| 单词 | electric arc |
| 例句 | In order to decarbonise its steel making processes, Tata wants to close Port Talbot's two blast furnaces, which use coal, and replace them with an electric arc furnace. Tata Steel: Steelworker fears for home as job cuts loom 2023-11-16T05:00:00Z Tata announced earlier this year it would close its two blast furnaces in Port Talbot and replace them with electric arc furnaces, with an expected loss of up to 3,000 jobs. British Steel plans to shut furnaces putting up to 2,000 jobs at risk 2023-11-06T05:00:00Z However, the money will see new electric arc furnaces replace existing blast furnaces, reducing the number of workers needed. Tata Steel: Unions condemn plans for UK's biggest steelworks 2023-11-01T04:00:00Z In September the UK government announced extra investment for the Port Talbot steelworks for the installation of new electric arc furnaces. Labour more ambitious for Tata Steel - Sir Keir Starmer 2023-10-23T04:00:00Z The steel plant, the UK's biggest, is to receive a subsidy of up to £500m from taxpayers to install an electric arc furnace and produce steel in a greener way. Rishi Sunak hints Wylfa could be preferred nuclear site 2023-09-28T04:00:00Z Cliffs CEO Lourenco Goncalves has said in interviews and earnings calls that criticism of blast furnaces’ carbon emissions ignores that electric arc furnaces cannot make the steel many car makers want. Cleveland-Cliffs clashes with U.S. Steel as sale process gets underway -sources 2023-09-20T04:00:00Z But it insisted that there were limited domestic cases where that kind of steel was needed, and that the output from electric arc furnaces covered most of the UK's needs. British Steel plans to shut furnaces putting up to 2,000 jobs at risk 2023-11-06T05:00:00Z The £1.2bn deal announced on Friday involves switching from using blast furnaces powered by fossil fuels to electric arc furnaces which can be powered by using renewable energy. Port Talbot: Tata Steel would have left UK without aid - Welsh secretary 2023-09-17T04:00:00Z The company's plans involve switching from using blast furnaces powered by fossil fuels to electric arc furnaces which can be powered by using renewable energy. Tata jobs fears remain despite funding for Port Talbot steelworks 2023-09-16T04:00:00Z Tata, the Indian conglomerate that owns the steelworks, will use the funding to help switch the plant’s two coal-fired blast furnaces to electric arc versions that can run on zero-carbon electricity. Around 3,000 jobs at risk at UK’s biggest steelworks despite government-backed package of support 2023-09-15T04:00:00Z Steel has been gradually transitioning to electric arc furnaces, which are cheaper to run and more environmentally friendly. Cleveland-Cliffs clashes with U.S. Steel as sale process gets underway -sources 2023-09-20T04:00:00Z Tata warned last year that its UK operations were under threat unless it secured government funding to help it move to less carbon-intensive electric arc furnaces. Tata Steel: Thousands of job losses must be managed - Drakeford 2023-09-15T04:00:00Z About two-thirds of U.S. steel comes from electric arc furnaces. Focus: Inside Cleveland-Cliffs' bid to keep U.S. blast furnaces smelting 2023-09-05T04:00:00Z The company would reportedly commit to building electric arc furnaces, which offer greener, less labour-intensive ways of producing steel than traditional blast furnaces. Port Talbot: UK offers Tata Steel £500m to fund green steel switch - report 2023-09-02T04:00:00Z Tata warned last year that its U.K. operations were under threat unless it secured Government funding to help it move to less carbon-intensive electric arc furnaces. Around 3,000 jobs at risk at UK’s biggest steelworks despite government-backed package of support 2023-09-15T04:00:00Z Burritt said the offers are “a validation of U.S. Steel’s strategy” of transformation, including expanding its electric arc furnace steelmaking and finishing capabilities. US Steel rejects a $7.3 billion offer from rival Cleveland-Cliffs; considers alternatives 2023-08-13T04:00:00Z She said the union supports modernisation and decarbonisation of the industry but " ignoring technologies outside of electric arc furnaces will mean tens of thousands of people will lose their livelihoods". Tata Steel: Thousands of job losses must be managed - Drakeford 2023-09-15T04:00:00Z Cliffs' devotion to blast furnaces, which are unionized unlike some electric arc furnaces, won it the support of United Steelworkers. Focus: Inside Cleveland-Cliffs' bid to keep U.S. blast furnaces smelting 2023-09-05T04:00:00Z To cut carbon dioxide emissions, Nippon Steel is considering shifting to electric arc furnaces from blast furnaces at two of its domestic steelmaking plants. Nippon Steel still in talks with Teck as it seeks stake in coal asset 2023-05-26T04:00:00Z A decision on support is needed soon, as the life of Tata's blast furnaces are coming to an end and electric arc furnaces take between four and five years to build. Tata Steel warns of uncertainty