Word: cadmium
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...building was all wood, with the nails sunk and sealed in. Anything that might contain lead or cadmium was excluded; the principal exception to the no-metal rule was stainless steel for the cages that contained experimental rats and mice. Water pipes, where possible, were made of plastic. The pure mountain air was electrostatically filtered. Visitors were barred because they might carry metalliferous dust; even research-staff members had to take their shoes off before entering the animal rooms. The animals were fed a diet with a meticulously defined metallic content, and their pure drinking water was superpurified. Whether...
...blood clot, but with a clot the problem is how to make it and how to keep it from traveling and causing still more brain damage. Dr. Mullan and fellow workers noted that not only does electricity promote clotting, but also, unaccountably, so does a piece of copper, cadmium or beryllium, even without an electric current to help the process...
Clippers & Trimmers. Like all storage batteries, nickel-cadmiums work by taking on a charge of electricity from an ^utside source and converting it into chemical energy for storage. When called upon, they gradually convert the chemical energy back into a steady current of electricity, which lasts long enough to run the portable typewriter up to ten hours before recharging is needed. Auto batteries use lead and acid as the elements to produce their chemical action; nickel-cadmiums use nickel and cadmium electrodes. European engineers after the war developed a way to make them compact in size and to seal them...
...runaway success of transistor radios showed the U.S. consumer's fascination with what is simple and portable, and attracted U.S. industry to the virtues of the nickel-cadmiums. Skil Corp. and Black & Decker sell cordless electric hand drills, hedge trimmers, grass clippers and other tools that are powered by a small nickel-cadmium power pack built into the tool or strapped to the user's belt. Remington, Schick and Norelco have battery-run shavers. Sunbeam has a cordless shaver and kitchen mixer, General Electric a toothbrush, Fairchild a home movie camera. Nickel-cadmiums also power a growing variety...
Demand seems certain to grow: eager research labs are rushing the development of battery-powered vacuum cleaners, refrigerators, vending machines, and even battery-heated clothing. And where nickel-cadmiums are not powerful enough to do the job, there is already a newer silver-cadmium rechargeable battery, which is even more expensive but packs a compact electrical wallop strong enough to drive portable industrial machinery...