Nikola Tesla Radiated a Blue Light
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Thomas Edison Vs Nikola Tesla THOMAS EDISON VS NIKOLA TESLA
M C SCIENTIFIC RIVALRIES PHERSON AND SCANDALS In the early 1880s, only a few wealthy people had electric lighting in their homes. Everyone else had to use more dangerous lighting, such as gas lamps. Eager companies wanted to be the first to supply electricity to more Americans. The early providers would set the standards—and reap great profits. Inventor THOMAS EDISON already had a leading role in the industry: he had in- vented the fi rst reliable electrical lightbulb. By 1882 his Edison Electric Light Company was distributing electricity using a system called direct current, or DC. But an inventor named NIKOLA TESLA challenged Edison. Tesla believed that an alternating cur- CURRENTS THE OF rent—or AC—system would be better. With an AC system, one power station could deliver electricity across many miles, compared to only about one mile for DC. Each inventor had his backers. Business tycoon George Westinghouse put his money behind Tesla and built AC power stations. Meanwhile, Edison and his DC backers said that AC could easily electrocute people. Edison believed this risk would sway public opinion toward DC power. The battle over which system would become standard became known as the War of the Currents. This book tells the story of that war and the ways in which both kinds of electric power changed the world. READ ABOUT ALL OF THE OF THE SCIENTIFIC RIVALRIES AND SCANDALS BATTLE OF THE DINOSAUR BONES: Othniel Charles Marsh vs Edward Drinker Cope DECODING OUR DNA: Craig Venter vs the Human Genome Project CURRENTS THE RACE TO DISCOVER THE -
Thomas Edison Alexander Graham Bell
The Inventing Game Cut out the images. Cut out the name of the inventor separately. Read out the text as a clue. Can people match the correct name and image? THOMAS EDISON Clue The first great invention developed by (don’t say the name) Thomas Edison was the tin foil phonograph. A prolific producer, Edison is also known for his work with light bulbs, electricity, film and audio devices, and much more. ALEXANDER GRAHAM BELL Clue In 1876, at the age of 29, (don’t say the name) Alexander Graham Bell invented his telephone. Among one of his first innovations after the telephone was the "photophone," a device that enabled sound to be transmitted on a beam of light. GEORGE WASHINGTON CARVER Clue (Don’t say the name) George Washington Carver was an agricultural chemist who invented 300 uses for peanuts and hundreds of more uses for soybeans, pecans, and sweet potatoes. His contributions chang ed the history of agriculture in the south. ELI WHITNEY Clue (Don’t say the name) Eli Whitney invented the cotton gin in 1794. The cotton gin is a machine that separates seeds, hulls, and other unwanted materials from cotton after it has been picked. JOHANNES GUTTENBERG Clue (don’t say the name) Johannes Gutenberg was a German goldsmith and inventor best known for the Gutenberg press, an innovative printing machine that used movable type. JOHN LOGIE BAIRD Clue (don’t say the name) John Logie Baird is remembered as the inventor of mechanical television (an earlier version of television). Baird also patented inventions related to radar and fibre optics. -
Wireless Power Transmission
International Journal of Scientific & Engineering Research, Volume 5, Issue 10, October-2014 125 ISSN 2229-5518 Wireless Power Transmission Mystica Augustine Michael Duke Final year student, Mechanical Engineering, CEG, Anna university, Chennai, Tamilnadu, India [email protected] ABSTRACT- The technology for wireless power transfer (WPT) is a varied and a complex process. The demand for electricity is much higher than the amount being produced. Generally, the power generated is transmitted through wires. To reduce transmission and distribution losses, researchers have drifted towards wireless energy transmission. The present paper discusses about the history, evolution, types, research and advantages of wireless power transmission. There are separate methods proposed for shorter and longer distance power transmission; Inductive coupling, Resonant inductive coupling and air ionization for short distances; Microwave and Laser transmission for longer distances. The pioneer of the field, Tesla attempted to create a powerful, wireless electric transmitter more than a century ago which has now seen an exponential growth. This paper as a whole illuminates all the efficient methods proposed for transmitting power without wires. —————————— —————————— INTRODUCTION Wireless power transfer involves the transmission of power from a power source to an electrical load without connectors, across an air gap. The basis of a wireless power system involves essentially two coils – a transmitter and receiver coil. The transmitter coil is energized by alternating current to generate a magnetic field, which in turn induces a current in the receiver coil (Ref 1). The basics of wireless power transfer involves the inductive transmission of energy from a transmitter to a receiver via an oscillating magnetic field. -
Tesla's Coil. a Toy Or Useful Thing in the Life of Radio Engineering?
