Uthor posted:Heh, I'm pretty sure I've seen people in AI say that they can tell what is leaking from their cars by smelling/tasting. Oh yeah, folks do that all the time. But it's safe because it's just regular car stuff, not dangerous things like chemicals.
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Nov 3, 2022 15:50
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Uthor posted:Heh, I'm pretty sure I've seen people in AI say that they can tell what is leaking from their cars by smelling/tasting. I mean, car fluids all have real strong, distinct smells. gently caress tasting any of that poo poo!
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Nov 3, 2022 15:52
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By popular demand posted:Wasn't there a guy here with a collection of radioactive sources, Genesplicer or something? He caught some wierd lymphatic system cancer that's usually only seen in workers in uranium mines and died. Real sad story.
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Nov 3, 2022 15:53
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Uthor posted:Heh, I'm pretty sure I've seen people in AI say that they can tell what is leaking from their cars by smelling/tasting. Yeah, if you don't have a big enough puddle of fluid to see color on the ground under your car, you just get a couple fingertips wet, smell and lick it, and you can pretty quickly tell if it's coolant, oil, brake fluid, or A/C condensation.
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Nov 3, 2022 15:56
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monolithburger posted:It came from Reddit: Aside from horror this installation, it's really cute that Australians call their electricians "sparkies". 
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