For the next century the rate of progress was slow, though the ideas of Volta in Italy and the instrumental devices of Sir.
The western boundary was settled by Anglo-German agreements of 1890 and 1899; it leaves the coast west of the town of Lome and proceeds in a zigzag line to where the Deine river joins the Volta; thence follows the Volta to its junction with the Daka and then the Daka up to the point where 9° N.
The chief river traversing it is the Oti, which rises in about 12° N., enters Togoland at its northeast corner, and runs with a very sinuous course south-south-west to its junction with the Volta in 7° 37' N.
For a considerable distance the left bank of the Volta itself is in German territory, but its lower course is wholly in the Gold Coast colony.
On the Volta, a short distance above the Oti confluence, are the adjacent towns of Kete-Krachi; on an affluent of the Mono in 7° N.
Next came the discovery of Galvani and of Volta, and as a consequence a fresh set of proposals, in which voltaic electricity was to be used.
The European ferment of ideas which preceded the French Revolution expressed itself in men like Alfieri, the fierce denouncer of tyrants, Beccaria, the philosopher of criminal jurisprudence, Volta, the physicist, and numerous political economists of Tuscany.
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.
Wall was discovered and may be seen in the garden of the Liceo Volta, 88 ft.
Volta) is defined to be difference of potential which acting between the terminals of a resistance of one ohm sends through it a continuous current of one ampere.
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.
In their course through Ashanti, the rivers, apart from the Volta, are navigable by canoes only.
An Ashanti force invaded Krepi, a territory beyond the Volta, and in June 1869 captured Mr Fritz A.
Volta made here his first electrical experiments.
Volta added the condenser (Phil.
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.
Volta made use of such an electroscope in his celebrated experiments (1790-1800) to prove that metals placed in contact with one another are brought to different potentials, in other words to prove the existence of so-called contact electricity.
The first extends from the date of publication of Gilbert's great treatise in 1600 to the invention by Volta of the voltaic pile and the first production of the electric current in 1799.
- We now enter upon the second period of electrical research inaugurated by the epoch-making discovery of Alessandro Volta (1745-1827).
Volta followed up these observations with rare philosophic insight and experimental skill.
Volta showed, however, that if a series of bodies of the first class, such as disks of various metals, are placed in contact, the potential difference between the first and the last is just the same as if they are immediately in contact.
Volta also gave his pile another form, the couronne des tasses (crown of cups), in which connected strips of copper and zinc were used to bridge between cups of water or dilute acid.
Volta then proved that all metals could be arranged in an electromotive 1 Modern researches have shown that the loss of charge is in fact dependent upon the ionization of the air, and that, provided the atmospheric moisture is prevented from condensing on the insulating supports, water vapour in the air does not per se bestow on it conductance for electricity.
Volta maintained that the mere contact of metals was sufficient to produce the electrical difference of the end plates of the pile.
This discovery of Oersted, like that of Volta, stimulated philosophical investigation in a high degree.
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.
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.
Miss Keller has given her account of it, and the whole matter was discussed in the first Volta Bureau Souvenir from which I quote at length:
So much appears in the Volta Bureau Souvenir.