УДК 537 Ільчук Д.Р. Tesla's coil. A toy or useful thing in the life of radio engineering? Вінницький національний технічний університет Аннотація. У цій статті, подан опис такого приладу як Котушка Тесли. Наведені її характеристики, принцип роботи, історія створення та значення в сучасному житті. Також описані процеси створення власноруч та розсуди про практичність даного виробу у реальному житті. Ключові слова: Котушка індуктивності, висока напруга, Нікола Тесла, радіотехніка, електрична дуга. Abstract. This article contains a description of the device as a Tesla coil. These characteristics of the principle of history and value creation in modern life. Also describes the process of creating his own judge and practicality of this product in real life. Keywords: Inductor, high voltage, Nikola Tesla, radio, electric arc. I.Introduction Perhaps in the life of every student comes a time when it begins to be interested in their field. In some it comes in the first year, someone on last. At the beginning of the 3rd year I finally decided to solder something with their hands. The choice immediately fell on Tesla coil. But is this thing so important, whether it is only a toy, which is impossible to do anything useful? Let us know about it. II. Summary The Tesla coil is an electrical resonant transformer circuit designed by inventor Nikola Tesla around 1891 as a power supply for his "System of Electric Lighting".It is used to produce high-voltage, low-current, high frequency alternating-current electricity. Tesla experimented with a number of different configurations consisting of two, or sometimes three, coupled resonant electric circuits. -
A Novel Single-Wire Power Transfer Method for Wireless Sensor Networks
energies Article A Novel Single-Wire Power Transfer Method for Wireless Sensor Networks Yang Li, Rui Wang * , Yu-Jie Zhai , Yao Li, Xin Ni, Jingnan Ma and Jiaming Liu Tianjin Key Laboratory of Advanced Electrical Engineering and Energy Technology, Tiangong University, Tianjin 300387, China; [email protected] (Y.L.); [email protected] (Y.-J.Z.); [email protected] (Y.L.); [email protected] (X.N.); [email protected] (J.M.); [email protected] (J.L.) * Correspondence: [email protected]; Tel.: +86-152-0222-1822 Received: 8 September 2020; Accepted: 1 October 2020; Published: 5 October 2020 Abstract: Wireless sensor networks (WSNs) have broad application prospects due to having the characteristics of low power, low cost, wide distribution and self-organization. At present, most the WSNs are battery powered, but batteries must be changed frequently in this method. If the changes are not on time, the energy of sensors will be insufficient, leading to node faults or even networks interruptions. In order to solve the problem of poor power supply reliability in WSNs, a novel power supply method, the single-wire power transfer method, is utilized in this paper. This method uses only one wire to connect source and load. According to the characteristics of WSNs, a single-wire power transfer system for WSNs was designed. The characteristics of directivity and multi-loads were analyzed by simulations and experiments to verify the feasibility of this method. The results show that the total efficiency of the multi-load system can reach more than 70% and there is no directivity. Additionally, the efficiencies are higher than wireless power transfer (WPT) systems under the same conductions. -
Towner Award Nominee Books 2015 Electrical Wizard: How Nikola Tesla
Towner Award Nominee Books 2015 Electrical Wizard: How Publisher: Candlewick Press, Curriculum Connections: Electricity, magnets, physical science, Nikola Tesla Lit Up the Somerville, MA. 2013 alternating current vs. direct current, Nikola Tesla vs. Thomas Edison, inventions, patents/copyright, science fairs, World Genre/type: Biography, revolutionary ideas, biographies by Elizabeth Rusch storybook format Features: Illustrations, storybook format, index with Illustrations by Oliver specifics of Tesla’s life work, index of scientific notes & Dominguez diagrams of AC & DC currents, bibliography & further reading. As a young boy, Nikola Tesla had ideas ahead of his time. Tesla developed electricity using an alternating current that was safer and cheaper than the direct current developed by his hero-turned-rival Thomas Edison. A beautifully illustrated book in a story-telling, read-aloud format. Following are suggested resources for text-sets targeting the possible curriculum connections above. Books: Author Title/Publisher Grade Comments ISBN/Publication Levels Date Helfand, The Wright Brothers 3-8 This memorable graphic novel, tells the story of 978-9380028460 Lewis the Wright Brothers, their trials and tribulations c2011 Kalyani Navyug Media Pvt. growing up, becoming inventors, and their life after Genre/type: Ltd. their airplane invention. They struggled to patent Graphic and gain credit for their invention, just like Nikola Novel Tesla. The drawn visuals throughout the book (biography) help students quickly learn about the Wright brothers (in about 30-60 min.) and help the facts stick with you. Kamkwamba, The Boy Who Harnessed 2-6 As a young boy, William Kamkwamba’s village in 978-0803735118 William the Wind Malawi, Africa experienced a drought. -
