Leyden Sentence Examples
His transmitter consists of a nearly closed oscillating circuit comprising a condenser or battery of Leyden jars, a spark gap, and the primary coil of an oscillation transformer consisting of one turn of thick wire wound on a wooden frame.
The study of electricity he took up in 1746 when he first saw a Leyden jar, in the manipulation of which he became expert and which he improved by the use of granulated lead in the place of water for the interior armatures; he recognized that condensation is due to the dielectric and not to the metal coatings.
Specimens of Fowler's verses were published in 1803 by John Leyden in his Scottish Descriptive Poems. Fowler contributed a prefatory sonnet to James VI.'s Furies; and James, in return, commended, in verse, Fowler's Triumphs.
For this purpose a small Leyden jar is connected as usual.
This transfer will take place because the inner coatings of the Leyden jars have greater capacity with respect to the earth than the balls.Advertisement
Hence, however small may be the initial charges of the Leyden jars, by a principle of accumulation resembling that of compound interest, they can be increased as above shown to any degree.
If two Leyden jars L, L were hung upon the conductors which supported the combs, with their outer coatings put in connexion with one another by M, a series of strong spark discharges passed between the discharge balls.
In general design and construction, the manner of moving the rotating plate and in the use of the two Leyden jars in connexion with the discharge balls, Voss borrowed his ideas from Holtz.
These combs on opposite sides are connected respectively to the inner coatings of two Leyden jars whose outer coatings are in connexion with one another.
The positive stud on the back plate will act inductively on the front stud and charge it negatively, and similarly for the other stud, and as the rotation continues these charged studs will pass round and give up most of their charge through the combs to the Leyden jars.Advertisement
He studied at Geneva, Leyden and Paris, before becoming (1700) professor of philosophy and mathematics at the academy of Lausanne, of which he was four times rector before 1724, when the theological disputes connected with the Consensus led him to accept a chair of philosophy and mathematics at Groningen.
In St Peter's are the famous altar-piece by Rubens, representing the Crucifixion of St Peter, several works by Lucas van Leyden, and some old German glass-paintings.
The majority of the krypton lines which Baly identifies with auroral lines require for their production a Leyden jar and spark gap.
Several of his finest portrait-drawings in chalk or charcoal, including those of his brother artists Lucas Van Leyden and Bernard Van Orley, as well as one of two fine portrait paintings of men, belong to the period of this journey.
In the library of the university of Leyden, amongst the MSS.Advertisement
The earliest form of Leyden jar consisted of a glass vial or thin Florence flask, partly full of water, having a metallic nail inserted through the cork which touched the water.
Franklin in 1747 and 1748 made numerous investigations on the Leyden jar, and devised a method of charging jars in series as well as in parallel.
This arrangement is commonly called a battery of Leyden jars.
In its modern form the Leyden jar consists of a widemouthed bottle of thin English flint glass of uniform thickness p. 512.
In other cases, Leyden jars or condensers take the form of sheets of mica or micanite or ebonite partly coated with tin foil or silver leaf on both sides; or a pile of sheets of alternate tin foil and mica may be built up, the tin foil sheets having lugs projecting out first on one side and then on the other.Advertisement
All the lugs on one side are connected together, and so also are all the lugs on the other side, and the two sets of tin foils separated by sheets of mica constitute the two metallic surfaces of the Leyden jar condenser.
For the purposes of wireless telegraphy, when large condensers are required, the ordinary Leyden jar occupies too much space in comparison with its electrical capacity, and hence the best form of con denser consists of a number of sheets of crown glass, each partly coated on both sides with tin foil.
Fessenden in wireless telegraphy, and they form a very excellent arrangement for standard condensers with which to compare the capacity of other Leyden jars.
Owing to the variation in the value of the dielectric constant of glass with the temperature and with the frequency of the applied electromotive force, and also owing to electric glow discharge from the edges of the tin foil coatings, the capacity of an ordinary Leyden jar is not an absolutely fixed quantity, but its numerical value varies somewhat with the method by which it is measured, and with the other circumstances above mentioned.
The Van Eycks, followed by Memling, Metsys, Mabuse, Lucas van Leyden, struck out a new path in the revival of painting and taught Europe the secret of oil-colouring.Advertisement
The principles of telegraphy (land, submarine and wireless) and of telephony are discussed in the articles Telegraph and Telephone, and various electrical instruments are treated in separate articles such as Amperemeter; Electrometer; Galvanometer; Voltmeter; Wheatstone'S Bridge; Potentiometer; Meter, Electric; Electrophorus; Leyden Jar; &C.
Sir William Watson (1715-1787) in England first observed the flash of light when a Leyden jar is discharged, and he and Dr John Bevis (1695-1771) suggested coating the jar inside and outside with tinfoil.
In the case of the charged Leyden jar, he asserted that the inner coating of tinfoil had received more than its ordinary quantity of electricity, and was therefore electrified positively, or plus, while the outer coating of tinfoil having had its ordinary quantity of electricity diminished, was electrified negatively, or minus.
This theory of the Leyden phial Franklin supported very ingeniously by showing that the outside and the inside coating possessed electricities of opposite sign, and that, in charging it, exactly as much electricity is added on one side as is subtracted from the other.
A Leyden jar was charged at the key, and by the electric fire thus obtained spirits were inflamed, and many other experiments performed which had been formerly made by excited electrics.
The observation that certain animals could give shocks resembling the shock of a Leyden jar induced a closer examination of these powers.
