Nikola Tesla

Portrait by Napoleon Sarony, 1890s
Rebuilt, Tesla's house (parish hall) in Smiljan, now in Croatia, region of Lika, where he was born, and the rebuilt church, where his father served. During the Yugoslav Wars, several of the buildings were severely damaged by fire. They were restored and reopened in 2006.
Tesla's baptismal record, 28 June 1856
Tesla's father, Milutin, was an Orthodox priest in the village of Smiljan.
Tesla aged 23, c. 1879
Edison Machine Works on Goerck Street, New York. Tesla found the change from cosmopolitan Europe to working at this shop, located amongst the tenements on Manhattan's lower east side, a "painful surprise".
Drawing from, illustrating the principle of Tesla's alternating current induction motor
Tesla's AC dynamo-electric machine (AC electric generator) in an 1888
Mark Twain in Tesla's South Fifth Avenue laboratory, 1894
Tesla demonstrating wireless lighting by "electrostatic induction" during an 1891 lecture at Columbia College via two long Geissler tubes (similar to neon tubes) in his hands
X-ray Tesla took of his hand
In 1898, Tesla demonstrated a radio-controlled boat which he hoped to sell as a guided torpedo to navies around the world.
Tesla sitting in front of a spiral coil used in his wireless power experiments at his East Houston St. laboratory
Tesla's Colorado Springs laboratory
A multiple exposure picture of Tesla sitting next to his "magnifying transmitter" generating millions of volts. The 7 m long arcs were not part of the normal operation, but only produced for effect by rapidly cycling the power switch.
Tesla's Wardenclyffe plant on Long Island in 1904. From this facility, Tesla hoped to demonstrate wireless transmission of electrical energy across the Atlantic.
Tesla's bladeless turbine design
Second banquet meeting of the Institute of Radio Engineers, 23 April 1915. Tesla is seen standing in the center.
Tesla on Time magazine commemorating his 75th birthday
Newspaper representation of the thought camera Tesla described at his 1933 birthday party
Room 3327 of the Hotel New Yorker, where Tesla died
Gilded urn with Tesla's ashes, in his favorite geometric object, a sphere (Nikola Tesla Museum, Belgrade)
Tesla c. 1896
Tesla c. undefined 1885
Nikola Tesla Museum in Belgrade, Serbia
Belgrade Nikola Tesla Airport was named after the scientist in 2006.
This Nikola Tesla statue in Zagreb, Croatia was made by Ivan Meštrović in 1954. It was located at the Ruđer Bošković Institute before it was moved to the Tesla street in the city center in 2006.
Nikola Tesla Corner in New York City
Nikola Tesla statue in Niagara Falls, Ontario

Serbian-American inventor, electrical engineer, mechanical engineer, and futurist best known for his contributions to the design of the modern alternating current (AC) electricity supply system.

- Nikola Tesla

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Tesla (unit)

Derived unit of the magnetic B-field strength (also, magnetic flux density) in the International System of Units.

Four measuring devices having metric calibrations

The unit was announced during the General Conference on Weights and Measures in 1960 and is named in honour of Nikola Tesla, upon the proposal of the Slovenian electrical engineer France Avčin.

Westinghouse Electric Corporation

American manufacturing company founded in 1886 by George Westinghouse.

George Westinghouse, founder
1888 Westinghouse brochure advertising their Alternating system
Share of the Westinghouse Electric and Manufacturing Company, issued March 31, 1910
1924 book on protective relays for AC and DC electrical systems by the Company
Logo designed by Paul Rand in 1959

In addition to George Westinghouse, early engineers working for the company included Frank Conrad, Benjamin Garver Lamme, Bertha Lamme (first woman mechanical engineer in the United States), Oliver B. Shallenberger, William Stanley, Nikola Tesla, Stephen Timoshenko and Vladimir Zworykin.

Induction motor

AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding.