NIKOLA TESLA July 10, 1856 – January 7, 1943
The AMA History Project Presents: Biography of NIKOLA TESLA July 10, 1856 – January 7, 1943 Written by GS (03/1976); Transcribed and reformatted by JS (09/2010) The following was published in the March 1976 issue of Model Aviation magazine, written by George V. Sosic. TESLA – The Father of RC On September 2, 1897, the Chief U.S. Examiner of Patents visited the laboratory of Nikola Tesla in New York. This visit was prompted by his belief that this inventor’s latest patent application went far beyond the realm of possibility in his claim of a practical wireless control system for vessels and vehicles from a great distance. It should be noted that the above date preceded the Wright brothers’ airplane by more than six years. Tesla gave his control system the name of Teleautomatics. It is now known as the guided-missile principle, RPV (remotely piloted vehicles) and radio control, which the model aircraft fraternity calls RC. This article was written for model aircraft builders and fliers, so the writer will refer to it as RC. Four years before Tesla shook up the Chief U.S. Examiner of Patents with his application for a patent on RC, he demonstrated a vacuum-tube radio for voice and music at the 1893 World’s Fair in Chicago, so anyone with any electronic knowledge at all can easily see that his next logical step would be to convert his frequency control and tuning knowledge to other uses such as RC and automation. Tesla showed his bench-mounted RC components in working order. -
Tesla's Polyphase System and Induction Motor
SERBIAN JOURNAL OF ELECTRICAL ENGINEERING Vol. 3, No. 2, November 2006, 121-130 Tesla’s Polyphase System and Induction Motor Petar Miljanić1 1 Introduction While new scientific knowledge is acquired by learning, observation, experiments and thinking, the inventions are mostly the fruit of the intuition of individuals and of their creative impulses. Inventors are people who use consciously or unconsciously the accumulated human knowledge and experi- ence, and find useful solutions for the humanity. Some of those inventions are epochal, like for instance the inventions of the steam and the internal combustion engine. These epochal inventions obviously include the Tesla’s system of poly- phase alternate currents and Tesla’s induction motor. It can be often heard that in some eras of civilization there appear needs and there ripen circumstances for the appearance of great inventions. The sequence of the human acquisition of knowledge of natural phenomena on which the function of the induction motor is based, and the sequence of experiments in the attempt to make the induction motor show that that opinion is not without basis. In the following lines, we will tell the story of the induction motor. That story will not be limited to Tesla’s key contribution only, but it will mention things that happened before and after Tesla’s patent applications by the end of 1887. 2 Discoveries The induction motor rotates thanks to the natural phenomenon which may be described by the following words: the moving magnetic field of one part of the motor, for instance the stator, induces currents in the conducting parts of another part of the motor, the rotor. -
Tesla's Connection to Columbia University by Dr. Kenneth L. Corum
* Tesla’s Connection to Columbia University by Kenneth L. Corum and James F. Corum, Ph.D. “The invention of the wheel was perhaps rather obvious; but the invention of an invisible wheel, made of nothing but a magnetic field, was far from obvious, and that is what we owe to Nikola Tesla.” Professor Reginald Kapp, 1956 INTRODUCTION The Electrical Engineering curriculum at Columbia University, though not the first in the US, is one of the oldest and most respected EE programs in the world. From the beginning, a conscientious effort was made to base it on a foundation of science. It has been guided by the specific philosophy stated by Professor Michael Pupin: “Professor Crocker and I maintained that there is an ‘electrical science’ which is the real soul of electrical engineering.” Arguably the most stunning and significant lecture in modern history was presented one spring evening, more than a century ago, at Columbia University. The wealth of nations turned on its merits. Weighing on the balances would be our vast cities, civilization, and quality of life. But, what was it? . .Whatever it was, its impact has been as momentous for the progress and prosperity of civilization as the invention of the wheel! . It was Tesla’s great discovery and analysis of the rotating magnetic field, and a means for the electrical distribution of energy.1 As a result of the analysis presented in this lecture, the great Falls of Niagara would soon be harnessed for the benefit of mankind and launch civilization into the “Electromagnetic Century”. The Engineering Council for Professional Development (now called ABET) has defined “Engineering” as “that profession which utilizes the resources of the planet for the benefit of mankind”. -
Introduction to Tesla Coil
