At the beginning of the 20th century Kristian Birkeland (1867-1917), a Norwegian scientist of insatiable curiosity, addressed questions that had vexed European scientists for centuries. Why do the northern lights appear overhead when the Earth’s magnetic field is disturbed? How are magnetic storms connected to disturbances on the Sun? To answer these questions Birkeland interpreted his advance laboratory simulations and daring campaigns in the Arctic wilderness in the light of Maxwell’s newly discovered laws of electricity and magnetism. Birkeland’s ideas were dismissed for decades, only to be vindicated when satellites could fly above the Earth’s atmosphere.
Faced with the depleting stocks of Chilean saltpeter and the consequent prospect of mass starvation, Birkeland showed his practical side, inventing the first industrial scale method to extract nitrogen-based fertilizers from the air. Norsk Hydro, one of modern Norway’s largest industries, stands as a living tribute to his genius.
Hoping to demonstrate what we now call the solar wind, Birkeland moved to Egypt in 1913. Isolated from his friends by the Great War, Birkeland yearned to celebrate his 50th birthday in Norway. The only safe passage home, via the Far East, brought him to Tokyo where in the late spring of 1917 he passed away.
Clerk (or) Clark, Esqre.," held the appointment ; he was son to Sir Wm. Clarke, :1 sort of Secretary-at-War, and does not appear to have been bred up to the law. In Ireland the post was held from 1635 to 1637 by W. Clerke, J.C.B., E.
... and, judging by the strange new media venues, "Saturday Night Live," "Donahue," and gossip columnist Lany King's radio and television call-in shows on which 1992's Losing 245.
His stature within the party leadership would suffer a significant blow at the Cleveland convention . Although both Lodge and Coolidge came from Massachusetts , they represented very different elements in their state's Republican party ...
(英)玛丽奥特, 李菲. 疆域达到了最大,罗德岛、塞浦路斯和安纳托利亚西南岸上都是他们的地盘。迈锡尼人还将克里特文字变成了一种希腊文,翻译过来的文字显示,迈锡尼人也信仰一些古典希腊的神灵,如海神波塞冬、太阳神阿波罗和主神宙斯。
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Anna J. Cooper , A Voice from the South , 1892 Anna Julia Cooper , A Voice from the South ( Xenia , Ohio : The Aldine Printing House , 1892 ) : 134-135 , 138–140 , 142–145 . The book may be accessed from the Internet ...
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... inhabitants are greatly Exposd . to the Saviges by whome our wives and Childring are daly Cruily murdered Notwithstanding our most Humble Petitions Canot Obtain Redress- By an other act we are Taxd . which in our 398 APPENDICES .
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Supreme Court Justices ( continued ) Name * Years on Court Appointing President John Marshall Harlan William J. Brennan , Jr. Charles E. Whittaker Potter Stewart Byron R. White Arthur J. Goldberg Abe Fortas Thurgood Marshall WARREN E.