Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://www.iki.rssi.ru/mirrors/stern/earthmag/gauss.htm
Дата изменения: Tue Mar 28 19:28:16 2006 Дата индексирования: Tue Oct 2 16:35:45 2012 Кодировка: Поисковые слова: п п п п п п п п п п п п п п п п п п п п п п |
|
10. Gauss and the Global Magnetic Field |
![]() ![]() ![]() ![]() ![]() ![]() ![]() Earth's Core ![]() Tobacco Smoking ![]() & Moving Continents ![]() ![]() |
Public interest in science owes a great deal to Alexander Von Humboldt (1769--1859). As a young man Alexander explored the jungles of South America, but much of his life was spent in Paris, where he tirelessly drew the public's attention to the achievements of the natural sciences. Late in life he assembled his scientific knowledge into a monumental set of volumes titled " Kosmos."
Up to that time, the compass needle--and the downward-pointing "dip needle" on a horizontal axis--measured well the direction of the magnetic force, but what about measuring its strength? Gauss devised a clever method for doing so, using an auxiliary magnet; today this is a popular undergraduate lab excercise.
|