over future of UK business 2023-05-07T04:00:00Z By recycling scrap in electric arc furnaces, Nucor says its energy intensity is 74 percent lower than the global average and its greenhouse gas intensity is less than one-third the global average. Biden’s push to disclose climate risks hits wall of industry resistance 2023-05-02T04:00:00Z The offers are also too small to help with the estimated £2bn cost of transitioning from blast furnaces to more energy efficient electric arc furnaces, they said. British Steel to cut jobs amid fears for industry 2023-02-21T05:00:00Z Goncalves has said in interviews and earnings calls that criticism of blast furnaces' emissions ignores that electric arc furnaces cannot make the steel many car makers want. Focus: Inside Cleveland-Cliffs' bid to keep U.S. blast furnaces smelting 2023-09-05T04:00:00Z The more likely option for the two UK plants is a switch to electric arc furnaces. Government to offer £600m for green steel switch 2023-01-22T05:00:00Z These electric arc furnaces can run on renewable power, and are best used with recycled steel. UK considers £300m rescue funding for British Steel 2023-01-20T05:00:00Z The report said Tata wants to close two blast furnaces at Port Talbot and build two electric arc furnaces that will be less carbon intensive, at a cost of about £3bn. Port Talbot: Liz Truss promises talks with Tata on steelworks' future 2022-09-29T04:00:00Z This force is responsible for the pinch effect in electric arcs and plasmas. College Physics for AP Courses 2015-08-12T00:00:00Z Cliffs focused on dominating production of U.S.-made steel used in the external panels of cars, which require quality that electric arc furnaces currently cannot achieve. Focus: Inside Cleveland-Cliffs' bid to keep U.S. blast furnaces smelting 2023-09-05T04:00:00Z The report says Tata wants to close two blast furnaces at Port Talbot and build two electric arc furnaces, that will be less carbon intensive. Port Talbot: Tata steelworks could close without subsidy deal 2022-07-22T04:00:00Z The remaining 30 percent is almost all made through electric arc furnaces, which use an electrical current to melt steel — largely recycled scrap — and have far lower CO2 emissions than blast furnaces. The race to produce green steel 2022-05-17T04:00:00Z Steel said the new facility will have two electric arc furnaces with 3 million tons per year of advanced steelmaking capability, a “state of the art” endless casting and rolling line, and advanced finishing capabilities. US Steel to build $3 billion mill in northeast Arkansas 2022-01-11T05:00:00Z In an electric arc, where currents are moving parallel to one another, there is an attraction that squeezes currents into a smaller tube. College Physics for AP Courses 2015-08-12T00:00:00Z Goncalves is also betting that producing iron ore in-house for blast furnaces, rather than sourcing scrap steel for electric arc furnaces, will give Cliffs a competitive edge. Focus: Inside Cleveland-Cliffs' bid to keep U.S. blast furnaces smelting 2023-09-05T04:00:00Z Though steel firms, for example, have been encouraged to switch from blast furnaces to cleaner electric arc furnace technology in order to slash pollution, they are still forced to rely on coal-fired electricity. China's giant state-owned companies struggle to align climate rhetoric with reality 2021-11-01T04:00:00Z The resulting sponge iron then goes into an electric arc furnace, where it's eventually refined into steel. The race to produce green steel 2022-05-17T04:00:00Z The West has mostly switched to producing steel in efficient electric arc furnaces, which melt a mix of scrap and iron ore. China’s Power Problems Expose a Strategic Weakness 2021-10-13T04:00:00Z Figure 13.1 The welder’s gloves and helmet protect him from the electric arc that transfers enough thermal energy to melt the rod, spray sparks, and burn the retina of an unprotected eye. College Physics for AP Courses 2015-08-12T00:00:00Z So far, the nimbler electric arc furnaces have remained cheaper to run, amid fluctuations in demand for steel. Focus: Inside Cleveland-Cliffs' bid to keep U.S. blast furnaces smelting 2023-09-05T04:00:00Z Steelmakers are looking to expand the use of electric arc furnaces while also developing hydrogen and carbon capture technologies to cut emissions. Steel sector may be saddled with up to $70 billion stranded assets - report 2021-06-29T04:00:00Z The company would close a blast furnace in each of the two plants and build electric arc furnaces for scrap smelting. ArcelorMittal looking for partners, subsidies for cleaner steelmaking in Germany 2021-03-26T04:00:00Z China is trying to improve scrap collection from demolished buildings, but switching to electric arc furnaces will be gradual, said Sebastian Lewis, a Chinese energy and commodities consultant. China’s Power Problems Expose a Strategic Weakness 2021-10-13T04:00:00Z Larsen envisions the use of something called an electric arc furnace, a sort of industrial Eye of Sauron that melts scrap to help turn it into new steel. The race to zero: can America reach net-zero emissions by 2050? 2021-03-15T04:00:00Z Almost all other steel is made from scrap metal that's melted down in an electric arc furnace. How steel might finally kick its coal habit 2021-02-08T05:00:00Z Aberavon MP Stephen Kinnock said reported plans to shut two blast furnaces and replace them with electric arc furnaces raised "massive questions" about the future of the steel industry. 'Thousands' of jobs fears over reported Tata plans 2020-07-19T04:00:00Z Steel suspended work on the electric arc furnace in December 2015. US Steel cites Trump in resuming construction project 2019-02-11T05:00:00Z The bizarre illumination was sparked by an “electric arc flash” tied to faulty equipment at a Con Edison substation, a spokesman for the utility, Bob McGee, said early Friday. How an Explosion (Not Aliens) Turned New York’s Night Sky an Electric Blue 2018-12-28T05:00:00Z The blinding light of an electric arc is caused when a strong electrical current passes through the air. Eerie blue glow above New York City caused by electric arc 2018-12-28T05:00:00Z Nucor has led the sector’s transformation to labor-saving plants since the 1970s, replacing older blast furnaces with more efficient modern electric arc furnaces. Trump's steel tariffs create big profits but few new jobs 2018-11-13T05:00:00Z She helped him with experiments in physics and electricity, becoming an expert in her own right on the subject of the electric arc - an electrical breakdown of gas. Four women who changed the face of physics 2018-10-03T04:00:00Z In an electric arc furnace, scrap is melted using electricity. Analysis | How American steelmakers have survived — without Trump’s help 2018-03-06T05:00:00Z Technological changes in steelmaking, notably the rise of electric arc furnaces, also hit the town hard. Trump may prosper from tariffs even if this faded port town doesn’t 2018-03-02T05:00:00Z So when Priya and me turned our heads, we looked down at the smoky twilit water fuming and roiling phosphorescent white under electric arc lamps, like it was picked out in radium paint. Read an excerpt from Elizabeth Bear’s next steampunk adventure Stone Mad 2018-03-01T05:00:00Z If trade policies have eaten away at steel industry jobs, so have technological advances like Nucor’s electric arc furnaces, which recycle existing iron and steel instead of making it from scratch. Steel Industry, Seeing a New Dawn, Is Cheering for Trump 2017-05-11T04:00:00Z The business will increase output substantially at the electric arc furnaces, casting shop and bar mill in Rotherham, with bigger plans across the wider speciality business in the years ahead. Liberty House creates 300 extra steel jobs - BBC News 2017-05-02T04:00:00Z The groups say the plant in Harrison Township, about 25 miles northeast of Pittsburgh, is releasing more pollution from two electric arc furnaces than its 15-year-old permit allows. 4 groups sue Allegheny Technologies over permitted pollution 2017-03-24T04:00:00Z A big reason is political and economic turmoil in Turkey, the world’s top importer of steel scrap because of its cluster of electric arc furnaces. Nucor Profit Soars on Lower Costs, Improving Steel Prices 2016-07-21T04:00:00Z Electricity amazed visitors to the 1889 world fair in Paris, where searchlights beamed from the top of the newly constructed Eiffel Tower and colorful fountains were illuminated with electric arc lighting. The City of Lights, When It Was First Lighted 2016-06-04T04:00:00Z Every hour in front of parties of enthralled schoolchildren, there's a show of simulated sound and gushes of fire from the extraordinary electric arc process that turns scrap metal back into steel. The rise and fall of Britain's steel industry - BBC News 2016-05-21T04:00:00Z In addition to unlocking the mystery of ripples, Ayrton also became and expert on electric arcs, widely used in lighting at the time. Google Doodle Honors British Scientist Hertha Marks Ayrton 2016-04-28T04:00:00Z Steel production in electric arc furnaces is almost completely based on re-using scrap steel. Steel's global role in industry over the decades - BBC News 2016-04-04T04:00:00Z However, it plans in future to use an electric arc furnace to produce molten steel. Who might save Tata Steel in Port Talbot? - BBC News 2016-04-04T04:00:00Z According to the criminal charges, the company imported the electrodes, which are used to power electric arc steel furnaces, but lied about their size in April and June 2011 on shipments from Dalian, China. Pittsburgh-area company to plead in Chinese electrodes case 2016-02-22T05:00:00Z It's far larger than a cathedral or an airship hangar, and once housed six monstrous electric arc furnaces making steel from scrap. The rise and fall of Britain's steel industry - BBC News 2016-05-21T04:00:00Z The company was investigating the cause of the blast which involved an electric arc furnace. 