INTRODUCTION TO TESLA COIL Definition A Tesla coil is a type of resonant transformer circuit invented by Nikola Tesla around 1891. It is used to produce high voltage, relatively high current, and high frequency alternating current electricity. Introduction Tesla experimented with a number of different configurations and they consist of two, or sometimes three, coupled resonant electric circuits. Tesla used these coils to conduct innovative experiments in electrical lighting, phosphorescence, x-ray generation, high frequency alternating current phenomena, electrotherapy, and the transmission of electrical energy without wires. The early Tesla coil transformer design employs a medium- to high-voltage power source, one or more high voltage capacitor(s), and a spark gap to excite a multiple- layer primary inductor with periodic bursts of high frequency current. The multiple-layer Tesla coil transformer secondary is excited by resonant inductive coupling, the primary and secondary circuits both being tuned so they resonate at the same frequency (typically, between 25 kHz and 2 MHz). The later and higher-power coil design has a single-layer primary and secondary. These Tesla coils are often used by hobbyists and at venues such as science museums to produce long sparks. Tesla coil circuits were used commercially in sparkgap radio transmitters for wireless telegraphy until the 1920s, and in electrotherapy and pseudomedical devices such as violet ray (although Tesla circuits were not the first or the only ones used in spark transmitters). Today their main use is entertainment and educational displays. Tesla coils are built by many high-voltage enthusiasts, research institutions, science museums and independent experimenters. -
Electrical Wizard: How Nikola Tesla Lit up the World
Electrical Wizard: How Nikola Tesla Lit Up the World AUTHOR: Elizabeth Rusch PUBLISHER: Candlewick Press COPYRIGHT DATE: 2013 GENRE: Picture-Book Biography LEXILE: 840 SUMMARY: Starting at a very young age, Nikola Tesla was drawn to energy and electricity. He spent much of his life trying to figure out ways to make electricity run more smoothly. Fighting his way through several obstacles and with much hard work and determination, Tesla made some amazing discoveries and inventions that would change human lives forever. BOOKTALK: We’ve all heard of Thomas Edison and his great contributions to our lives. But, have you heard of Nikola Tesla? Do you know that he made some amazing discoveries about electricity that changed people’s lives forever? Read this book to learn about Nikola Tesla’s life, his discoveries, and his rivalry with Thomas Edison. AUTHOR’S BIOGRAPHICAL SKETCH: Author’s Name: Elizabeth Rusch Author’s Website: www.elizabethrusch.com Other books written by the author: A Day with No Crayons For the Love of Music The Planet Hunter Volcano Rising Generation Fix Muddy Max Will It Blow? The Mighty Mars Rovers The Next Wave Eruption! CHALLENGING WORDS mystified (v)--confused, puzzled ricocheted (v)--bounced off at an angle conjured (v)--produced as if by magic propeller (n)--a device made of blades that turn quickly to move an airplane pummeled (v)--beat bigwig (n)--an important person generators (n)--a machine that turns mechanical energy into electrical energy YHBA Intermediate Book Committee Final Activity Sheet, Last Revised 2013 alabaster (n)--white-colored stone gawked (v)--stared baffling (adj)--confusing astounding (adj)--amazing limelight (n)--center of attention toiled (v)--worked hard throng (n)--a crowd unfathomable (adj)--impossible to understand DISCUSSION QUESTIONS: 1. -
Inventing Television: Transnational Networks of Co-Operation and Rivalry, 1870-1936
Inventing Television: Transnational Networks of Co-operation and Rivalry, 1870-1936 A thesis submitted to the University of Manchester for the degree of Doctor of Philosophy In the faculty of Life Sciences 2011 Paul Marshall Table of contents List of figures .............................................................................................................. 7 Chapter 2 .............................................................................................................. 7 Chapter 3 .............................................................................................................. 7 Chapter 4 .............................................................................................................. 8 Chapter 5 .............................................................................................................. 8 Chapter 6 .............................................................................................................. 9 List of tables ................................................................................................................ 9 Chapter 1 .............................................................................................................. 9 Chapter 2 .............................................................................................................. 9 Chapter 6 .............................................................................................................. 9 Abstract ....................................................................................................................