Three-phase totally-enclosed fan-cooled (TEFC) induction motor with end cover on the left, and without end cover to show cooling fan on the right. In TEFC motors, interior heat losses are dissipated indirectly through enclosure fins, mostly by forced air convection.
Cutaway view through stator of TEFC induction motor, showing rotor with internal air circulation vanes. Many such motors have a symmetric armature, and the frame may be reversed to place the electrical connection box (not shown) on the opposite side.
A model of Nikola Tesla's first induction motor at the Tesla Museum in Belgrade, Serbia
Squirrel-cage rotor construction, showing only the center three laminations
A three-phase power supply provides a rotating magnetic field in an induction motor
Inherent slip - unequal rotation frequency of stator field and the rotor
Typical torque curve as a function of slip, represented as "g" here
Speed-torque curves for four induction motor types: A) Single-phase, B) Polyphase cage, C) Polyphase cage deep bar, D) Polyphase double cage
Typical speed-torque curve for NEMA Design B Motor
Magnetic flux in shaded pole motor.
Typical speed-torque curves for different motor input frequencies as for example used with variable-frequency drives
Typical winding pattern for a three-phase (U, W, V), four-pole motor. Note the interleaving of the pole windings and the resulting quadrupole field.

The first AC commutator-free polyphase induction motors were independently invented by Galileo Ferraris and Nikola Tesla, a working motor model having been demonstrated by the former in 1885 and by the latter in 1887.

Gospić

Town in the mountainous and sparsely populated region of Lika, Croatia.

Kingdom of Hungary stamp cancelled in 1896
Soldiers from the 79th Infantry Regiment (K.u.K. Otočaner Infaterie-regiment Graf Jellačić), known as the “Jelačićevci” marching through Gospić in 1914.
Ante Starčević Square
Defenders memorial
Nikola Tesla Memorial Center in the nearby village of Smiljan
Annunciation of the Blessed Virgin Mary cathedral
Vila Velebita Fountain
Cardinal Alojzije Stepinac bust in city park
Kolakovac park
Coffeehouse in the town centre
Nikola Tesla statue

Scientist and inventor Nikola Tesla was born in the nearby village of Smiljan and grew up in Gospić.

Electric power industry

The electric power industry covers the generation, transmission, distribution and sale of electric power to the general public and industry.

Electric power is transmitted on overhead lines like these, and also on underground high-voltage cables
Bolsward Substation, the Netherlands
Transmission lines in Romania of which the nearest is a Phase Transposition Tower
High tension line in Montreal, Quebec, Canada
The Athlone Power Station in Cape Town, South Africa
500 kV Three-phase electric power Transmission Lines at Grand Coulee Dam; four circuits are shown; two additional circuits are obscured by trees on the right; the entire 7079 MW generation capacity of the dam is accommodated by these six circuits.
A 50 kVA pole-mounted distribution transformer

The AC power system used today developed rapidly, backed by industrialists such as George Westinghouse with Mikhail Dolivo-Dobrovolsky, Galileo Ferraris, Sebastian Ziani de Ferranti, Lucien Gaulard, John Dixon Gibbs, Carl Wilhelm Siemens, William Stanley Jr., Nikola Tesla, and others contributed to this field.

Graz University of Technology

One of five universities in Styria, Austria.

Main building
New Technology building
BMT building (Biomedical Engineering)
A further Chemistry building
Institute for Computer Graphics and Vision (Inffeldgasse 16)
Engineering Mathematics/ Geodesy building
Study Centre (Inffeldgasse 10)

Nikola Tesla, electrical and mechanical engineer, inventor (did not receive a degree and did not continue beyond the first semester of his third year, during which he stopped attending lectures)

Colorado Springs, Colorado

Home rule municipality in, and the county seat of El Paso County, Colorado, United States.

View of Colorado Springs and Pikes Peak from the eastern plains
Nikola Tesla sitting in the Colorado Springs Experimental Station with his "magnifying transmitter" generating millions of volts
Panoramic View of Downtown Colorado Springs
Map of racial distribution in Colorado Springs, 2010 U.S. Census. Each dot is 25 people:
United States Space Force – Peterson Space Force Base Building1
President Richard Nixon gives a commencement ceremony speech at the Air Force Academy in Colorado Springs, June 4, 1969
Pikes Peak, the easternmost "fourteener" in the United States
Garden of the Gods
The Saturday morning launch, overlooking Prospect Lake, in downtown Colorado Springs.
United States Olympic Committee headquarters and training facility
Ackerman Overlook near United States Air Force Academy off Interstate 25 in Colorado Springs is named for Jasper D. Ackerman (1896–1988), a banker and rancher.
Pulpit Rock, in Pikeview (North Colorado Springs)
Colorado Springs City Hall in 2008
Doolittle Hall on the campus of the United States Air Force Academy
A 20-kilometer upright bike race during the inaugural Warrior Games at the Olympic Training Center in Colorado Springs, Colo., May 13, 2010. The Warrior Games is a Paralympics-style competition where the services compete against each other in events such as sitting volleyball, wheelchair basketball, archery, shooting and swimming.
A Metro bus arrives at a stop on Colorado Avenue.
Bishkek mayor Arstanbek Nogoev presents a gift for Colorado Springs mayor Lionel Rivera to a US airman at Manas Air Base, in a ceremony aimed at reviving ties between the two sister cities.

