
Great Idea: A clock you can read in the dark!
Bad Idea: The damn clock face glows because it's f@!#$ng painted with RADIUM, which will give the customer 8 hours of close-range exposure to radioactivity every night....for years. This clock will give you cancer.
My folks, antique collectors, actually own one such clock..And as of the early 90's (the last time I saw it) it still glowed..50-60 years on..
Alot of different manufacturers made clocks with Radium-painted dials at the time. I remember hearing a story once, that they were discontinued after factory workers who had the job of painting the numbers started developing leukemia...After a while, they pegged down the cause. The workers were unwittingly licking their tips of their brushes while painting.
Oops...