user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: What was invented by Nikola Tesla and OttÃ³ BlÃ¡thy? 
Knowledge Triplets: Nikola Tesla, people.person.profession, Scientist
Nikola Tesla, people.person.profession, Inventor
thomas alva edison assistant was nikola tesla, base.kwebbase.kwconnection.subject, Thomas Edison
Alternating current, law.invention.inventor, Nikola Tesla
Tesla Roadster, symbols.namesake.named_after, Nikola Tesla
nikola tesla worked with andrew carnegie, base.kwebbase.kwconnection.subject, Nikola Tesla
A Machine to End War, book.written_work.author, Nikola Tesla
Nikola Tesla, freebase.valuenotation.has_no_value, Children
nikola tesla rival was elmer ambrose sperry, base.kwebbase.kwconnection.subject, Nikola Tesla
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, He was a friend of Twain.
Nikola Tesla, symbols.name_source.namesakes, Tesla
The patent wasn't returned to Tesla until 1943 (a month after his death)., base.kwebbase.kwsentence.next_sentence, Before his death Tesla pioneered wireless radio technology, robotics, and 'wireless energy.'.
Nikola Tesla, people.person.sibling_s, m.0n9g0h6
nikola tesla worked with edward goodrich acheson, base.kwebbase.kwconnection.subject, Nikola Tesla
Nikola Tesla, book.author.works_written, The Inventions, Researches, and Writings of Nikola Tesla
The New Art of Projecting Concentrated Non-dispersive Energy Through Natural Media, book.written_work.author, Nikola Tesla
Nikola Tesla, base.engineering.engineering_person.engineering_disciplines, Electric Power Distribution
The Fantastic Inventions of Nikola Tesla, book.written_work.original_language, English Language
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, In short order, AC power became the undisputed standard in long-distance power transmission.
Nikola Tesla, common.topic.notable_types, Academic
Nikola Tesla, law.inventor.inventions, Tesla coil
Nikola Tesla, freebase.valuenotation.is_reviewed, Parents
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, The next great feat of Tesla's life took place with the Niagara Falls Power Project.
Nikola Tesla, book.author.book_editions_published, My Inventions: The Autobiography of Nikola TeslaMy Inventions: The Autobiography of Nikola Tesla
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, In 1881 he found a position as a telephone engineer at a telephone company in Budapest.
Nikola Tesla, symbols.name_source.namesakes, Tesla Boy
nikola tesla met joseph tykociner, base.kwebbase.kwconnection.sentence, He met Tykociner.
The Secret of Nikola Tesla, film.film.personal_appearances, m.0gcx82_
Tesla's New Device Like Bolts of Thor, book.written_work.author, Nikola Tesla
Electrical Oscillators, book.written_work.author, Nikola Tesla
Nikola Tesla, base.argumentmaps.innovator.original_ideas, Induction motor
Nikola Tesla, book.author.works_written, My Inventions: The Autobiography of Nikola Tesla
Thomas Commerford Martin, book.author.book_editions_published, Inventions, Researches and Writings of Nikola Tesla
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, The patent wasn't returned to Tesla until 1943 (a month after his death).
Nikola Tesla, people.person.parents, Milutin Tesla
Nikola Tesla, book.author.works_written, The Complete Patents of Nikola Tesla
Nikola Tesla, people.person.sibling_s, m.0n9g0gx
Nikola Tesla, education.academic.research_areas, Electricity
Three-phase electric power, law.invention.inventor, Nikola Tesla
My Inventions: The Autobiography of Nikola Tesla, book.book.editions, My Inventions: The Autobiography of Nikola TeslaMy Inventions: The Autobiography of Nikola Tesla
Wizard: the Life and Times of Nikola Tesla, book.written_work.subjects, Nikola Tesla
Empires of Light: Edison, Tesla, Westinghouse, and the Race to Electrify the World, book.written_work.subjects, Nikola Tesla
Nikola Tesla, people.person.parents, Đuka Tesla
Nikola Tesla, book.author.book_editions_published, Inventions, Researches and Writings of Nikola Tesla
Nikola Tesla's birth house and statue in Smiljan, common.image.appears_in_topic_gallery, Nikola Tesla
The Complete Patents of Nikola Tesla, common.topic.notable_for, g.125ctmrs2
nikola tesla worked with edward goodrich acheson, base.kwebbase.kwconnection.sentence, He worked with Carnegie and Acheson.
m.0gghv96, film.performance.film, The Secret of Nikola Tesla
Nikola Tesla, symbols.name_source.namesakes, Wardenclyffe Tower
The Essential Tesla, book.written_work.author, Nikola Tesla
The Inventions, Researches, and Writings of Nikola Tesla, common.topic.notable_for, g.1255w5pyz
He soon found himself working for Edison, but their two contrasting personalities quickly found Tesla working for Westinghouse., base.kwebbase.kwsentence.contains_connections, nikola tesla worked for george westinghouse
Nikola Tesla, book.author.works_written, Wonders of the Future
Nikola Tesla, book.author.works_written, A Machine to End War
My Inventions: The Autobiography of Nikola TeslaMy Inventions: The Autobiography of Nikola Tesla, common.topic.notable_for, g.1255w0h76
Nikola Tesla, book.author.works_written, The Tesla Papers
The Secret of Nikola Tesla, film.film.personal_appearances, m.0cs1g3p
My Inventions: The Autobiography of Nikola Tesla, freebase.valuenotation.has_value, Date written
The Secret of Nikola Tesla, film.film.starring, m.0gghv9v
World System of Wireless Transmission of Energy, book.written_work.author, Nikola Tesla
The Fantastic Inventions of Nikola Tesla, common.topic.notable_for, g.125b8yv3s
Nikola Tesla, common.topic.article, m.05d27
Nikola Tesla, book.book_subject.works, Empires of Light: Edison, Tesla, Westinghouse, and the Race to Electrify the World
Even before this point, Tesla had dreamed of harnessing the power of the Falls., base.kwebbase.kwsentence.kwtopic, Nikola Tesla
Nikola Tesla, people.person.nationality, Austrian Empire
nikola tesla worked for george westinghouse, base.kwebbase.kwconnection.other, George Westinghouse
The Secret of Nikola Tesla, common.topic.article, m.0c01pl8
Nikola Tesla, common.topic.image, N
Nikola Tesla, law.inventor.inventions, Remote control
Nikola Tesla, base.engineering.engineering_person.engineering_disciplines, Applied Physics
Nikola Tesla's birth house and statue in Smiljan, common.image.size, m.0290xbz
Đuka Tesla, people.person.children, Nikola Tesla
nikola tesla worked for george westinghouse, base.kwebbase.kwconnection.subject, Nikola Tesla
Nikola Tesla, book.author.works_written, Patenti
Nikola Tesla, symbols.name_source.namesakes, Tesla coil
Nikola Tesla, base.kwebbase.kwtopic.connections_from, nikola tesla worked with andrew carnegie
The Secret of Nikola Tesla, film.film.genre, Drama
Nikola Tesla, symbols.name_source.namesakes, Belgrade Nikola Tesla Airport
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, He was temporarily financed by JP Morgan.
Nikola Tesla Museum, common.topic.image, Nikola Tesla Museum
His research next produced the Tesla coil, patented in 1891., base.kwebbase.kwsentence.kwtopic, Nikola Tesla
m.0gghv9c, film.performance.film, The Secret of Nikola Tesla
Nikola Tesla, book.author.works_written, Lectures, Patents, Articles, 1856-1943
My Inventions: The Autobiography of Nikola TeslaMy Inventions: The Autobiography of Nikola Tesla, book.book_edition.book, My Inventions: The Autobiography of Nikola Tesla
nikola tesla worked with andrew carnegie, base.kwebbase.kwconnection.relation, worked with
American Institute of Electrical Engineers, organization.organization.founders, Nikola Tesla
Over the next few years Tesla refined his high-frequency electricity technology., base.kwebbase.kwsentence.kwtopic, Nikola Tesla
Nikola Tesla, people.person.sibling_s, m.0n9g0gl
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, An innovative genius whose contributions to technology have only recently been fully appreciated.
Nikola Tesla, influence.influence_node.influenced_by, Ernst Mach
m.0gghv9p, film.performance.film, The Secret of Nikola Tesla
My Inventions: The Autobiography of Nikola Tesla, book.book.genre, Autobiography
george westinghouse employed nikola tesla, base.kwebbase.kwconnection.other, Nikola Tesla
Some Personal Recollections, book.written_work.author, Nikola Tesla
Nikola Tesla, base.kwebbase.kwtopic.connections_to, joseph tykociner met nikola tesla
Nikola Tesla, book.author.works_written, Moji pronalasci =
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, He met Tykociner.
