|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
98.204.138.158
In Reply to: RE: I'm radioactive. posted by scrbblkng on February 13, 2021 at 14:38:54
Haven't seen one of those in half a century. My dad was a photographer, among other things, and we used it to remove dust from 35MM B&W negatives before enlarging and producing 8X10 prints.
Follow Ups:
I used them as well for dusting off negatives. Probably still have one or two buried in a drawer full of photography paraphenalia.
'for dusting off negatives'
but no banding effects from interacting with the film's actinic radiation?
I would have thought any such exposure should be avoided
I remember comments or warnings against exposure to old wristwatch radium dials ... maybe that was an old urban legend though
regards,
I used to use one of these same brushes in the dark room when I was in grad school...enlarging electron microscopy images. Nice stroll down memory lane.
Po 210 is a pretty weak alpha emitter. Won't penetrate skin so it's not much of a radiation hazard. With a 136 year half life, it will be useable for many lifetimes.
It is an alpha emitter so there is no risk if you don't eat it
I believe it's 138 days ... maybe that's what he meant & still wouldn't carry one around in my watch pocket
My bad....misread the unit value.
that's what I told John, I figured that your typing outran the thought
stay warm!
regards,
hope your Dad didn't carry it around in his watch pocket for the first 14 months after he bought it
I remember those making a stir in, I think it was, Mechanics Illustrated
I miss seeing those in the various waiting rooms like 'back in the day'
cheers!
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: