Word: acids
(lookup in dictionary)
(lookup stats)
Dates: during 1940-1949
Sort By: most recent first
(reverse)
Instead of using cosmic rays or esoteric mathematics for his demonstrations, Professor Ehrenhaft impressed the gathered physicists with little experiments a man can do on his desk with a glass of water, a magnet or two, a compass, some acid and some electric wires...
...acidified water a piece of soft iron sends up bubbles of hydrogen (the metal reacts with the dilute acid and hydrogen is given off). But when the submerged bar was magnetized, Professor Ehrenhaft found oxygen as well as hydrogen bubbles. The only place the oxygen could come from was the water. It seemed that the water decomposed under the influence of the magnet just as water does when an electric current runs through an electrolytic solution. Professor Ehrenhaft argued from this that as no electric current was involved in the experiment, a magnetic current must have done the trick...
...north pole, he thought, at the same time attracted other magnetic ions having a south charge and the south pole attracted ions with a north charge. The Professor thought that this conclusion was bolstered by a strange finding: when he left a permanent magnet overnight in the weak acid, it lost about 10% of its power (permanent magnets normally lose strength very slowly...
Captain Kern and his helpers, who have handled 360 burn cases aboard a hospital ship, do not believe in tannic acid for burns-it forms a loose, crusty scab under which infection often develops. All they used on the young fireman was sulfathiazole ointment and rather tight bandages. The tightness slowed the oozing of blood serum into injured tissues, thus reducing shock. A month after he was burned, the sailor's wounds were healthy and pinch grafts were laid on his deepest burns. The patient, almost unscarred, is now back on duty...
...retired U.S. Chief of Staff talked to reporters on his 79th birthday. General Peyton C. March's pointed goat-beard had gone grey; but his eyes were sharp and blue as ever, his tongue still as acid as in 1918, when even the dread "March smile" was enough to burn holes in his subordinates. During World War I, General March was the superior officer and most watchful critic of the A.E.F.'s General John J. Pershing...