55 points

How does one acquire 350 smoke detectors?

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49 points

Maybe they’re friends with David Hahn

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18 points

Hahn attained Eagle Scout rank shortly after his lab was dismantled

Is one of my favorite sentences ever 😂

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4 points

I feel like he earned eagle the second he got the reactor running. Like all crimes aside he pulled off a rather impressive feat.

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13 points

Dunno, then feds usually show up when I hit triple digits.

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3 points

Probably from demo’ing an old building. Or 20.

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15 points
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Work for a contractor who replaces them in condos or something. They need to be replaced every 10 years, and with semi modern codes a 2-3 bedroom unit will have 3-5. A 20 unit condo with 4 stories would be 240-400 smoke alarms to replace every decade.

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12 points

Oh man one time my apt building was being remodeled and they threw everything into a dumpster out back and left for a week. The smoke detectors in the pile were going off randomly all the damn time. I must have smashed 30 of those fuckers against the wall to shut them up.

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3 points
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I hate it when people do shit like that.

I lived in an apartment complex once where someone got a new (used) car with one of those old style car alarms that doesn’t turn off. They parked it in the parking garage and then left for the day. That shit was going off for like 6 hours. The cops were called and wouldn’t do shit. Cops looked at the car and were like “Doesn’t appear anyone tried to break in.” I’m like no shit dickhead, that’s not why we’re calling. Can you tow it out of here? But they wouldn’t tow it because it was on private property. I thought about breaking their windows but didn’t do it. I should have done something somewhat less destructive and egged it or something. Assholes.

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1 point

By getting on a very select list.

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2 points

You could win the Contractor’s Clearinghouse Sweepstakes! A lifetime supply of smoke detectors!

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18 points

from the big stew out back

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177 points

The grain on the image is a nice touch.

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39 points

I was just about to post the same thing. The continuity on the radiation photography is great.

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23 points

A STALKER IN THE ZONE

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5 points

Definitely a Fruit Punch manifesting in that thing.

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51 points

Would the grain show up in digital pictures as well or only on film? I know why it appears on film but the gnomes that work my cell phone camera won’t give me a straight answer.

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14 points

IIRC radiation would cause grain on a cell phone camers.

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13 points

https://openscience.isae-supaero.fr/digitalCollection/DigitalCollectionAttachmentDownloadHandler.ashx?parentDocumentId=6163&documentId=11848&skipWatermark=true&skipCopyright=true

Pretty much, but highly dependent on the energy of the ionizing radiation. Lower would come out as a dull grain, higher would show up as bright spots. Neither would look like this post though lol

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24 points

I don’t think it would look the same, if it was a CMOS sensor, I think you’d see lots of bright white pixels

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6 points

Not exactly the same, but an electron beam puts a lot of noise in the image: https://youtu.be/Uf4Ux4SlyT4

Also I’ve heard the international space station gets a lot of dead pixels on their cameras from cosmic radiation.

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19 points

I’m not even sure it would show up on film either. But for CCD cameras (aka phone cameras and basically all modern cameras), 350 americium buttons buttons from a smoke detector in a wide “stew” that far away would produce nowhere near enough ionizing radiation to do that. On top of it, americium-241 is an alpha emitter, meaning that even if alpha particles reached the lens, the lens itself would block a good amount an alpha. This video gives a demo of a CCD without protection over it with americium and other various emitters :)

https://m.youtube.com/watch?v=jFNvYA7731o

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4 points

Way to bust that with reality! Kept the fact checks coming!

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4 points

Aren’t CCDs going the way of the dinosaur even in phones now? I thought the whole industry had more or less shifted to CMOS sensors now?

Very cool video regardless though

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1 point
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