Word: regionalization
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Dates: during 1930-1939
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...expedition during the spring and summer of the current year, Lake revealed that he will travel to the region of Lake Van, in the eastern part of Turkish Armenia. With him will go his wife, Professor Casey of Brown University, who is a former pupil of his, and two University of Pennsylvania professors...
...help for the theory came from the researches of Caltech's H. Victor Neher at San Antonio, Tex., and Madras, India. Cosmic ray particles are pulled toward the earth's poles by its magnetic field. Particles of high energy resist this pull, and so predominate in the region of the Equator. The latitude difference between Madras (13° N.) and San Antonio (29° N.) furnished valuable data on electrons in the energy band between seven billion and 17 billion volts. These high energy electrons were found to conform to the Bethe-Heitler theory, rapidly losing their power...
Fast moving electrons make an impression on a photographic plate as X-rays do, but Davisson's electrons were too slow to obtain such a picture. So he "felt" the pattern of his reflected beam by moving an electron collector around in the recoil region. Connected to an ammeter, the collector translated the strength of the electron beam at a number of points into measured electric current. The pattern having been thus patiently and ingeniously mapped out, it was seen to consist of true diffraction rings. Concluded the researchers: "Our experiments establish the wave nature of moving electrons with...
...region in southwestern Borneo about the size of England & Wales, given to Princess Baba's great-great-uncle Sir James Brooke for supressing a native revolt...
...hardier of the early Dutch settlers, disgruntled at the cession (1814) of the Cape Colony to the British and smarting under the alien rule, moved out with their families, their herds and their household possessions, betook themselves northward across the Orange and Vaal Rivers into the then unknown region of the Transvaal. It was a perilous undertaking, for besides the barrier range of mountains, the rivers across the way, the high plateau of the Transvaal itself was lion-infested, overrun by the warlike Zulu and Kaffir tribes. Moving in great wagon trains for safety's sake and driving their...