globalm said:
When I was young, a child could be taken into the local shoe shop and have his feet x-rayed. This could be repeated as often as his parents would allow. At school, we boiled mercury in test tubes sealed with asbestos fibre and sniffed trichloro-ethylene just for fun.
I remember those machines. Bad as they were for the customers, the exposure was worse for the people working there.
Speaking of mercury, I have a cute little story. When as a kid going to my dentist, he would have some toys to choose from his 'Treasure Chest' if you didn't bite him, puke, or faint during the visit. Screaming was frowned on, but tolerated. For me he had a special treat.
Instead of a crummy plastic thing, he would give me a small bottle filled with a few ounces of mercury to play with when I got home. I would pour it in my hand and cover a dime with it. After it being in contact with the mercury by me rubbing it around for a while, the silver would get real shiny. Plus that stuff was sooo heavy in a wonderful way. Eventually it would get dropped in the shag carpet and lost and that would be that till the next visit. It was lots of fun for a 11-12 year old!!! Hah, when you drop some on a hard surface like a wood floor, all those tiny little beads of silver. Just like that Terminator version when you push em together again into one big drop.
Obviously, back then mercury wasn't deadly. Now it can be the cause of some major chemical spill contaminant nastiness. Crazy how that works......
Martin