Word: fermi
(lookup in dictionary)
(lookup stats)
Dates: during 1934-1934
Sort By: most recent first
(reverse)
...continued emission of positrons from boron, magnesium and aluminum by bombarding those elements with alpha particles (TIME, Feb. 12). Since then their results have been reproduced and extended in dozens of laboratories in a half-dozen countries, notably England, Italy, the U. S. Italy's Professor Enrico Fermi and his aids have coaxed radiations of beta particles (fast electrons) from phosphorus, iron, silicon, aluminum, chlorine, vanadium, copper, arsenic, silver, tellurium, iodine, chromium, barium, fluorine, sodium, magnesium, titanium, zirconium, zinc, strontium, antimony, selenium, bromine...
Most assiduous imitator of the Curie-Joliots is Professor Enrico Fermi, 32, Italian physicist. Using neutrons instead of alpha particles or deutons, he has produced radioactive forms of two dozen elements from fluorine to barium...
...elements Professor Fermi played with last spring was uranium. Uranium, discovered in 1789, is the mother stuff of radium, and the heaviest element on earth (twice as heavy as tin). Astronomers believe that elements heavier than uranium must exist in the interior of the sun. Geologists admit that perhaps near the core of the earth may be something heavier than uranium. But there certainly has been none anywhere near the earth's surface where man can lay his hands on it-until possibly last week...
...King of Italy and a group of Fascist physicists, one of Professor Fermi's admiring colleagues reported that, after wiping away a flood of electrons, he had smashed a batch of neutrons upon a piece of uranium which weighed 92 atomic units. For 13½ min., while it sputtered electrons, the uranium weighed 93 units. According to the Mendeleyeff Table it had no scientific business weighing more than uranium. During that period, reasoned Professor Fermi, the substance must have been not uranium, but hypothetical Element...