The World's Columbian Exposition 1893. Chicago, U.S.A. 1893
Official Catalogue With Illustrations issued by the Royal Danish Commission

År: 1893

Sider: 163

UDK: 061.4(100) Chicago

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146 DENMARK determining Ole Romer. French expedition arrived at Copenhagen for the purpose of e of Uranienborg. He assisted its members, and .when they returned to France, he accompanied them. Here raising himself he worked at the construction of the large fountains of Versailles, and made his great discovery in 1675. He returned to Denmark 1681 to become a profes- sor of astronomy at the University of Copenhagen. But at the same time he was active in a number of practical situations which, among other things, made him introduce uniformity of weights and measures everywhere in Denmark, and .work out the first register of land or general rental, making possible a uniform assessment of all landed property in Denmark. Tyge Brahe and Niels Stensen belonged to the circle of the learned exclusively. There was a cleft between these men and the common people. Although not giving it access to his science Rømer was in communication with the people in practical life; but not till H. C. Ørsted was the intercourse brought about to its full extent. Hans Christian Ørsted (1777—1851) who, after the dis- covery by Volta of the Voltaic pile, engaged with eagerness in the study of piles, was led into an extensive study of natural philosophy, and in 1820 he discovered the influence of electric currents on the magnetic needle. This' discovery has been of a far-reaching importance on account of its appli- cation to the electric telegraph, and it has rendered the name of Ørsted world-famed. But to his country this ingenious