When employing a Volta condensing electroscope, the following is the method of procedure: - The top of the electroscope consists of a flat, smooth plate of lacquered brass on which another plate of brass rests, separated from it by three minute fragments of glass or shellac, or a film of shellac varnish.
The potential difference, due to the Volta effect in air, has been shown by Thomson (Lord Kelvin) and his pupils to be of the same order of magnitude, if not absolutely the same, as that produced in a dilute electrolyte in which two metallically connected plates (e.g.
So much appears in the Volta Bureau Souvenir.
Krause (north from the Gold Coast, 1886-1887) and the French Captain Binger (Senegal to Ivory Coast, 1887-1889) first defined its southern limits by revealing the unexpected northward extension of the basins of the Guinea coast streams, especially the Volta and Komoe, a fact which explained the absence of important tributaries within the Niger bend.
She is being educated by Miss Dora Donald who, at the beginning of her work with her pupil, was supplied by Mr. Hitz, Superintendent of the Volta Bureau, with copies of all documents relating to Miss Sullivan's work with Miss Keller.
Those interested may get on application to the Volta Bureau, Washington, D. C., the reports of the teachers who prepared her for college, Mr. Arthur Gilman of the Cambridge School for Young Ladies, and Mr. Merton S. Keith.
By the river Volta (which separates it from the German colony of Togoland); the southern frontier is conterminous with the northern frontier of the (British) Gold Coast colony.
Alessandro Volta of Pavia discovered the electric battery in the year 1800, and thus placed the means of maintaining a steady electric current in the hands of investigators, who, before that date, had been restricted to the study of the isolated electric charges given by frictional electric machines.
Finding that other people seemed to know so much more about Helen Keller than she did, Miss Sullivan kept silent and has been silent for ten years, except for her paper in the first volta Bureau Souvenir of Helen Keller and the paper which, at Dr. Bell's request, she prepared in 1894 for the meeting at Chautauqua of the American Association to Promote the Teaching of Speech to the Deaf.
For the next century the rate of progress was slow, though the ideas of Volta in Italy and the instrumental devices of Sir.