Cavendish measured the capacity of disks and condensers of various forms, and proved that the capacity of a Leyden pane is proportional to the surface of the tinfoil and inversely as the thickness of the glass.
He added definiteness to the idea of the self-induction or inductance of an electric circuit, and gave a mathematical expression for the current flowing out of a Leyden jar during its discharge.
The positive and negative electrifications of the two coatings of the Leyden jar were therefore to be regarded as the result of a transformation of something called electricity from one coating to the other, by which process a certain measurable quantity became so much less on one side by the same amount by which it became more on the other.
Let this potential be denoted by V, and let v be the potential of the guard plate and the aluminium flap. This last potential is maintained constant by guard plate and flap being part of the interior coating of a charged Leyden jar.
By giving a charge to this Leyden jar the needle can thus be maintained at a certain constant high potential.
The formula indicates that the sensibility of the instrument should increase with the charge of the Leyden jar or needle, whereas Hopkinson found that as the potential of the needle was increased by working the replenisher of the jar, the deflection due to three volts difference between the quadrants first increased and then diminished.
Finally, these observers traced the variation to the fact that the wire supporting the aluminium needle as well as the wire which connects the needle with the sulphuric acid in the Leyden jar in the White pattern of Leyden jar is enclosed in a metallic guard tube to screen the wire from external action.
All the working parts of the instrument were supported on the base, so that on removing a glass shade which serves as a Leyden jar they can be got at and adjusted in position.
The spark may be obtained from the secondary of an induction coil, whose terminals are in connexion with the coatings of a Leyden jar.
After studying at Rostock and teaching there for a time and also at Copenhagen, he was a-ain sent abroad by his prior, visiting, among other places, the newly founded university of Leyden and making the acquaintance of the Dutch humanists.
Denholm, about midway between Hawick and Jedburgh, was the birthplace of John Leyden the poet.
The cottage in which Leyden was born is now the property of the Edinburgh Border Counties Association, and a monument to his memory has been erected in the centre of Denholm green.
There is no manual of Jainism as yet published, but there is a 1 The Hatthi Gumpha and three other inscriptions at Cuttack (Leyden, 1885); Sravana Belgola inscriptions (Bangalore, 1889); Vienna Oriental Journal, vols.
The autobiography of Baber (by Leyden and Erskine) gives interesting details about the country in the 16th century.
A third sphere contained a small charge of gunpowder which could be set off by a spark from an external Leyden jar.
Wheelwright William Oliver had a wheelwright William Oliver had a wheelwright 's business and Engineering shop in Leyden's Road, where the garage is now.
The famous Plymouth Rock, a granite boulder on which the Pilgrims are said to have landed from the shallop of the "Mayflower," lies on the harbour shore near the site of the first houses built on Leyden Street, and is now sheltered by a granite canopy.
By this time he had visited several of the principal museums on the Continent, among others Leyden (where Temminck resided) and Paris (where he had frequent intercourse with Cuvier), thus becoming acquainted with a considerable number of exotic forms that had hitherto been inaccessible to him.
Such a pair of concentric spheres constitute a condenser (see Leyden Jar), and it is obvious that by making R2 nearly equal to R 1, we may enormously increase the capacity of the inner sphere.
Trans., 1876, 166 [ii.], P. 489, where it is shown that tapping the glass of a Leyden jar permits the reappearance of the residual charge; " On the Residual Charge of 2 See Faraday, Experimental Researches, vol.
One large class of electrostatic voltmeters consists of a fixed metal plate or plates and a movable plate or plates, the two sets of plates forming a condenser (see Leyden Jar).
Benjamin Franklin and Bevis devised independently the form of condenser known as a Franklin or Leyden pane, which consists of a sheet of glass, partly coated on both sides with tin foil or silver leaf, a margin of glass all round being left to insulate the two tin foils from each other.
Leyden jars are now much employed for the production of the high frequency electric currents used in wireless telegraphy (see Telegraphy, Wireless).
Herman Boerhaave was born at Voorhout about 15 Km from Leyden in 1668; the son of a Dutch clergyman.
Wheelwright William Oliver had a wheelwright 's business and Engineering shop in Leyden 's Road, where the garage is now.
Mme. de Graaff, which first flowered at Leyden in 1883.
N. Glory of Leyden is a yellow counterpart of it.
But I have just been at Leyden and Amsterdam to ask after Galileo's cosmical system as I imagined I had heard of its being printed last year in Italy.
The availability of the energy of electrical separation in a charged Leyden jar is also limited only by the resistance of conductors, in virtue of which an amount of heat is necessarily produced, which is greater the less the time occupied in discharging the jar.
Braun suggested in 1898 that the oscillatory discharge of a Leyden jar should be sent through the primary coil of a transformer and the secondary coil should be interposed between the antenna and an earth connexion.'
In this case a closed condenser circuit is formed with a battery of Leyden jars, an inductance coil and a spark gap, and oscillations are excited in it by discharges created across the spark gap by an induction coil or transformer.
It had long been known that the discharges from a Leyden jar could magnetize or demagnetize steel needles.
The text of the Complaynt was first edited by Leyden in 1801.
The Leyden Syriac is supplemented with literal extracts from the latter, and the whole is presented as his work.
Archiv fiir Zoologie, ii.; Id., " The Genera of European Nemerteans critically revised," Notes from the Leyden Museum (1879); Id., " Zur Anatomie u.
The instrument known as a Leyden jar consists of a glass bottle coated within and without for three parts of the way up with tinfoil.