| 单词 | voltaic |
| 例句 | It is Toltec dream time, not “voltaic” dream time. Soho House, but Make It Enlightened 2017-11-21T05:00:00Z When the blind man sits up, suddenly, his hair-trigger instincts having flared to life, it’s the first of many voltaic scares. The Twisted Appeal of “Don’t Breathe” 2016-09-13T04:00:00Z A battery is a multiple connection of voltaic cells, as shown in Figure 21.18. College Physics for AP Courses 2015-08-12T00:00:00Z This approach is called agrivoltaics — a portmanteau of agriculture and voltaic cells, which transform solar power to electrical power. Can Dual-Use Solar Panels Provide Power and Share Space With Crops? 2022-06-28T04:00:00Z “I have just completed a curious voltaic pile which I think you would like to see,” he wrote. How a Victorian Lawyer from Wales Invented the Hydrogen Fuel Cell 2017-10-29T04:00:00Z As a voltaic cell, then, Trump is a largely untapped resource. If Donald Trump Were Actually a Battery 2017-05-18T04:00:00Z Saft recently won a contract to supply an energy-storage system to stabilize the Kauai Island electrical grid in Hawaii, where the utility is deploying a new 12-megawatt photovoltaic array as a generating unit. Measuring the success of a White House-backed green-energy bet 2016-02-26T05:00:00Z The Solar Energy Industries Association, which co-authored the market study, estimates solar voltaic installations will grow 36 percent more than in 2013. Oklahoma trails nation in growth of solar power 2015-02-09T05:00:00Z Thin platinum wire was rendered incandescent by a voltaic current; a small incandescent electric lamp would now be found more satisfactory. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z From this result Thomson proceeded to calculate the electromotive forces required to effect chemical changes of different kinds, and those of various types of voltaic cell. Lord Kelvin An account of his scientific life and work 2012-04-06T02:00:32.097Z The voltaic arc also produces the most intense light that we know of. The Catholic World; Volume I, Issues 1-6 A Monthly Eclectic Magazine 2012-04-05T02:00:40.207Z The most certain evidence, when bodies are long kept, is most decidedly the commencement of decomposition; but, in other cases, the action of the voltaic pile on a bared muscle is an infallible test. Curiosities of Medical Experience 2012-03-09T03:00:20.410Z Then, with a very large voltaic battery, a tremendous quantity of electricity could be poured into the atmosphere, and its electrical condition could be certainly disturbed. Meteorology or Weather Explained 2012-02-20T03:00:18.847Z He went on to show that the total heat produced in any voltaic circuit was proportional to the electromotive force E of the battery and to the number of equivalents electrolysed in it. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z Electrical studies, however, engaged most of his attention, especially in connexion with the theory of the voltaic cell and the electric discharge in rarefied gases. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 10 "David, St" to "Demidov" 2012-02-17T03:00:33.923Z Faraday's next series of researches was devoted to the experimental proof of the identity of frictional and voltaic electricity. Heroes of Science: Physicists 2012-01-17T03:00:17Z The late experiments of Mr. Crosse seemed to show that insects were produced in silicate of potash under a long-continued action of voltaic electricity. Curiosities of Medical Experience 2012-03-09T03:00:20.410Z He identifies the nervous fluid with galvanism and voltaic electricity, and asserts that by a galvanic battery all the results can be obtained which mesmerism claims as its own. Modern Magic 2012-01-01T03:00:09.557Z In this paper he showed that the heat produced by currents generated by magneto-electric induction followed the same law as voltaic currents. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z His researches dealt very largely with electro-chemistry and with the voltaic cell, of which he invented several varieties. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6 "Groups, Theory of" to "Gwyniad" 2011-12-16T03:00:12.320Z The prevalent views regarding acids and bases were greatly strengthened by the earlier researches of Sir Humphry Davy, in which he employed the voltaic battery as an instrument in chemical investigation. Heroes of Science Chemists 2011-12-09T03:00:21.047Z The voltaic cell, on the other hand, furnishes a large quantity of electricity at low pressure, as a street may be flooded by a broken water-main though the pressure is low. The Story of Great Inventions 2011-10-05T02:00:16.353Z Such are Pulvermacher's chains, the voltaic piles made with elements of metallic gauze, Cruickshank's battery, and many others that have been used. Neuralgia and the Diseases that Resemble it 2011-10-03T02:00:31.460Z The electrical word voltaic is in honor of Volta. Great Inventions and Discoveries 2011-10-01T02:00:30.900Z About 1839 he constructed the platinum-zinc voltaic cell that bears his name, and with the aid of a number of these exhibited the electric arc light in the London Institution, Finsbury Circus. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6 "Groups, Theory of" to "Gwyniad" 2011-12-16T03:00:12.320Z The voltaic battery had been discovered, and had opened up a region of possibilities in chemistry. Heroes of Science Chemists 2011-12-09T03:00:21.047Z The voltaic cell is the simplest form of electric battery. The Story of Great Inventions 2011-10-05T02:00:16.353Z A great variety of useful voltaic batteries have since been devised by others, too numerous to be mentioned here. Inventions in the Century 2011-07-20T02:00:14.643Z The writer of that article sees no difference between the mere aggregation of inorganic particles brought together by voltaic action and the building up of vital structures under the influence of organic forces. The Seven Follies of Science [2nd ed.] A popular account of the most famous scientific impossibilities and the attempts which have been made to solve them. 2011-06-30T02:00:34.290Z In the same year he received a Royal medal from the Royal Society for his Bakerian lecture on “Certain phenomena of voltaic ignition and the decomposition of water into its constituent gases.” Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6 "Groups, Theory of" to "Gwyniad" 2011-12-16T03:00:12.320Z Before leaving Bristol he had commenced experiments on the chemical applications of the voltaic battery; these he at once followed up with the better apparatus now at his command. Heroes of Science Chemists 2011-12-09T03:00:21.047Z The answer to this question had been so uncertain that the effect of the voltaic battery had been termed "galvanism," while that of the friction machine retained the name "electricity." The Story of Great Inventions 2011-10-05T02:00:16.353Z We have seen that Davy produced a brilliant electric light with two pieces of charcoal in the electric circuit of a voltaic battery. Inventions in the Century 2011-07-20T02:00:14.643Z The so-called gilding is really Dutch metal or copper, and the silver is tin or zinc, so that the two actually form a voltaic couple. The Seven Follies of Science [2nd ed.] A popular account of the most famous scientific impossibilities and the attempts which have been made to solve them. 2011-06-30T02:00:34.290Z Just after the invention of the voltaic pile in 1800 it came to be used in medicine with wonderful results. Psychotherapy 2011-06-19T02:00:20.053Z My borate of glass good, and common electricity better than voltaic.” Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 2 "Fairbanks, Erastus" to "Fens" 2011-06-19T02:00:16.580Z Electric Batteries From the time of Volta to the time of Faraday the only means of producing an electric current was the "voltaic battery," so called in honor of Volta. The Story of Great Inventions 2011-10-05T02:00:16.353Z But when, as we have seen, voltaic electricity entered the field, electricity became a more powerful and tractable servant, and distant intelligent signals became one of its first labors. Inventions in the Century 2011-07-20T02:00:14.643Z The amount of energy required is exceedingly small, but since the columns are really nothing but a voltaic pile, it is very evident that after a time they would become exhausted. The Seven Follies of Science [2nd ed.] A popular account of the most famous scientific impossibilities and the attempts which have been made to solve them. 2011-06-30T02:00:34.290Z The placing of two or three pieces of metal one above another with a moist substance between them will create a voltaic battery. The Universe a Vast Electric Organism 2011-06-09T02:00:22.450Z The first experiment which he has recorded was the construction of a voltaic pile with seven halfpence, seven disks of sheet zinc, and six pieces of paper moistened with salt water. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 2 "Fairbanks, Erastus" to "Fens" 2011-06-19T02:00:16.580Z Davy had proved that, in the voltaic battery, something must be used up to produce the current—the mere contact of the metals is not sufficient. The Story of Great Inventions 2011-10-05T02:00:16.353Z Scientists and inventors now had two forms of electrical machines to produce light: the voltaic battery and the magneto-electric apparatus. Inventions in the Century 2011-07-20T02:00:14.643Z This kind may also be noted in the voltaic cell and the charged condenser, and in a chemical form in coal and gunpowder. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z He now continued his work with the voltaic pile or battery. Famous Men of Science 2011-03-08T03:00:49.717Z The Voltaic Pile.—This led him about 1799 to devise his famous voltaic pile consisting of disks of copper and zinc or other metals with wet cloth placed between the pairs. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z Between them lay a long brown table, stained and corroded by strong acids, and littered with giant carboys, Faure's accumulators, voltaic piles, coils of wire, and great blocks of nonconducting porcelain. The Man from Archangel and Other Tales of Adventure 2011-01-01T03:00:24.903Z Fabroni of Florence, and Sir Humphry Davy and Wollaston of England, commenced interesting experiments, showing that rapid oxidation and chemical decomposition of the metals took place in the voltaic pile. Inventions in the Century 2011-07-20T02:00:14.643Z Telegraphists and electro-platers are also indebted to him for his voltaic battery. The Scientific Basis of National Progress Including that of Morality 2010-12-30T03:00:25.567Z Its makers of photovoltaic solar panels and turbines would lose access to their most significant markets, Europe and the U.S., potentially driving large numbers of them out of business. The Perils of Protectionism 2010-10-07T18:58:00Z 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. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z That fabled "voltaic pile"-- a stack of alternating zinc and copper disks separated by layers of brine-sodden-paper -- didn't look much like today's sleek cylinders. Talk about battery life! Old device, new tricks. 2009-10-20T04:00:00Z Inventors were not yet satisfied with the power developed from either the voltaic battery or the magneto-electric machine, and continued to improve the latter. Inventions in the Century 2011-07-20T02:00:14.643Z The photo voltaic panels would make my house, which is over 300 years old, carbon negative. 2009-12-29T11:12:00Z Using the testing fuse manufactured by Abel and a weak voltaic current, the operator can at any time satisfy himself as to continuity. A brief sketch of the work of Matthew Fontaine Maury during the war, 1861-1865 This condition may be realized to some extent in a manner that throws light on the general theory of the voltaic cell. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z For several years preceding 1820, no other instrument could compare the “strengths” of two voltaic cells better than the test of the respective maximum lengths of this wire that they could heat to fusion. The Earliest Electromagnetic Instruments A voltaic battery furnished the current to conducting wires which led to two electric lamps on the mantel-piece of the drawing-room, and in which strips of platinum constituted the resisting and lighting medium. Inventions in the Century 2011-07-20T02:00:14.643Z Such currents, and with magnetic properties, are always induced by powerful currents of voltaic electricity passing through wires. The Philosophy of the Weather And a Guide to Its Changes Amp�re floated a voltaic battery with a coil of wire in its circuit in order to observe the effects of the earth’s magnetism on the electric circuit. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" The needle is charged to a potential 237 of 50 to 200 volts by means of a dry pile or voltaic battery, or from a lighting circuit. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z In summary, he reported that a compass needle experienced deviations when placed near a wire connecting the terminals of a voltaic battery. The Earliest Electromagnetic Instruments The two pointed pieces of hard conducting carbon used for the separated terminals constitute the voltaic arc light—a light only excelled in intense brilliancy by the sun itself. Inventions in the Century 2011-07-20T02:00:14.643Z With these words he handed her a piece of carbon, which he had taken from the voltaic pillar. Black Diamonds The current from one or two voltaic cells is led to an ebonite drum turned by a motor or a hand-wheel and cord. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 8 "Conduction, Electric" The 8th series is occupied with a discussion of the theory of the voltaic pile, in which Faraday accumulates evidence to prove that the source of the energy of the pile must be chemical. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z Oersted’s comment that the voltaic apparatus used should “be strong enough to heat a metallic wire red hot” does not excuse the 20-year delay of the discovery. The Earliest Electromagnetic Instruments The voltaic pile exhibited all its ordinary effects, giving its peculiar copperas taste, exciting the nervous system, and causing the decomposition of water. Harper's New Monthly Magazine, Vol. 2, No. 8, January, 1851 In these cases, insects were produced by the action of a powerful voltaic battery upon a saturated solution of silicate of potash, and upon ferro cyanuret of potassium. Ancient and Modern Celebrated Freethinkers Reprinted From an English Work, Entitled "Half-Hours With The Freethinkers." This is incorrect; zinc and silver produce a taste when in voltaic communication, because they decompose the saliva, and eliminate acid and alkaline constituents. Blackwood's Edinburgh Magazine - Volume 57, No. 352, February 1845 One of these coils was connected with the voltaic battery and the other with the galvanometer. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z In my lecture of September 16th, I showed that Oersted’s results depend, not on the voltaic cell, but only on the connecting circuit. The Earliest Electromagnetic Instruments No experiment appears, however, to have been made to determine the question until 1820, when Oersted placed a magnetic needle within the influence of a wire connecting the extremities with a voltaic battery. The International Monthly, Volume 3, No. 2, May, 1851 In 1811, at Glasgow, a noted chemist tried the effect of a voltaic "pile" of two hundred and seventy pairs of plates upon the body of a murderer. The Atlantic Monthly, Volume 20, No. 122, December, 1867 In the voltaic circuit, again, we can not have one current without its opposite. A System Of Logic, Ratiocinative And Inductive Practical Application of Heat, Steam, and Electricity: Making a simple voltaic cell, an electro-magnet, and a simple electroscope. Ontario Teachers' Manuals: Nature Study Despite the many uses made of voltaic cells after Volta’s announcement of his “pile” invention in 1800, two decades passed before Oersted discovered the magnetic effects of a voltaic circuit. The Earliest Electromagnetic Instruments The voltaic current was now, for the first time, observed to produce a deviation of the magnetic needle in different directions, and in different degrees, according to the relative situation of the wire and needle. The International Monthly, Volume 3, No. 2, May, 1851 In the first the voltaic arc is employed. A Color Notation A measured color system, based on the three qualities Hue, Value and Chroma In the equatorial regions, on the contrary, upright wheels placed parallel to the equator will originate a voltaic circuit, and water-falls will naturally become electric. A System Of Logic, Ratiocinative And Inductive The source of the electricity in the voltaic instrument is due almost entirely to chemical action. The World's Greatest Books — Volume 15 — Science Among the first to burn leaf metal with a voltaic pile was J. B. Tromsdorff of Erfurt who noted in 1801 the distinctly different colors of the flames produced by the various common metals. The Earliest Electromagnetic Instruments Many intelligent people have failed to apprehend the vast difference between the low tension of voltaic electricity and frictional electricity, lightning being in the nature of the latter. Lippincott's Magazine, Vol. 26, August, 1880 of Popular Literature and Science The first machines of Gramme, therefore, furnished direct currents, similar to those yielded by the voltaic pile. Fragments of science, V. 1-2 The treacherous suddenness of his attack—for he was treachery itself—had to be met by the voltaic suddenness of her resistance and counter-attack. The Lost Girl The most powerful voltaic combinations are formed by substances that act chemically with most energy upon each other, and such substances as undergo no chemical changes in the combination exhibit no electrical powers. The World's Greatest Books — Volume 15 — Science You will find one of Siebe and Gorman’s voltaic batteries in my lodging, also a frictional electrical machine, which you can use if you prefer it. Under the Waves Diving in Deep Waters Sorensen was absolutely correct in his statements about the state of the art of making voltaic cells. With No Strings Attached From one end of a voltaic battery runs a wire, dividing at a certain point into two branches, which reunite in a single wire connected with the other end of the battery. Fragments of science, V. 1-2 A voltaic arc lamp, using carbon electrodes, with mechanism for feeding the electrodes regularly. Electricity for Boys Chemical phenomena in connection with electrical effects can be shown even better by combinations in which the electrical effects are increased by alterations of different metals and fluids—the so-called voltaic batteries. The World's Greatest Books — Volume 15 — Science The ‘tontine’ was conceived by an Italian named Tonti; and another Italian, Galvani, first noted the phenomena of animal electricity or ‘galvanism’; while a third Italian, ‘Volta’, gave a name to the ‘voltaic’ battery. English Past and Present They brought Angélique into contact with a voltaic battery. The Atlantic Monthly, Volume 14, No. 83, September, 1864 It is thus burnt when acidulated water is poured over it; it is also thus burnt in the voltaic battery. Fragments of science, V. 1-2 A piece of living tissue, unequally injured at the two ends, is thus seen to act like a voltaic element, comparable to a copper and zinc couple. Response in the Living and Non-Living Admitting, however, that chemical action is the source of electricity, what an infinitely small fraction of that which is active do we obtain and employ in our voltaic batteries! The World's Greatest Books — Volume 15 — Science If we approach to the voltaic arc the south pole of a magnet the arc is attracted to such a degree that it leaves the rheophores and is extinguished. Scientific American Supplement, No. 315, January 14, 1882 Early in 1800 Volta wrote a letter to the President of the Royal Society of London announcing the epochal discovery of a device now known as the voltaic pile. Artificial Light Its Influence upon Civilization Before you are two small voltaic batteries of ten cells each. Fragments of science, V. 1-2 Or, bearing in mind the fact that an uninjured contact acts as the zinc in a voltaic couple, we might call it ‘zincoid,’ and the injured contact ‘cuproid.’ Response in the Living and Non-Living With this crude apparatus and with no greater electromotive force than could be attained from a voltaic pile, he converted charcoal into graphite, volatilized phosphorus from its compounds, isolated metallic calcium and synthesized calcium carbide. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries The experiments described in this paper throw considerable light upon the real cause of the voltaic current. Scientific American Supplement, No. 443, June 28, 1884 At first he believed that mere contact was sufficient, but when, later, it was shown that chemical action took place, rapid progress was made in the construction of voltaic cells. Artificial Light Its Influence upon Civilization By such arrangements the first difficulty was practically overcome; but the second, a graver one, is probably inseparable from the construction of the voltaic battery. Fragments of science, V. 1-2 A new and theoretically interesting molecular voltaic cell may thus be made, in which the two elements consist of the same metal. Response in the Living and Non-Living There are currents produced by chemical action called voltaic currents; by the action of heat, or thermo-electric currents; by the motion of magnets, or magneto-electric currents. A Catechism of Familiar Things; Their History, and the Events Which Led to Their Discovery. With a Short Explanation of Some of the Principal Natural Phenomena. For the Use of Schools and Families. Enlarged and Revised Edition. When a voltaic combination, in which the positive metal is thermo-negative, and the negative one is thermo-positive, is heated, the electric potential of the couple diminishes, notwithstanding that the internal resistance is decreased. Scientific American Supplement, No. 443, June 28, 1884 From a consideration of his source of electricity, a voltaic pile of two thousand plates, it is certain that this could not have been an electric spark. Artificial Light Its Influence upon Civilization What is here said regarding the voltaic battery is equally true of magneto-electric machines. Fragments of science, V. 1-2 For example, the simple voltaic cell and the gravity cell have approximately equal voltages, but the current produced by the voltaic cell is stronger than that produced by the gravity cell. General Science Of course, one cannot be expected to carry about a voltaic pile and go hunting for the medullary recesses of a savage and turbulent fish. Lippincott's Magazine of Popular Literature and Science October, 1877. Vol XX - No. 118 He was the first to take advantage of the action of secondary currents in voltaic batteries. Scientific American Supplement, No. 620, November 19,1887 It was supplied with current by a large voltaic cell, but the success of the electric arc was obliged to await the development of a more satisfactory source of electricity. Artificial Light Its Influence upon Civilization This is done through multiplying, by the use of thin wires, the convolutions of the rotating armature as, a moment ago, we augmented the cells of our voltaic battery. Fragments of science, V. 1-2 The voltage of a dry cell is approximately 1.5 volts, and the voltage of a voltaic cell and of a gravity cell is approximately 1 volt. General Science In fact, bass will not be induced to decently decease by any civilized process short of a powerful shock from a voltaic pile administered in the region of their medulla oblongata. Lippincott's Magazine of Popular Literature and Science October, 1877. Vol XX - No. 118 Chemistry has also interacted with the different branches of physics, giving us the voltaic battery, the telegraph, and the wonderful results of spectrum-analysis. The Atlantic Monthly, Volume 14, No. 82, August, 1864 By subscription among the members of the Royal Society, a voltaic battery of two thousand cells was obtained and in 1808 Davy exhibited the electric arc on a large scale. Artificial Light Its Influence upon Civilization This is easily done by the voltaic current. Fragments of science, V. 1-2 The hydrogen formed by the chemical action of the dilute sulphuric acid on the zinc moves toward the copper electrode, as in the simple voltaic cell. General Science I. We know that, by means of voltaic electricity or induction, we can crystallize a large number of substances. Scientific American Supplement, No. 613, October 1, 1887 On having been verified with a standard voltaic cell the apparatus becomes itself a standard, especially for small electromotive forces. Scientific American Supplement, No. 441, June 14, 1884. The cell is then, when the charging current ceases, capable of acting as a voltaic cell. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. All these effects are due to the power which we name an electric current, and which we figure as flowing through the wire when the voltaic circuit is complete. Fragments of science, V. 1-2 Zinc, in galvanizing iron, 49. in making hydrogen, 80.in voltaic cell, 307-308. General Science I took a voltaic apparatus, consisting of a single pair of large plates, namely, a cylinder of amalgamated zinc, and a double cylinder of copper. Experimental Researches in Electricity, Volume 1 A fertile field is here opened to discovery, although the voltaic pile has already taught us the intimate connection existing between electric, magnetic, and chemical phenomena. COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 A very simple voltaic cell may be made by placing two plates, one of copper and one of zinc, in a glass vessel partly filled with dilute sulphuric acid, as shown in Fig. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. To study this effect a platinum wire was stretched across the beam, the two ends of the wire being connected with the two poles of a voltaic battery. Fragments of science, V. 1-2 Why, look at it: it looks something like the light you saw at the poles of the voltaic battery. The Chemical History of a Candle See Battery, voltaic Voltaic spark without contact —— precautions Voltaic trough, . Experimental Researches in Electricity, Volume 1 The use of electricity from magnets instead of the voltaic battery was patented by J.S. Showell's Dictionary of Birmingham A History and Guide Arranged Alphabetically Commercial zincs, for use in voltaic cells as now manufactured, Page 98 usually have about 4 per cent of mercury added to the molten zinc before casting into the form of plates or rods. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Here, then, the electric current intervenes between my muscles and the generated heat, exactly as it did a moment ago between the voltaic battery and its generated heat. Fragments of science, V. 1-2 You see we have, therefore, heat enough in the candle, as in the voltaic battery, or in the highly-exalted combustion of the blowpipe, but we do not supply a continuous source of heat. The Chemical History of a Candle If a voltaic battery be used, these bodies are all electrolytes, and the evolution of gas, or the production of other changes, interferes and prevents observation of the effect required. Experimental Researches in Electricity, Volume 1 Into the cell are dipped two very thin platinum wires, and these are connected by other wires with a small voltaic battery. Six Lectures on Light Delivered In The United States In 1872-1873 Each of these particles acts with the surrounding zinc just as might be expected of any pair of dissimilar elements opposed to each other in an electrolyte; in other words, they constitute small voltaic cells. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. Let this rod be connected with one end of a powerful voltaic battery, a good metallic connection being established between the other end of the battery and the water-pipes under the street. Fragments of science, V. 1-2 The volatility of gold and silver is the same thing, whether it be effected by the voltaic battery or by the blowpipe. The Chemical History of a Candle I employed a voltaic battery of 100 pair of four-inch plates for experiments of a similar nature with electrolytes. Experimental Researches in Electricity, Volume 1 Before you is an instrument—a small voltaic battery—in which zinc is immersed in a suitable liquid. Six Lectures on Light Delivered In The United States In 1872-1873 In 1800, Volta, a physicist, also an Italian, threw further light on Galvani's discovery and produced what we know as the voltaic, or galvanic, cell. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. I twist a covered copper wire round this common poker; connecting the wire with the two ends of the voltaic battery, the poker is instantly transformed into a strong magnet. Fragments of science, V. 1-2 It is large enough to put your finger in, though the platinum itself was, as you saw, almost infusible, except by the voltaic battery. The Chemical History of a Candle I do not intend to deny that with such an apparatus common electricity can decompose water in a manner analogous to that of the voltaic pile; I believe at present that it can. Experimental Researches in Electricity, Volume 1 He employed a voltaic current to heat his platinum, and he studied, by means of a prism, the successive introduction of the colours of the spectrum. Six Lectures on Light Delivered In The United States In 1872-1873 Just why or how chemical action in a voltaic cell results in the production of a negative charge on the consumed plate is not known. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. I make the coil part of the wire which connects the two ends of the voltaic battery. Fragments of science, V. 1-2 Potassium, the metallic basis of potash, was discovered by Sir Humphrey Davy in 1807, who succeeded in separating it from potash by means of a powerful voltaic battery. The Chemical History of a Candle It will be my object to compare electricities from different sources, and especially common and voltaic electricities, by their power of producing these effects. Experimental Researches in Electricity, Volume 1 The story is told with great effect and power, but unless a voltaic lantern is included in the stage furniture, the ghastly tableaux must sink into the limbo of incredibilities. Lippincott's Magazine of Popular Literature and Science Volume 11, No. 23, February, 1873 From this series it is easy to see why zinc and copper, and also zinc and carbon, are often chosen as elements of voltaic cells. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The caress, so innocent, unpremeditated, and instinctive, ran through him like a voltaic shock. Tales of the Five Towns A solution of acetate of lead submitted to the action of the voltaic current, yields lead at the negative pole, and brown peroxide of lead at the positive pole. The Chemical History of a Candle The voltaic battery I had at my disposal consisted of 140 pairs of plates four inches square, with double coppers. Experimental Researches in Electricity, Volume 1 For this reason the ingenious expedient of a voltaic lantern under water has proved to be impracticable. Lippincott's Magazine of Popular Literature and Science Volume 11, No. 23, February, 1873 Voltaic Electricity, a current of electricity generated by chemical action between metals and different liquids as arranged in a voltaic battery. The Nuttall Encyclopædia Being a Concise and Comprehensive Dictionary of General Knowledge Some adjectives, though derived from proper nouns, are no longer capitalized; e.g. voltaic. Composition-Rhetoric Now, I am going to imitate the sunlight, by applying the voltaic battery to the electric lamp. The Chemical History of a Candle As heated air discharges common electricity with far greater facility than points, I hoped that voltaic electricity might in this way also be discharged. Experimental Researches in Electricity, Volume 1 This letter was written after the chemical changes in the voltaic cell had received a great deal of attention by many experimenters, the most prominent of whom was Davy. Popular Science Monthly Oct, Nov, Dec, 1915 — Volume 86 The box below the table contains the voltaic battery which actuates the electro-motor. Heroes of the Telegraph I had in my car a voltaic pile, consisting of sixty couples—silver and zinc. Wonderful Balloon Ascents Davy, of the safety-lamp, threw a volume of current across the gap between two sticks of charcoal, and the voltaic arc, forerunner of electric lighting, shed its bright beams upon a dazzled world. Edison, His Life and Inventions Hence it is evident that currents of voltaic electricity present phenomena of induction somewhat analogous to those produced by electricity of tension, although, as will be seen hereafter, many differences exist between them. Experimental Researches in Electricity, Volume 1 The ordinary voltaic cell is made by bringing together certain chemicals, whose reaction maintains the electric currents taken from the cell. The Project Gutenberg Encyclopedia Volume 1 of 28 Edison adopted the principle of making the vibrations of the voice control the intensity of a current which was independently supplied to the line by a voltaic battery. Heroes of the Telegraph The mercury is connected with the negative pole of the voltaic battery or other electro-motor, and the lead made with the positive pole of the same source. Scientific American Supplement, No. 433, April 19, 1884 The Edison invention involves the use of an entirely new voltaic combination in an alkaline electrolyte, in place of the lead-lead-peroxide combination and acid electrolyte, characteristic of all other commercial storage batteries. Edison, His Life and Inventions For the purpose of avoiding