Word: potassium
(lookup in dictionary)
(lookup stats)
Dates: during 1960-1969
Sort By: most recent first
(reverse)
...Somewhere along in here I began to get excited about magnets, and I remember discovering electric bells and batteries. With my allowance I bought a pound of wire, a battery and a bell--I guess I was fourteen. I made batteries with potassium dichromate dissolved in sulfuric acid. I had a little workshop in the storeroom. Once, to show the batteries, I carried them out on a tray and tripped; I spilled sulfuric acid all over the living room floor...
...veins. But to understand any one of these mechanisms, young Dr. Moore realized, demanded understanding of broader and more fundamental subjects. What is the body's normal content of such common components as water, sodium and potassium? What changes occur after injury or surgery? Astonishingly, no one knew how to measure the amount of water in the human body...
...aldosterone research was no tropic-bound G.I., but a 34-year-old Michigan woman whose high blood pressure (170 over 100) was accompanied by unusual features. She had muscular weakness and cramps, had to drink and urinate frequently; her low-salt sweat and abysmally low level of potassium in the blood indicated an excess of aldosterone. A medical team traced her trouble to a small tumor on her right adrenal gland, which was pumping out a flood of aldosterone although there was no excess of other adrenal hormones. Surgeons removed her tumor, and now, eight years later, the woman...
...liquid lithium flows through the hot reactor core and emerges at 2,000° F. The tubes that carry it, made of zirconium-columbium alloy, run at near white heat. The lithium is piped through a heat exchanger and turns liquid potassium (boiling point, 1,400° F.) to high-pressure gas that runs a turbine producing 300 kw. to 1,000 kw. of electricity. The potassium gas goes to a wide, flat condenser to be turned back into a liquid (see diagram...
...heat from the condenser. There is no air to cool it by convection; the only cooling comes from radiation, which increases sharply with temperature. If the working fluid were steam, an enormous condenser would be needed to radiate its low-grade heat. The lithium-potassium combination runs so hot that a fairly small condenser does...