2 hurt when AK Steel plant furnace explodes in Pennsylvania 2016-01-21T05:00:00Z At Big River Steel, one electric arc furnace, or EAF, will feed one caster, at least initially. Big River Steel Mill rises in northeast Arkansas 2015-11-22T05:00:00Z An adjoining plant that employs about 700 people will continue making steel pipe, the company said, and construction of an electric arc furnace will continue on the property. Business Highlights 2015-08-17T04:00:00Z "Preliminary investigation information suggests they crossed the 'electric energy thresh hold' of an overhead power line, causing an 'electric arc' to strike both firemen," police said. Kentucky firefighter critical after ice bucket challenge mishap 2014-08-22T04:00:00Z Once an hour they can watch a simulated "big melt", which seemingly brings back to life one of the huge electric arc furnaces that dominated the former Steel Peech and Tozer steelworks. Yorkshire's cutting edge technology 2014-04-02T14:39:30Z They're just electric arcs - in this case, electric arcs to the surface of this solution of electrolytes. New insights in to ball lightning 2013-08-19T08:47:54Z Scrap steel will be delivered to the melt shop to be melted by the EAF, which uses an electric arc to heat material. Big River Steel Mill rises in northeast Arkansas 2015-11-22T05:00:00Z SGL is the world's biggest supplier of the electrodes, used in electric arc furnaces that recycle scrap into steel, competing with GrafTech of the United States as well as Japan's Tokai Carbon and Nippon Carbon. UPDATE 1-SGL bets on scrap metal recovery with price hike 2013-07-23T10:29:52Z SGL is the world's biggest supplier of graphite electrodes used in electric arc furnaces that convert scrap steel. German electrode maker SGL looks for China partner 2013-04-25T16:28:06Z An ordinary flame cannot possess rigidity to a marked degree because the vibration is directionless; but an electric arc, it is believed, must possess that property more or less. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z If we interpose the intense calcium light or an electric arc light between the eye and the sun, these artificial sources will look like black spots on the disk. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z Through this cavernous place, lighted at all hours by numerous electric arcs, there passes, the entire working-day, a seemingly endless procession of motor-trucks, wagons and other carriers. The Romance of a Great Store 2012-02-20T03:00:21.577Z That would translate into higher demand for graphite electrodes for electric arc furnaces. UPDATE 1-SGL bets on scrap metal recovery with price hike 2013-07-23T10:29:52Z When the discharge takes place the electric arc is blown out, but if the balls are short-circuited by a condenser the oscillatory discharge of the condenser still takes place across the spark gap. Hertzian Wave Wireless Telegraphy 2012-01-09T03:00:20.570Z There is no hotter object that we can obtain than that of the electric arc. Scientific American Supplement, No. 648, June 2, 1888. 2011-12-26T03:00:15.410Z Certain changes in relative intensity were traced to a reduced temperature of the spot vapors by comparison with photographs of the spectrum of iron and other metallic vapors in an electric arc at different temperatures. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z 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 Quay walls of the Pasig had been improved, and the river illuminated from its mouth to the bridge by powerful electric arc lights. The Inhabitants of the Philippines 2011-11-23T03:00:21.653Z This tends to blow the arc out, as a puff of wind blows out a candle, an effect which a magnet always has upon an electric arc. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z Incandescent particles of carbon pass between the two points, forming a sort of bridge or arch, which is called the electric arc. Scientific American Supplement, No. 648, June 2, 1888. 2011-12-26T03:00:15.410Z Indeed, the sun is nearly four times brighter than the "crater," or brightest part of the electric arc. Astronomy: The Science of the Heavenly Bodies 2012-03-17T02:01:02.630Z Down low on the horizon, above the line of hills, swung the half-moon, aglow with soft pale light, while the nearby electric arcs were scarcely affected by the haze that enveloped them. An Oregon Girl A Tale of American Life in the New West 2011-11-17T03:00:31.330Z Carbon powder compressed into a rod was slowly passed through a tube in which it was subjected to the action of one or more electric arcs. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z The greatest heat of all is that of the electric arc. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z The next video exhibits the technology's further potential for use in future microscale factories: The magnetic mechanisms are shown scooping up objects onto mini forklifts, actuating syringes and executing rudimentary electric arc–cutting tasks. Tiny Toilers: Precision-Controlled Microbots Show They Could Take On Industrial-Scale Jobs [Video] 2011-10-21T15:45:00.260Z But this is impossible with the electric arc. The Story of Great Inventions 2011-10-05T02:00:16.353Z The flame of the candle-bush shone as clear as the electric arc, and arose in a tall pyramid. Lodges in the Wilderness 2011-06-15T02:00:17.057Z Scrap from collapsed buildings to junked cars is recycled into new steel by melting in electric arc furnaces. China Stops New Orders for Japanese Scrap Steel, Umetal Says 2011-04-04T04:19:15Z The electric arc is, as we all know, a very powerful light, in fact it can be made the most powerful of all, but its light is decidedly bluish. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z In these arrangements, which were similar if not identical, the furnace charge was crushed to a fine powder and passed through two or more electric arcs in succession. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z The electric arc is suitable for lighting streets and for large buildings, but cannot be used for lighting houses. The Story of Great Inventions 2011-10-05T02:00:16.353Z Her investigations on the electric arc and on the sand ripples of the seashore won for her the first medal ever awarded to a woman by the Royal Society. Woman in Science With an Introductory Chapter on Woman's Long Struggle for Things of the Mind 2011-01-12T03:00:29.853Z The sides of the ladder are the spectra furnished by the incandescent carbons of the lamp, and the cross pieces are the spectrum of the electric arc filling the space between the carbons. A Text-Book of Astronomy 2011-01-05T03:00:57.347Z For this reason the mantle heated by gas gives as bright a light as the carbon particles in the electric arc, although the latter are subjected to a much more intense heat. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z This invention in conjunction with an alternating current dynamo provided a new and simple form of electric arc lighting. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z The Electric Furnace and the Greatest Heat The greatest heat that has yet been produced artificially is that of the electric arc. The Story of Great Inventions 2011-10-05T02:00:16.353Z He spent Election Day far from the Oval Office and far from Specter and Lincoln too, touring an 85-ton electric arc furnace in Youngstown, Ohio, in search of an alibi. The Pitchfork Primaries: Will Washington Get the Message? 2010-05-20T08:55:00Z But Obama, who once promised his "full support" of Specter, made no mention of the primary, choosing instead to tour an 85-ton electric arc furnace. Incumbents Beware: Primary Voters Send Harsh Message to Both Parties 2010-05-19T05:30:00Z Consequently we should be inclined to expect from theory that the electric arc would not be a good light for a lighthouse, since it would lack penetrating power in foggy weather. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z There is no question whatever as to which of the available sources of light most perfectly combines all the above if it is available, viz. the electric arc. Optical Projection Part 1: Projection of Lantern Slides The exact temperature of the electric arc is not known with certainty. The Story of Great Inventions 2011-10-05T02:00:16.353Z He causes an electric arc to pass between two rods of the metal immersed in distilled water. The Mechanism of Life Many of you have noticed in a country village, where the streets are lighted with electric arc lamps, what a difference there is in the illuminating effect between a clear and a foggy night. Nature's Miracles, Volume 1 Familiar Talks on Science—World-Building and Life. Earth, Air and Water. So although there are some lighthouses with electric arc lights, that which is now believed to be the best is an oil lamp of special design, using a mantle of the Welsbach type. Marvels of Scientific Invention An Interesting Account in Non-technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-date Smelting, Freezing, Colour Photography, and many other recent Discoveries of Science 2011-11-19T03:00:24.517Z An electric arc is far preferable to a lime-light, both because the shadows are sharper, and because the colours are so much more brilliant. Soap-Bubbles and the Forces Which Mould Them Can also be furnished with an electric arc lamp, when it can be used at 12 feet, with the maximum illumination, projecting an image of about 42 inches. Kodaks and Kodak Supplies 1914 The heat developed in the so-called electric arc is so great as to fuse the most refractory substances. The Telephone An Account of the Phenomena of Electricity, Magnetism, and Sound, as Involved in Its Action It is, however, infusible at the temperature of the electric arc, but becomes converted superficially into graphite. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" It looked like the discharge from some huge electric arc. The Lost Warship The trace of the vibrating prongs of a tuning-fork of known period is also recorded on the plate, the light used being that of the electric arc. