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Experiments with Alternate Currents of High Potential and High Frequency
Experiments with Alternate Currents of High Potential and High Frequency
Nikola Tesla
¥23.14
It was in this interesting border region, and from among these valiant Eastern folk, that Nikola Tesla was born in the year 1857, and the fact that he, today, finds himself in America and one of our foremost electricians, is striking evidence of the extraordinary attractiveness alike of electrical pursuits and of the country where electricity enjoys its widest application. Mr. Tesla's native place was Smiljan, Lika, where his father was an eloquent clergyman of the Greek Church, in which, by the way, his family is still prominently represented. His mother enjoyed great fame throughout the countryside for her skill and originality in needlework, and doubtless transmitted her ingenuity to Nikola; though it naturally took another and more masculine direction. The boy was early put to his books, and upon his father's removal to Gospic he spent four years in the public school, and later, three years in the Real School, as it is called. His escapades were such as most quick witted boys go through, although he varied the programme on one occasion by getting imprisoned in a remote mountain chapel rarely visited for service; and on another occasion by falling headlong into a huge kettle of boiling milk, just drawn from the paternal herds. A third curious episode was that connected with his efforts to fly when, attempting to navigate the air with the aid of an old umbrella, he had, as might be expected, a very bad fall, and was laid up for six weeks.. ABOUT AUTHOR: Nikola Tesla (1856 –1943) was a Serbian American inventor, electrical engineer, mechanical engineer, physicist, and futurist best known for his contributions to the design of the modern alternating current (AC) electricity supply system. Tesla gained experience in telephony and electrical engineering before emigrating to the United States in 1884 to work for Thomas Edison in New York City. He soon struck out on his own with financial backers, setting up laboratories and companies to develop a range of electrical devices. His patented AC induction motor and transformer were licensed by George Westinghouse, who also hired Tesla for a short time as a consultant. His work in the formative years of electric power development was involved in a corporate alternating current/direct current "War of Currents" as well as various patent battles. Tesla went on to pursue his ideas of wireless lighting and electricity distribution in his high-voltage, high-frequency power experiments in New York and Colorado Springs, and made early (1893) pronouncements on the possibility of wireless communication with his devices. He tried to put these ideas to practical use in an ill-fated attempt at intercontinental wireless transmission, his unfinished Wardenclyffe Tower project. In his lab he also conducted a range of experiments with mechanical oscillators/generators, electrical discharge tubes, and early X-ray imaging. He also built a wireless controlled boat, one of the first ever exhibited. Tesla was renowned for his achievements and showmanship, eventually earning him a reputation in popular culture as an archetypal "mad scientist". His patents earned him a considerable amount of money, much of which was used to finance his own projects with varying degrees of success. He lived most of his life in a series of New York hotels, through his retirement. Tesla died on 7 January 1943. His work fell into relative obscurity after his death, but in 1960 the General Conference on Weights and Measures named the SI unit of magnetic flux density the tesla in his honor. There has been a resurgence in popular interest in Tesla since the 1990s.
Magáért beszél
Magáért beszél
Lefkovics Péter
¥23.30
Mér? László korábbi nagy siker? k?nyvei komoly szellemi kalandot jelent?, gondolkodásra késztet?, ugyanakkor szórakoztató olvasmánynak bizonyultak. A Mindenki másképp egyforma 1999-ben elnyerte az ??v tudományos k?nyve Németországban” díjak egyikét. Mér? László új k?nyve a szerz? r?videbb, de nem kevésbé elmélyült, elgondolkodtató és szórakoztató írásait tartalmazza. Ezek t?bbsége a Magyar Narancs Egotrip rovatában jelent meg, a k?nyv címe azonos a szerz? ottani sorozatcímével. Ebben a k?nyvben a szerz? a legt?bb írást alaposan átdolgozta. A lényeg nemigen változott, de a szigorú újságcikk-m?faj szorításából kiszabadulva némelyik írás hosszabb, némelyik r?videbb lett – ahogy a téma kívánta. ?s hogy mi ez a talányos cím? A magyarázatot keresse a k?tetben! ?Eredeti szakmám matematikus, majd a m?szaki tudományokból kandidáltam, kés?bb pszichológiából lettem habilitált doktor, nemrég pedig a gazdaságpszichológia professzorává neveztek ki. Emellett k?zel húsz éve vezetek egy játékszoftver-fejleszt? céget, amelynek egyik alapítója vagyok. Tudományos szakcikkek mellett írtam néhány k?nyvet a szélesebb olvasók?z?nség számára is, ezek t?bb idegen nyelven is megjelentek. Az utóbbi években megszerettem a tárca m?faját is – ennek termését mutatja be ez a k?nyv.” Mér? László
The Secret Garden
The Secret Garden
Frances Hodgson Burnett
¥23.30
