By W. T. Sullivan
Radio astronomy has revolutionized the process glossy astronomy. Marking the 50th anniversary of Jansky's discovery in 1933 of extraterrestrial radio emission, Professor Sullivan requested a number of the pioneers within the box to set down their types of occasions and the folk who made them. all the ranking of members seeks to offer a great 'feeling' for the days to the nice majority of readers who don't have skilled them. Over a hundred and fifty illustrations, more often than not historic pictures of guys and machines, liven up many of the memories and reflections. The record of members contains the various key personalities and covers the entire significant laboratories and nations curious about radio astronomy earlier than 1960. as well as the radio astronomers themselves, there are contributions from optical astronomers and theorists heavily relating to the sphere, in addition to historians of 20th century astronomy.
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Extra resources for The Early Years of Radio Astronomy: Reflections Fifty Years after Jansky's Discovery
Sample text
V. " 1935), but it came to nought. The only observations of any depth (before the Reber era 2 1 ) were carried out in 1936 by Gennady W. Potapenko (1895-1979) and Donald F. Folland, a professor Institute of Technology. of physics and his student at the California Potapenko was a colorful Russian emigre who worked on a variety of problems in physics, their only common denominator being that they involved radio technology, the shorter the wavelength the better. He read Jansky's articles, decided he should try to confirm these results for himself, and got Rudolph M.
It is interesting to see how the mystifying peculiarities of short-wave communications of 1930 gradually have been resolved into an orderly whole. The solar activity minimum of the early thirties must have brought with it abnormally low critical frequencies. Many a winter night was spent fishing for DX at 7 Mc/s when nothing could be heard between midnight and dawn. It is now clear that the MUF [maximum usable frequency] over all of North America was well below 7 Mc/s for several hours. An hour after sunset when the west coast stations disappeared 14 Mc/s went dead.
Techniques Besides of from engineering societies, and even a Danish his technical management which expertise, contributed productivity of the Holmdel group. he in was large known for his measure to the He had an aggressive personality and ran a tight ship; John R. " On the other hand Jansky, although fiercely competitive in sports and games, did not have a forceful character when it came to dealing with conflicts in professional matters. was inculcated by his This attitude probably father, from whom he often sought and received advice: I do not know antagonize him.