Get Carl Størmer: Auroral Pioneer PDF

By Alv Egeland, William J. Burke

ISBN-10: 3642314562

ISBN-13: 9783642314568

ISBN-10: 3642314570

ISBN-13: 9783642314575

This biography summarizes the seminal contributions to auroral and area technology of Carl Størmer (1874 - 1957). He used to be the 1st to advance particular photographic the way to calculate heights and morphologies of various auroral kinds in the course of 4 sunlight cycles. Størmer independently devised numerical ideas to figure out the trajectories of high-energy charged debris allowed and forbidden within the Earth’s magnetic box. His theoretical analyses defined cosmic ray entry to the higher surroundings, two decades sooner than they have been pointed out via different scientists. Størmer’s crowning success, “The Polar Aurora,” released while he used to be eighty one years previous, stands to at the present time as a frequently brought up consultant in graduate-level classes on house physics.

The authors current the lifetime of this prodigious scientist when it comes to the cultural lifetime of early twentieth century in Norway and to the improvement of the distance sciences within the post-Sputnik era.

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Extra info for Carl Størmer: Auroral Pioneer

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31) that would be rediscovered in 1964 by S. -I. Akasofu. Størmer also noted that during disturbed periods auroral displays appear very similar on successive nights. Spending 4–8 h in the field making auroral observations during cold, clear nights was no easy task. They accumulated 700 plates, most with exposure durations between of 1 and 7 s. Of these Størmer judged 348 successful. A few of the auroral pictures had exposure times a half second or less. The new auroral photographs were analysed and described at a lecture to the Norwegian Academy on April 21, 1911.

I just finished a new paper which I feel should be published as soon as possible. ” Meetings always start with the president asking for “une communication a` facre” or whether anyone has a work he wishes to present. One never announces a presentation before hand. I informed him at once that I had a contribution. When called, I went to the board and started my presentation. I was told beforehand that I should not write long and complicated mathematical equations, but try to use simple forms. The audience is not supposed to applaud or clap hands.

When we returned to the hotel, normally after two in the morning they served us a hot meal with tea or beer. Typically, we had excellent reindeer beef steak. I rented two rooms in the hotel. One I made completely dark and used it only as a photographic laboratory. Here I developed the film plates that were accurately marked by the day, time and with a short description of the auroral display characteristics. They were then stored in a special wooden box that I have with me. Work in the dark room took several hours every day.

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Carl Størmer: Auroral Pioneer by Alv Egeland, William J. Burke

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Categories: Climatology