periphrasis, I propose to call this action of the current from the voltaic battery, volta-electric induction. Experimental Researches in Electricity, Volume 1 Kelvin and Helmholtz have shown that the E.M.F. of a voltaic cell oan be calculated from the energy developed by the chemical action. The Project Gutenberg Encyclopedia Volume 1 of 28 A small voltaic battery, placed under the machine, serves to work the electric motor, and has to be replenished from time to time. Heroes of the Telegraph Between them lay a long brown table, stained and corroded by strong acids, and littered with giant carboys, Faure's accumulators, voltaic piles, coils of wire, and great blocks of non-conducting porcelain. The Last Galley Impressions and Tales Grouped about his feet are a gear-wheel, voltaic pile, telegraph key, and telephone. Edison, His Life and Inventions All these results have been obtained with a voltaic apparatus consisting of a single pair of plates. Experimental Researches in Electricity, Volume 1 Recently, Mr. Pilleux has addressed to us some new experiments on the same subject, made on the voltaic arc produced by a De Meritens alternating current machine. Scientific American Supplement, No. 344, August 5, 1882 Sommering, a distinguished Prussian anatomist, in 1809 brought out a telegraph worked by a voltaic battery, and making signals by decomposing water. Heroes of the Telegraph It was with this powerful battery that Davy, in 1810, performed the experiment on the voltaic arc before the members of the Royal Institution. Scientific American Supplement, No. 430, March 29, 1884 It was in 1840, also, that after experimenting on improvements in voltaic apparatus, he turned his attention to "the heat evolved by metallic conductors of electricity and in the cells of a battery during electrolysis." Scientific American Supplement, No. 363, December 16, 1882 The instantaneous charge of a Leyden battery by the poles of a voltaic apparatus is another proof of the tension, and also the quantity, of electricity evolved by the latter. Experimental Researches in Electricity, Volume 1 The action of magnets upon the voltaic arc has been known for a long time past. Scientific American Supplement, No. 344, August 5, 1882 Sir Humphry Davy was the first to observe the extraordinary fusing power of the voltaic arc, but Siemens first applied it to a practical purpose in his electric furnace. Heroes of the Telegraph Arc welding makes use of the flame produced by the voltaic arc in practically the same way that oxy-acetylene welding uses the flame from the gases. Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon Action: electric, similarity of, in the electric eel and the voltaic battery. volcanic, centre of. connexion of. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3 Evolution of Heat.—The evolution of heat in wires and fluids by the voltaic current is matter of general notoriety. Experimental Researches in Electricity, Volume 1 Mr. Crosse was pursuing some experiments in crystallization, causing a powerful voltaic battery to operate upon a saturated solution of silicate of potash, when the insects unexpectedly made their appearance. Vestiges of the Natural History of Creation But spark or frictional electric telegraphs were destined to give way to those actuated by the voltaic current, as the chemical mode of signalling was superseded by the electro-magnet. Heroes of the Telegraph The energy of burning coal, through the steam-engine, working the dynamo, is far cheaper and more efficient for producing electricity than the consumption of metals through the voltaic pile. Beacon Lights of History, Volume 14 The New Era; A Supplementary Volume, by Recent Writers, as Set Forth in the Preface and Table of Contents The 'tontine' was conceived by Tonti, an Italian; another Italian, Galvani, first noted the phenomena of animal electricity or 'galvanism'; while a third, Volta, lent a title to the 'voltaic' battery. On the Study of Words Chemical decomposition.—The chemical powers of the voltaic current, and their subjection to certain laws, are also perfectly well known. Experimental Researches in Electricity, Volume 1 The phenomena of volcanoes, and those of earthquakes, have been considered of late as the effects of voltaic electricity, developed by a particular disposition of heterogeneous strata. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 At first they used the voltaic pile, but abandoned it in favour of Faraday's recent discovery that electricity could be generated in a wire by the motion of a magnet. Heroes of the Telegraph Any two of these metals constitute a voltaic cell. Man or Matter This combination, which is called a "thermo-electric couple," is clearly analogous to the voltaic couple, with heat in place of chemical affinity. The Story of Electricity Physiological effects.—The power of the voltaic current, when strong, to shock and convulse the whole animal system, and when weak to affect the tongue and the eyes, is very characteristic. Experimental Researches in Electricity, Volume 1 Still I could wish that he would put a stop to the incessant, alarming whirl of his voltaic battery. Table Talk Essays on Men and Manners Here, under Davy's direction, the largest voltaic battery yet constructed had been put in operation, and with its aid the brilliant young experimenter was expected almost to perform miracles. A History of Science — Volume 4 Professor Jacobi, of St. Petersburg, bad shown that the motion of an electro-magnetic machine generates magneto-electricity in opposition to the voltaic current of the battery. A History of Science — Volume 3 The internal resistance of a "thermo-electric pile" is, of course, very slight, the metals being good conductors, and this fact gives it a certain advantage over the voltaic battery. The Story of Electricity The eye cannot distinguish the difference between a voltaic and a common electricity spark, if they be taken between amalgamated surfaces of metal, at intervals only, and through the same distance of air. Experimental Researches in Electricity, Volume 1 If Claes persists in sending for reagents, retorts, voltaic batteries, and other such playthings, what will become of you? The Alkahest His object now is to compare frictional with voltaic electricity. Faraday as a Discoverer The author discovered, therefore, that the heat evolved by the voltaic current is invariably proportional to the square of the current, however the intensity of the current may be varied by magnetic induction. A History of Science — Volume 3 The action of the thermo-pile, like that of a voltaic cell, can be reversed. The Story of Electricity He used two tubes, each having a wire within it passing through the closed end, as is usual for voltaic decompositions. Experimental Researches in Electricity, Volume 