potato51 said:
That's hilarious! I work in a lab, and originally I didn't know what the hell to call them.
But eventually I discovered they were called "Underpads" like these
https://www1.fishersci.com/Coupon?cid=1341&gid=306048.
Oh yeah, we use those in MRI research, as when your project entails scanning monkeys or the elderly, well inevitably you'll have a nice parting gift waiting for you when youre done scanning them.
Another mildly humourous anecdote from the world of imaging research:
Scan this guy. Perfectly healthy. His scans look horrible, lots of artifact coming from something metallic. Not good. We take him out, do another thorough metal check, and try scanning again. Images still are full of noise.
We scrap the scan, and debrief the guy. Ask him the usual questions. Nothing. Nothing he has done, so he says, would cause the things we're seeing. No implanted metal, etc etc.
Cleaning up. I find all of these iron filings/shavings everywhere in the magnet. Wherever his head was,there were tons of these little filings. Argh. I finally get them all cleaned up, and tell one of our physicists.
He asks, was your subject balding?
Yeah, I guess.
Oh, he probably sprayed hair in a can all over his scalp and was too embarassed to tell you that what he did; you that stuff is basically thin metal filings with glue...
The things the manual doesnt prepare you for.