United States or Malawi ? Vote for the TOP Country of the Week !
The dust-laden atmosphere of Melbourne is said to impede very seriously the usefulness of this originally fine instrument. It may be doubted whether so large a spectrum will ever again be constructed. A new material for the mirrors of reflecting telescopes, proposed by Steinheil in 1856, and independently by Foucault in 1857, has in a great measure superseded the use of a metallic alloy.
Among them I can pause to mention only those of Volta, the Italian, to whose discoveries the battery is due; Oersted, the Dane, who first discovered the magnetic properties of the electric current; Ampere and Arago, the Frenchmen, who prosecuted still further and most successfully similar researches; then Sturgeon, the Englishman, who may be said to have made the first electro-magnet; next, and not least illustrious among these illustrious men, our countryman Henry, who first showed the practicability of producing electro-magnetic effects by means of the galvanic current at distances infinitely great; and finally Steinheil, the German, who, after the invention of the Telegraph in all its material parts was complete, taught, in 1837, the use of the ground as part of the circuit.
Now and then I venture to bring up the weather or the higher cost of living. Once I asked him what he thought about the need of football reform. Once I tried to drag in Mme. Steinheil. But Robert listens patiently, and when I have concluded he calls my attention to the fact that in 1908 the number of deaths in France exceeded the number of births by 12,000.
DES TROUBLES PSYCHIQUES ET NEVROSIQUES POST-TRAUMATIQUES, Par R. Benon. G. Steinheil, editeur, Paris, 1913; pp. x-449. The author in this volume has written a clinical and medico-legal treatise on traumatic nervous affections from a broad and philosophical standpoint.
As to the discovery that electricity may be made to cross the water without wire conductors, above, through, or beneath the water, the very reference by the editor to another number of the magazine, and to the experiments of Cooke, or rather Steinheil, and of Bain, shows that the editor is wholly ignorant of the nature of my experiment. I have in detail the experiments of Bain and Wheatstone.
Both Fabricius and Janssen should be viewed under a low morning sun. STEINHEIL. A double ring-plain, W. of Janssen, 27 miles in diameter. The more easterly formation sinks to a depth of nearly 12,000 feet below the summit of the border.
It may, perhaps, be worth while to consider it in the light of recent history and present-day issues. Alexander I., the first Russian sovereign of Finland, addressed a Rescript to Count Steinheil on his appointment to the post of Governor-General.
About the same time with yourself Professor Wheatstone, of London, and Dr. Steinheil, of Germany, proposed plans of the electro-magnetic telegraph, but these differ as much from yours as the nature of the common principle would well permit; and, unless some essential improvements have lately been made in these European plans, I should 'prefer the one invented by yourself.
Wheatstone and Steinheil have money for their projects; the former by a company, and the latter by the King of Bavaria. Is there any national feeling with us on the subject? I will not say there is not until after the next session of Congress.
The early experimenters, as we have seen, especially Salva, had utilised the ground as the return part of the circuit; and Salva had proposed to use it on his telegraph, but Steinheil was the first to demonstrate its practical value.
Word Of The Day