1 Here," he said, stopping before a china capsule in which two wires of a voltaic pile were dipped, "is an experiment whose results ought to be watched. The Alkahest To him we owe the discovery of the voltaic pile, to which for a brief interval we must now turn our attention. Faraday as a Discoverer These two pieces of metal form the basic principle of the modern galvanic battery, and led directly to Alessandro Volta's invention of his "voltaic pile," the immediate ancestor of the modern galvanic battery. A History of Science — Volume 3 The character of the electricity is precisely the same as that generated in the voltaic battery. The Story of Electricity When a piece of that substance, which had been fused and cooled, was introduced into the circuit of a voltaic battery, it stopped the current. Experimental Researches in Electricity, Volume 1 Relation by measure of common and voltaic Electricity. Experimental Researches in Electricity, Volume 1 Faraday now passes from terminology to research; he sees the necessity of quantitative determinations, and seeks to supply himself with a measure of voltaic electricity. Faraday as a Discoverer Chemical decomposition.—The chemical action of voltaic electricity is characteristic of that agent, but not more characteristic than are the laws under which the bodies evolved by decomposition arrange themselves at the poles. Experimental Researches in Electricity, Volume 1 Each coil therefore resembles an individual cell of a voltaic battery, connected in series. The Story of Electricity The assumption of conducting power and a decomposable condition by liquefaction, promises new opportunities of, and great facilities in, voltaic decomposition. Experimental Researches in Electricity, Volume 1 When any of the following substances in a fused state were interposed between copper and platina, voltaic action more or less powerful was produced. Experimental Researches in Electricity, Volume 1 His eyes are now steadily fixed on this wonderful voltaic current, and he must learn more of its mode of transmission. Faraday as a Discoverer To illustrate this I must say a few words on the voltaic pile185. Experimental Researches in Electricity, Volume 1 It thus makes a complete round, which is called the voltaic "circuit," and if the circuit is broken anywhere it will not flow at all. The Story of Electricity But admitting that chemical action is the source of electricity, what an infinitely small fraction of that which is active do we obtain and employ in our voltaic batteries! Experimental Researches in Electricity, Volume 1 In the first place, they prove, in the most decisive manner, that metallic contact is not necessary for the production of the voltaic current. Experimental Researches in Electricity, Volume 1 The dissolved salt, therefore, arranged in this fashion, was decomposed by the machine, exactly as it would have been by the voltaic current. Faraday as a Discoverer It was so effectual in its office as to carry off instantaneously electricity of the feeblest tension, even that of a single voltaic trough, and was essential to many of the experiments. Experimental Researches in Electricity, Volume 1 Numerous voltaic combinations and varieties of cell have been found out. The Story of Electricity These currents were always from a single pair of plates, and may be considered as elementary voltaic forces. Experimental Researches in Electricity, Volume 1 According to Dr. Davy60, the current deflected the needle and made magnets under the same law, as to direction, which governs currents of ordinary and voltaic electricity. Experimental Researches in Electricity, Volume 1 The voltaic current passing through a solution of this salt so decomposes it, that sulphuric acid appears at one pole of the decomposing cell and alkali at the other. Faraday as a Discoverer The instrument offers the only actual measurer of voltaic electricity which we at present possess. Experimental Researches in Electricity, Volume 1 This decay is owing to the wet forming a voltaic couple with the two dissimilar metals and rusting the iron. The Story of Electricity To compare, therefore, both forms of the voltaic trough in their decomposing powers, and to obtain accurate data as to their relative values, experiments of the following kind were made. Experimental Researches in Electricity, Volume 1 Immediately upon the completion of the communication with the voltaic battery, the current passed, and decomposition proceeded. Experimental Researches in Electricity, Volume 1 He thought that with a single voltaic cell he had obtained the spark before the metals touched, but he subsequently discovered his error. Faraday as a Discoverer In conjunction with the other proofs of identity hereafter to be given, these effects of points also prove identity instead of difference between voltaic and common electricity. Experimental Researches in Electricity, Volume 1 The electromotive force and current of a thermo-electric couple is very much smaller than that given by an ordinary voltaic cell. The Story of Electricity In order to obtain an idea of the additional interfering power of each added platina plate, six voltaic pairs and four intervening platinas were arranged as in fig. Experimental Researches in Electricity, Volume 1 The electro-chemical philosopher is well acquainted with some practical results obtained from the voltaic battery by MM.. Experimental Researches in Electricity, Volume 1 When this argument, which he employed independently, had clearly fixed itself in his mind, Faraday never cared to experiment further on the source of electricity in the voltaic pile. Faraday as a Discoverer One is the extreme difficulty of making a wooden trough constantly water-tight under the alternations of wet and dry to which the voltaic instrument is subject. Experimental Researches in Electricity, Volume 1 In fact, a small "voltaic arc," not luminous, but dark, seems to be formed between the points, and the vibrations probably alter its length, and, consequently, its resistance. The Story of Electricity In the ordinary voltaic pile, the influence of this effect will occur in all variety of degrees. Experimental Researches in Electricity, Volume 1 The increase of intensity or power of the current produced by a simple voltaic circle, with the increase of the force of the chemical action at the exciting place, is here sufficiently evident. Experimental Researches in Electricity, Volume 1 In other cases the substance added is not, when alone, subject to or a conductor of the powers of the voltaic battery, and yet both gives and receives power when associated with water. Experimental Researches in Electricity, Volume 1 Spark.