This natural phenomenon led Nikola Tesla to select Colorado Springs as the preferred location to build his lab and study electricity.

Electrical engineering

Engineering discipline concerned with the study, design, and application of equipment, devices, and systems which use electricity, electronics, and electromagnetism.

The discoveries of Michael Faraday formed the foundation of electric motor technology.
Guglielmo Marconi, known for his pioneering work on long-distance radio transmission
A replica of the first working transistor, a point-contact transistor
Metal–oxide–semiconductor field-effect transistor (MOSFET), the basic building block of modern electronics
The top of a power pole
Satellite dishes are a crucial component in the analysis of satellite information.
Control systems play a critical role in spaceflight.
Electronic components
Microprocessor
A Bayer filter on a CCD requires signal processing to get a red, green, and blue value at each pixel.
Flight instruments provide pilots with the tools to control aircraft analytically.
Supercomputers are used in fields as diverse as computational biology and geographic information systems.
The Bird VIP Infant ventilator
Oscilloscope
An example circuit diagram, which is useful in circuit design and troubleshooting.
Belgian electrical engineers inspecting the rotor of a 40,000 kilowatt turbine of the General Electric Company in New York City
The IEEE corporate office is on the 17th floor of 3 Park Avenue in New York City
Satellite communications is typical of what electrical engineers work on.
The Shadow robot hand system
A laser bouncing down an acrylic rod, illustrating the total internal reflection of light in a multi-mode optical fiber.
Radome at the Misawa Air Base Misawa Security Operations Center, Misawa, Japan

Alternating current, with its ability to transmit power more efficiently over long distances via the use of transformers, developed rapidly in the 1880s and 1890s with transformer designs by Károly Zipernowsky, Ottó Bláthy and Miksa Déri (later called ZBD transformers), Lucien Gaulard, John Dixon Gibbs and William Stanley, Jr. Practical AC motor designs including induction motors were independently invented by Galileo Ferraris and Nikola Tesla and further developed into a practical three-phase form by Mikhail Dolivo-Dobrovolsky and Charles Eugene Lancelot Brown.

Graz

Capital city of the Austrian state of Styria and second-largest city in Austria after Vienna.

Aerial photograph showing the historic centre of Graz
Mur River and admiral Tegetthoff bridge in centre of Graz
The 17 districts of Graz
Schlossberg hill with clock tower
Eggenberg Palace
Municipal election results since 1945.
Kunsthaus
Tramway Museum
City overview from Schlossberg with Kunsthaus in the middle
Herz-Jesu-Kirche
Tram at Jakominiplatz
Schlossberg hill with clock tower

During that time, Nikola Tesla studied electrical engineering at the Polytechnic in 1875.

Wardenclyffe Tower

1904 image of Wardenclyffe Tower
Tesla's Magnifying "Apparatus for transmitting electrical energy" covered the basic function of the device used at Wardenclyffe.
Tesla with his "magnifying transmitter", Colorado Springs, 1899, in photo taken for his 1900 Century Magazine article. This photo was a double exposure; Tesla was not actually in the room when the device was operating.
Artistic representation of the station completed, including the tower structure.
Tesla's Wardenclyffe plant on Long Island circa 1902 in partial stage of completion. Work on the 55 ft cupola had not yet begun. There is a coal car parked next to the building.
Demolition of the Wardenclyffe tower started in July 1917
Stanford White Building at the corner of Tesla Street and NY 25A (2009)

Wardenclyffe Tower (1901–1917), also known as the Tesla Tower, was an early experimental wireless transmission station designed and built by Nikola Tesla on Long Island in 1901–1902, located in the village of Shoreham, New York.