United States or Namibia ? Vote for the TOP Country of the Week !
Oersted, in 1820, discovered the action of a voltaic current on a magnetic needle; and immediately afterwards the splendid intellect of Ampere succeeded in showing that every magnetic phenomenon then known might be reduced to the mutual action of electric currents. The subject occupied all men's thoughts: and in this country Dr.
This new method of producing continuous electrical effects had far-reaching results, one of which was the discovery of the magnetic properties of the electric current by the Dane, Oersted once again a purely accidental discovery, moving directly counter to the assumptions of the discoverer himself.
Two years later it was greatly simplified by Schweigger, of Halle; and there is reason to believe that but for the discovery of electro-magnetism by Oersted, in 1824 the chemical telegraph would have come into practical use. In 1806, Ralph Wedgwood submitted a telegraph based on frictional electricity to the Admiralty, but was told that the semaphore was sufficient for the country.
Oersted first proved that the other part of its life is spent on the leaves of certain Rosaceæ, and his discovery has been repeatedly confirmed. I have myself observed the following confirmation of this. Many other well established cases of similar heteroecism could be quoted. But we must return to the Peridermium Pini.
One day devoted to seeing Germany, and one for the North, the country of Oersted and Linnæus, and for Norway, the land of the old heroes and the young Normans. Iceland is visited on the journey home: the geysers burn no more, Hecla is an extinct volcano, but the rocky island is still fixed in the midst of the foaming sea, a continual monument of legend and poetry.
At that time I also introduced myself to our celebrated physician Oersted, and his house has remained to me to this day an affectionate home, to which my heart has firmly attached itself, and where I find my oldest and most unchangeable friends.
And here also it is remarkable, that the men who recommended me have each one made prominent some very different qualification which gave me a claim: for instance, Oehlenschl ger, my lyrical power, and the earnestness that was in me; Ingemann, my skill in depicting popular life; Heiberg declared that, since the days of Wessel, no Danish poet had possessed so much humor as myself; Oersted remarked, every one, they who were against me as well as those who were for me, agreed on one subject, and this was that I was a true poet.
The new line of investigation thus opened by the French naturalists was followed up by the Norwegian, Sars, in 1835, by Edward Forbes, in our own country, in 1840, and by Oersted, in Denmark, a few years later.
But this Oersted very often did prove in an irrefutable manner. In my lack of receptivity for legal details, and my want of interest in Positive Law, I flung myself with all the greater fervour into the study of what in olden times was called Natural Law, and plunged again and again into the study of Legal Philosophy.
As Franklin had exhibited the relation between lightning and the electric fluid, so Oersted exhibited the relation between magnetism and electricity. From 1820 to 1825, his discovery was further developed by Davy and Sturgeon of England, and Arago and Ampere of France.
Word Of The Day