—The brilliant star of light produced by the discharge of a voltaic battery is known to all as the most beautiful light that man can produce by art. Experimental Researches in Electricity, Volume 1 Becquerel, the French chemist, found that two plates of silver freshly coated with silver from a solution of chloride of silver and plunged into water, form a voltaic cell which is sensitive to light. The Story of Electricity The following experiments complete the series of proofs of the origin of the electricity in the voltaic pile. Experimental Researches in Electricity, Volume 1 The accordance between it and voltaic electricity is in this respect complete. Experimental Researches in Electricity, Volume 1 Finally, the experiment was extended into the following form, supplying in this case the tidiest analogy between common and voltaic electricity. Experimental Researches in Electricity, Volume 1 The connexions of P and N with the voltaic battery are of course to be continued during the whole time. Experimental Researches in Electricity, Volume 1 When perchloride of mercury was subjected to the voltaic current, it did not conduct in the solid state, but it did conduct when fluid. Experimental Researches in Electricity, Volume 1 This is simply the case of two voltaic pairs of metals arranged so as to form one circuit. Experimental Researches in Electricity, Volume 1 The two elementary electric currents, moving in opposite directions, from pole to pole, constitute the ordinary voltaic current. Experimental Researches in Electricity, Volume 1 On separating the tube from the voltaic battery the volume of gas immediately began to diminish, and in about five hours only 13-1/2 parts remained, and these ultimately disappeared. Experimental Researches in Electricity, Volume 1 This effect could be repeated at pleasure, and thus the maximum phenomenon could be produced without the aid of the voltaic battery. Experimental Researches in Electricity, Volume 1 See Discharge, disruptive Discharge, electric, as balls of fire —— of Leyden jar —— of voltaic battery by hot air —— —— points —— velocity of, in metal, varied —— varieties of —— brush, . Experimental Researches in Electricity, Volume 1 On employing one voltaic pair and one interposed zinc plate, fig. Experimental Researches in Electricity, Volume 1 What I mean is, that no electricity is evolved in any way, due or related to the causes which excite voltaic electricity, or proportionate to them. Experimental Researches in Electricity, Volume 1 See Battery, voltaic Turpentine, oil of, a good fluid insulator —— its insulating power destroyed —— charged —— brush in —— electric motions in , —— convective currents in . Experimental Researches in Electricity, Volume 1 Common electricity is diffused over the surface of the metal;—voltaic electricity exists within the metal. Experimental Researches in Electricity, Volume 1 Again, the ordinary chemical affinity was not enough under the circumstances to effect the decomposition of the water, as was abundantly proved by the inaction on plate B; the voltaic current was essential. Experimental Researches in Electricity, Volume 1 Plates of platina and copper, arranged as a voltaic pile with dilute sulphuric acid, could not form a voltaic trough competent to act for more than a few minutes, because of this peculiar counteracting effect. Experimental Researches in Electricity, Volume 1 When only one voltaic pair of zinc and platina plates was used, the current of electricity was entirely stopped to all practical purposes by interposing one platina plate, fig. Experimental Researches in Electricity, Volume 1 When a wire in the voltaic circuit is heated, the temperature frequently rises first, or most at one end. Experimental Researches in Electricity, Volume 1 Suppose, for instance, that water is undergoing decomposition by the powers of a voltaic battery. Experimental Researches in Electricity, Volume 1 One of these wires was connected with the galvanometer, and the other with a voltaic battery. Experimental Researches in Electricity, Volume 1 When the ordinary voltaic battery is brought into action, its very activity produces certain effects, which re-act upon it, and cause serious deterioration of its power. Experimental Researches in Electricity, Volume 1 Should that prove to be the case, its influence in voltaic decomposition, and the transference of the elements to the poles, can hardly be doubted. Experimental Researches in Electricity, Volume 1 Relation by Measure of common and voltaic Electricity.Note respecting Amp�re's inductive resultsFourth Series.� Experimental Researches in Electricity, Volume 1 Still no difficulty can arise in recognising it to be the same spark as that from the voltaic battery, especially under certain circumstances. Experimental Researches in Electricity, Volume 1 I have constructed various voltaic arrangements, and found the above conclusion to hold good. Experimental Researches in Electricity, Volume 1 In an experiment in which one voltaic pair and one interposed platina plate were used with dilute sulphuric acid in the cells fig. Experimental Researches in Electricity, Volume 1 It is the opinion of several philosophers, that the presence of water is essential in electro-chemical decomposition, and also for the evolution of electricity in the voltaic battery itself. Experimental Researches in Electricity, Volume 1 When any of the same substances, or phosphate of soda, were made to act on platina and iron, still more powerful voltaic combinations of the same kind were produced. Experimental Researches in Electricity, Volume 1 When either nitrate of silver or chloride of silver was the fluid substance interposed, there was voltaic action, but the electric current was in the reverse direction. Experimental Researches in Electricity, Volume 1 The latter pole e was now connected with the negative end of a voltaic battery, of forty pairs of plates four inches square, whilst the former pole b was connected with the positive end. Experimental Researches in Electricity, Volume 1 I need hardly say that no copper is dissolved during the regular action of the voltaic trough. Experimental Researches in Electricity, Volume 1 After a little while the voltaic communication was broken, and the platina poles removed with as little agitation as possible from the water and solution, for the purpose of examining the liquid adhering to them. Experimental Researches in Electricity, Volume 1 With the mixture evolved at the poles of the voltaic pile, in pure dilute sulphuric acid, it continued longest; and with oxygen and hydrogen, of perfect purity, it probably would not be diminished at all. Experimental Researches in Electricity, Volume 1 A few observations on what are called the poles of the voltaic battery now seem necessary. Experimental Researches in Electricity, Volume 1 |
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