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" The shimmering blue of the electric arc lamps was strong in the main street of the town. The Monster and Other Stories They melted in the furnace blast as though they were bits of metal in an electric arc. Slaves of Mercury So many fires are caused by electric arcs forming in buildings, that you had better go back to the beginning of this section and read it all through again carefully. Common Science A subterraneous Herculaneum—surely a perfectly unique place of pilgrimage, just as it was nearly two thousand years ago—might be lighted by electric arc lights. Italy, the Magic Land The metal as obtained in this process is lustrous and takes a polish, does not melt in the oxyhydrogen flame, but liquefies in the electric arc, and is not affected by air at ordinary temperatures. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" An electric arc, which is a current in the air, and is, therefore, less constrained than it is in a conductor, rotates. The Machinery of the Universe Mechanical Conceptions of Physical Phenomena No light could come from the tube, because the shield which covered it was impervious to any light known, even that of the electric arc.” Little Masterpieces of Science: Invention and Discovery What happens when you form an electric arc is this: As you draw the two ends of the pencils apart, only a speck of the lead in each touches the other. Common Science The introduction of the electric arc lamp and the incandescent glow-lamp seemed at one time to spell the doom of gas as an illuminating agent. How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use Its colour was described as "of an intense luminous silver, with a bluish tinge, similar to the light of an electric arc." A Popular History of Astronomy During the Nineteenth Century Fourth Edition An electric arc begins to spread out as the density of the air decreases, and presently it is extinguished. The Machinery of the Universe Mechanical Conceptions of Physical Phenomena His wife, Mrs Hertha Ayrton, whom he married in 1885, assisted him in his researches, and became known for her scientific work on the electric arc and other subjects. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" The danger from the electric arc is like the danger from gasoline spilled and matches dropped where you are not expecting them, so that you are not protected against them. Common Science But my problem is to find a way of making an electric arc light which will go without an expensive mechanism and be self-regulating without machinery. The High Calling These consist of an electric arc lamp of 25,000 candle-power, combined with a reflector, which concentrates the light so that it brilliantly lights up objects at a great distance. How Britannia Came to Rule the Waves Updated to 1900 In furnaces of this kind the electric arc is the mechanical form used to produce the great heat, the only difference being in the size of the apparatus. Electricity for Boys I noticed that I could take a faidon right out of an electric arc and it wouldn't even be warm. Skylark Three Why is an electric arc in a circuit dangerous? Common Science Only in the intense heat of the electric arc does carbon volatilize, passing directly from the solid state into a vapor. An Elementary Study of Chemistry That space between the ends of the two wires is the electric arc. The Wonder Island Boys: Exploring the Island Ordinary fuels under certain favorable conditions will produce a temperature of 4,500 degrees of heat; but by means of the electric arc, as high as six, eight and ten thousand degrees are available. Electricity for Boys This causes tremendous arcs to form between the lower ends of the electrodes and the metal below, and these electric arcs are the only source of heat in this style of furnace. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel It requires the high voltage of a city power line to make a dangerous electric arc. Common Science In the one type the source of heat is an electric arc formed between carbon electrodes separated a little from each other, as shown in Fig. An Elementary Study of Chemistry He first employed it to produce the electric arc, and showed that from 44 cells a light equal to 1171.3 candles could be obtained with the consumption of one pound of zinc per hour. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" To look downwards was like staring straight into the focus of a ten thousand candle-power electric arc lamp. A Honeymoon in Space During the chemical reaction an intense heat is produced—a heat so great that it almost equals that of an electric arc. Kelly Miller's History of the World War for Human Rights Unfortunately, however, the fuse is almost no protection against an electric arc. Common Science In order to reconcile this fact with its coolness as an illuminating agent, we have to take into consideration the extreme smallness of the point from which the light radiates in the electric arc. Scientific American Supplement, No. 315, January 14, 1882 It is the extreme viscosity of quartz, at the heat even of an electric arc, that makes these fibers possible. Scientific American Supplement, No. 717, September 28, 1889 This is surely a description of the electric arc. Artificial Light Its Influence upon Civilization So the object is to spread out the electric arc as widely as possible and then run the air through it rapidly. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Iron tracks are welded together with an electric arc. Common Science When he came to, the electric arcs were gone, but the guy who thought he was Nicola Tesla was motionless in his straps, under his hood. Home Again, Home Again They fluttered around him like moths about an electric arc, and they even deserted their former pre-emptions for the new float prospects. Skookum Chuck Fables Bits of History, Through the Microscope In 1838 Gassiot made the discovery that the temperature of the positive electrode of an electric arc is much greater than that of the negative electrode. Artificial Light Its Influence upon Civilization In the Schönherr process the electric arc is a spiral flame twenty-three feet long through which the air streams with a vortex motion. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Sir W. Siemens attempted to utilize the intense heat of an electric arc for this purpose, but accomplished little beyond fusing several pounds of steel. Scientific American Supplement, No. 508, September 26, 1885 The electric arc lights were sparsely scattered, but there was sufficient illumination for him to make out a fugitive figure just crossing the broad roadway towards the freight tracks. Bart Stirling's Road to Success Or, The Young Express Agent Then he found spirit enough for a pale, thin smile, faintly visible in a milky splash from an electric arc rocking by the vehicle in its flight. The Day of Days An Extravaganza The electric arc was born in the cradle of this enthusiasm, and in the heating of metals by electricity the future incandescent lamp had its beginning. Artificial Light Its Influence upon Civilization In the intense heat of the electric arc these forms are convertible one into the other according to the conditions. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Cut the current and the electric light dies; slacken the engine and the electric arc becomes dim, quicken it and it burns bright. Expositions of Holy Scripture Ezekiel, Daniel, and the Minor Prophets. St Matthew Chapters I to VIII Carbon.—Chlorine does not unite with carbon even at the high temperature of the electric arc, but fluorine reacts even at the ordinary temperature with finely divided carbon. Scientific American Supplement, No. 832, December 12, 1891 The process consists in decomposing the mixture of phosphoric acid, or acid phosphates and carbon, by the heat of the electric arc embedded in the mass. Scientific American Supplement, No. 810, July 11, 1891 Ever since its advent the electric arc has been employed in large search-lights, with which the army and the navy were supplied; however, the greatest improvements have been made under the stress of war. Artificial Light Its Influence upon Civilization Where the wires meet an electric arc is set up and the melted zinc is sprayed out by a jet of compressed air. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries He is built of the same kind of matter as the earth and other planets, but is hotter than the hottest electric arc or reverberatory furnace. A Trip to Venus "With the electric arc, sir," answered the chemist, mopping his brow. The Air Trust The sending apparatus was so arranged that continuous oscillations are set up in the ether, either by a high-frequency machine or from an electric arc. Masters of Space Morse, Thompson, Bell, Marconi, Carty The control of light by means of reflectors has been studied for centuries, but until the advent of the electric arc the light-sources were of such large areas that effective control was impossible. Artificial Light Its Influence upon Civilization But by the bringing of two carbon rods together, as in the electric arc light, we can get enough heat to volatilize the carbon at the tips, and this means over 7000 degrees Fahrenheit. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries It may be remarked that the same kind of burning is effected by the electric arc light, which is known to be very rich in these rays. Scientific American Supplement, No. 595, May 28, 1887 At the high temperature of the electric arc in air, the molecules of nitrogen and oxygen dissociate into their atoms. The Air Trust He would put a piece of meteorite in the electric arc to see what light it would give; he had never tried the experiment before. Scientific American Supplement, No. 531, March 6, 1886 In 1848 the first electric arc lamp used for general lighting was installed in Paris. Artificial Light Its Influence upon Civilization The electric arc is spread into this disk flame by the repellent power of an electro-magnet the pointed pole of which is seen at bottom of the picture. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Yet the very vogue of the electric arc light made harder the arrival of the incandescent. Edison, His Life and Inventions C., but can he fused in the electric arc. The Project Gutenberg Encyclopedia Volume 1 of 28 Here were sidewalks, pavements, throbbing electric arcs, Englishmen in evening dress, fair Englishwomen in dainty gowns and pretty wraps, the hum of English voices, the very smell of civilisation. The Bronze Bell 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 spot diminished to an intense point, like an electric arc between carbons. The Cruise of the Dry Dock With the exception of the electric arc, self-luminous acetylene yields a flame of unsurpassed intensity, and yet its light is agreeably soft. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power A mixture of ground coke and lime is introduced into the furnace through which an electric arc has been drawn. 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 The high electric arcs were motionless, and the shadows cast by their steel-blue glare lay on the pave as if painted in lampblack. Alias the Lone Wolf With the advent of the dynamo, the electric arc was rapidly developed and thus there became available a concentrated light-source of high intensity and great brilliancy. Artificial Light Its Influence upon Civilization An electric arc or a vacuum tube sets up sustained oscillations, that is, oscillations which are continuous. The Radio Amateur's Hand Book In the light of an electric arc, which sizzled and sputtered on the corner, he saw a dark form half hidden in the snow piled about the doorway of the building. That Printer of Udell's What difficulties are to be encountered in applying the electric arc to welding? 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 The room was partly revealed by an electric arc that swung at the street corner—its mellowed beams entered the open window. Fran This is also true of the electric arcs, and the flame-arcs may be varied widely by using different chemical compounds in the carbons. Artificial Light Its Influence upon Civilization The electric arc," he continued, "isn't always just a silent electric light. Guy Garrick In the bottom of the Mermaid were set a number of powerful electric arc lights with reflectors, constructed to throw the beams downward. Five Thousand Miles Underground Or, the Mystery of the Centre of the Earth What is the comparative application of the electric arc and the oxy-acetylene method and others of a similar nature? 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 A sheet of dazzling light, which is called the electric arc, is seen to bridge the gap. The Story of Electricity In the earlier years of this kind of treatment the electric arc was conspicuous. Artificial Light Its Influence upon Civilization An electric arc light in the ceiling of the corridor shone brightly upon his table. Rolling Stones When heated in the electric arc, at very high temperatures, diamond swells and turns black. An Introduction to Chemical Science The next question is the adaptability of the electric arc in comparison with forge fire, oxy-acetylene or other method. 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 The electric arc is also applied to the welding of wires, boiler plates, rails, and other metal work, by heating the parts to be joined and fusing them together. The Story of Electricity 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 On the right, in the farther distance, Circular Quay flashed with the gleam of electric arcs, each contracted into a star of four points. Jonah The electric arc, however, will melt even this, and the most refractory vessels are of calcium oxide or of graphite. An Introduction to Chemical Science The electric arc is used in this connection merely as a heating agent. 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 The electric arc not only supplies light, but heat of great intensity which the electrical engineer as well as the pure scientist has found so valuable for many practical operations. The Story of Electricity In one of these volumes is found an account of a lecture-experiment by Davy which certainly is a description of the electric arc. Artificial Light Its Influence upon Civilization I know your game—the water forms acetylene with the carbon, and that uniting with the nitrogen of the air under the terrific heat of the electric arc forms hydrocyanic acid. The Silent Bullet Al2O3 has lately been reduced by C. Higher temperatures than have heretofore been known are obtained by means of the electric arc and large dynamo machines. An Introduction to Chemical Science Typhus and tubercle bacilli are destroyed equally well by the direct rays from the sun and from the electric arcs. Artificial Light Its Influence upon Civilization By the use of the electric arc and passing air through a furnace, various substances have been tried to take up the nitrogen of the air. The Story of Electricity |
| 随便看 |
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。