IT was just a year after the death of Galileo, that an infant came into the world who was christened Isaac Newton. Even the great fame of Galileo himself must be relegated to a second place in comparison with that of the philosopher who first expounded the true theory of the universe. Isaac Newton was born on the 25th of December (old style), 1642, at Woolsthorpe, in Lincolnshire, about a half-mile from Colsterworth, and eight miles south of Grantham. His father, Mr. Isaac Newton, had died a few months after his marriage to Harriet Ayscough, the daughter of Mr. James Ayscough, of Market Overton, in Rutlandshire. The little Isaac was at first so excessively frail and weakly that his life was despaired of. The watchful mother, however, tended her delicate child with such success that he seems to have thriven better than might have been expected from the circumstances of his infancy, and he ultimately acquired a frame strong enough to outlast the ordinary span of human life.For three years they continued to live at Woolsthorpe, the widow's means of livelihood being supplemented by the income from another small estate at Sewstern, in a neighbouring part of Leicestershire. In 1645, Mrs. Newton took as a second husband the Rev. Barnabas Smith, and on moving to her new home, about a mile from Woolsthorpe, she entrusted little Isaac to her mother, Mrs. Ayscough. In due time we find that the boy was sent to the public school at Grantham, the name of the master being Stokes. For the purpose of being near his work, the embryo philosopher was boarded at the house of Mr. Clark, an apothecary at Grantham. We learn from Newton himself that at first he had a very low place in the class lists of the school, and was by no means one of those model school-boys who find favour in the eyes of the school-master by attention to Latin grammar. Isaac's first incentive to diligent study seems to have been derived from the circumstance that he was severely kicked by one of the boys who was above him in the class. This indignity had the effect of stimulating young Newton's activity to such an extent that he not only attained the desired object of passing over the head of the boy who had maltreated him, but continued to rise until he became the head of the school.The play-hours of the great philosopher were devoted to pursuits very different from those of most school-boys. His chief amusement was found in making mechanical toys and various ingenious contrivances. He watched day by day with great interest the workmen engaged in constructing a windmill in the neighbourhood of the school, the result of which was that the boy made a working model of the windmill and of its machinery, which seems to have been much admired, as indicating his aptitude for mechanics. We are told that Isaac also indulged in somewhat higher flights of mechanical enterprise. He constructed a carriage, the wheels of which were to be driven by the hands of the occupant, while the first philosophical instrument he made was a clock, which was actuated by water. He also devoted much attention to the construction of paper kites, and his skill in this respect was highly appreciated by his schoolfellows. Like a true philosopher, even at this stage he experimented on the best methods of attaching the string, and on the proportions which the tail ought to have. He also made lanthorns of paper to provide himself with light as he walked to school in the dark winter mornings.
Broken: Part 2 of 3: A traumatised girl. Her troubled brother. Their shocking se
Broken: Part 2 of 3: A traumatised girl. Her troubled brother. Their shocking se
Rosie Lewis
¥23.45
Rosie Lewis is a full-time foster carer. She has been working in this field for over a decade. Before that, she worked in the special units team in the police force.Based in northern England, Rosie writes under a pseudonym to protect the identities of the children she looks after.
Broken: Part 3 of 3: A traumatised girl. Her troubled brother. Their shocking se
Broken: Part 3 of 3: A traumatised girl. Her troubled brother. Their shocking se
Rosie Lewis
¥23.45
Rosie Lewis is a full-time foster carer. She has been working in this field for over a decade. Before that, she worked in the special units team in the police force.Based in northern England, Rosie writes under a pseudonym to protect the identities of the children she looks after.
Managing Conflicts
Managing Conflicts
Birch, Dr. Ken
¥24.43
This book is a practical resource to help leaders manage, resolve cnflicts and reconcile the parties involved. Essential skills to accomplish this goal are embedded in discussion of major concepts and descriptions of real life situations.
Everything About Mars
Everything About Mars
My Ebook Publishing House
¥24.44
Everything About Mars
Great Astronomers
Great Astronomers
Sir Robert S. Ball
¥24.44
Great Astronomers
Universe: The Solar System and Beyond
Universe: The Solar System and Beyond
My Ebook Publishing House
¥24.44
Universe: The Solar System and Beyond
The Story of the Heavens
The Story of the Heavens
Sir Robert Stawell Ball
¥24.44
The Story of the Heavens
BMW 5 & 6 Series E12 - E24 - E28 -E34 Restoration Tips and Techniques
BMW 5 & 6 Series E12 - E24 - E28 -E34 Restoration Tips and Techniques
Andrew Everett
¥24.44
A wealth of restoration tips and techniques covering E12, E24, E28, E34, 5 and 6 Series BMWs built between 1972 and 1995. Covers all models from 518 to M6. Advice is given on acquiring a good 5 & 6 Series model, plus tips on restoring, engines, bodywork, trim, electrics, suspension & much more.
BMW E30 - 3 Series Restoration Guide
BMW E30 - 3 Series Restoration Guide
Andrew Everett
¥24.44
A practical restoration manual written by journalist and E30 enthusiast Andrew Everett. Covers E30 models: 316, 316i, 318i, 320i, 323i, 325i, 325e, 324d and 324td, 318iS, M3 & Alpina in saloon, convertible & touring forms. Professional advice also is given on buying a good used model E30 for restoration.
Azi cant jazz
Azi cant jazz
Mihaela Stanciu
¥24.44
sszefoglaló knyvem olyan témát mutat be, amivel már tbb ismeretterjeszt írásban találkozhatott az olvasó, ám ezúttal olyan részletekkel és érdekességekkel találkozunk, amit eme knyvek alig, vagy egyáltalán nem taglalnak. E szerzeményben végigkvetjük a Fld mélyérl induló izzó anyagot, a kérgen át a felszínig, ahol tüzet és pusztítást zúdít mindenre és mindenkire a kzelben. Bemutatom, hogy mi lesz a kihlt lávából, és milyen formákat hoz létre. Ezen külnleges természeti képzdmények kialakulását és fejdését vesszük górcs alá. Megismerkedünk pár külnleges tzhányóval, amik pusztításuk révén rendkívüli hatással voltak nemcsak krnyezetükre, hanem az emberiségre is. Olyan ismereteket mutatunk be, amelyek meglepetést okozhatnak az olvasóknak.
Confessions??
Confessions??
Chenguang Li
¥24.44
Diary of a separated woman. . ...This is an erotic short story about loving hot wives that clocks in at 3233 words. This story, Confessions, is very naughty and potentially shocking. We can't say too much. But, here is a sentence or two to sample: I was married for 18 years with a wonderful husband who cared for me until I found a brunette for whom I left...
Ham Radio: From Beginner to Badass
Ham Radio: From Beginner to Badass
Greg Molloy
¥24.44
Ham Radio: From Beginner to Badass
Be Your Own Doctor: Alternative Therapies For Conventional Prescriptions
Be Your Own Doctor: Alternative Therapies For Conventional Prescriptions
Thrive Learning Institute
¥24.44
Be Your Own Doctor: Alternative Therapies For Conventional Prescriptions
Wart Cure: A Complete Guide on How To Get Rid Of Warts For Good
Wart Cure: A Complete Guide on How To Get Rid Of Warts For Good
Jessica Blair
¥24.44
Wart Cure: A Complete Guide on How To Get Rid Of Warts For Good
The Biology, Physiology and Sociology of Reproduction
The Biology, Physiology and Sociology of Reproduction
Winfield S. Hall
¥24.44
The Biology, Physiology and Sociology of Reproduction
Paradigm? ?i incomensurabilitate
Paradigm? ?i incomensurabilitate
Bîgu Dragoș
¥24.44
Aceast? carte, bazat? pe 20 de ani de cercetare clinic? ?i ?tiin?ific? ?n ce prive?te rolul apei ?n organism, prezint? descoperirea extraordinar? c? deshidratarea cronic? neinten?ionat? produce stres, dureri cronice ?i multe boli degenerative ?nso?ite de durere. Gura uscat? nu este singurul semn de deshidratare; este gre?it s? a?tepta?i p?n? vi se face sete. Ve?i afla care sunt semnalele emise de organism c?nd duce lips? de ap?. Corectarea aportului de ap? – da, de ap?! ap? natural?, c?t mai curat? – v? poate ajuta s? tr?i?i mai s?n?tos, bucur?ndu-v? de o via?? lipsit? de durere. Ve?i ?nv??a: cum s? preveni?i ?n mod natural boli precum astmul bron?ic, alergiile, hipertensiunea arterial?; cum s? ameliora?i durerile, inclusiv pirozisul, durerea de spate, durerea artritic?, durerea din colit? ?i migrenele; cum s? folosi?i apa pentru a preveni ?i combate ?mb?tr?nirea prematur?; cum s? elimina?i f?r? efort kilogramele ?n plus, natural ?i f?r? restric?ii alimentare.
Blockchain Blueprint
Blockchain Blueprint
Jimmy Cooper
¥24.44
Blockchain Blueprint
The Astronomy of the Bible
The Astronomy of the Bible
E. Walter Maunder
¥24.44
The Astronomy of the Bible
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