Nikola Tesla, influence.influence_node.influenced_by, Voltaire
Nikola Tesla, people.person.education, m.0bfsj0d
He was temporarily financed by JP Morgan., base.kwebbase.kwsentence.kwtopic, Nikola Tesla
Nikola Tesla, freebase.valuenotation.is_reviewed, Country of nationality
m.0gghvbf, film.film_cut.film, The Secret of Nikola Tesla
Nikola Tesla, book.author.works_written, The Wireless Tesla
The Secret of Nikola Tesla, common.topic.notable_types, Film
Nikola Tesla, book.author.works_written, On Electricity
Collected Articles and Lectures, book.written_work.author, Nikola Tesla
Tesla ili prilagodjavanje andjela, film.film.subjects, Nikola Tesla
Nikola Tesla Sees a Wireless Vision, book.written_work.original_language, English Language
Nikola Tesla, freebase.valuenotation.is_reviewed, Date of death
nikola tesla met joseph tykociner, base.kwebbase.kwconnection.other, Joseph Tykociński-Tykociner
Nikola Tesla, base.ontologies.ontology_instance.equivalent_instances, m.07nfff3
The Secret of Nikola Tesla, film.film.starring, m.0gghv9p
Nikola Tesla, base.kwebbase.kwtopic.connections_from, nikola tesla met joseph tykociner
Nikola Tesla, book.author.works_written, Famous Scientific Illusions
Nikola Tesla, book.author.works_written, 'Death Ray' for Planes
Nikola Tesla, law.inventor.inventions, Wireless telegraphy
nikola tesla a pal of mark twain, base.kwebbase.kwconnection.other, Mark Twain
Selected Patent Wrappers from the National Archives, book.written_work.author, Nikola Tesla
An innovative genius whose contributions to technology have only recently been fully appreciated., base.kwebbase.kwsentence.kwtopic, Nikola Tesla
Nikola Tesla, book.author.works_written, The Wonder World To Be Created By Electricity
Nikola Tesla, book.author.works_written, Selected Patent Wrappers from the National Archives
The Secret of Nikola Tesla, film.film.starring, m.0gghv91
He soon found himself working for Edison, but their two contrasting personalities quickly found Tesla working for Westinghouse., base.kwebbase.kwsentence.kwtopic, Nikola Tesla
Wireless telegraphy, law.invention.inventor, Nikola Tesla
Nikola Tesla, symbols.name_source.namesakes, Tesla Roadster
My Inventions: The Autobiography of Nikola TeslaMy Inventions: The Autobiography of Nikola Tesla, book.book_edition.author_editor, Nikola Tesla
Nikola Tesla Sees a Wireless Vision, common.topic.notable_types, Written Work
The Secret of Nikola Tesla, film.film.language, Serbian language
The Secret of Nikola Tesla, film.film.country, Yugoslavia
Nikola Tesla, common.topic.notable_for, g.125850ztp
m.0gghv9v, film.performance.film, The Secret of Nikola Tesla
Nikola Tesla, book.author.works_written, Colorado Springs Notes, 1899–1900
Nikola Tesla, base.engineering.engineering_person.engineering_disciplines, Electricity generation
The Secret of Nikola Tesla, film.film.directed_by, Krsto Papić
Induction motor, base.argumentmaps.original_idea.innovator, Nikola Tesla
The Tesla Papers, book.written_work.author, Nikola Tesla
Nikola Tesla, freebase.valuenotation.is_reviewed, Place of birth
Nikola Tesla, common.topic.webpage, m.09ys_0t
Nikola Tesla, base.engineering.engineering_person.engineering_disciplines, Theoretical physics
The Secret of Nikola Tesla, film.film.costume_design_by, Jasna Novak
Nikola Tesla, base.engineering.engineering_person.engineering_disciplines, Electromagnetic weapons
His research next produced the Tesla coil, patented in 1891., base.kwebbase.kwsentence.dates, m.0c1164d
thomas alva edison assistant was nikola tesla, base.kwebbase.kwconnection.other, Nikola Tesla
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, Even before this point, Tesla had dreamed of harnessing the power of the Falls.
Nikola Tesla, base.kwebbase.kwtopic.connections_from, nikola tesla worked for thomas alva edison
Nikola Tesla, freebase.valuenotation.is_reviewed, Place of death
Patenti, book.written_work.author, Nikola Tesla
Nikola Tesla, book.book_subject.works, The Inventions, Researches, and Writings of Nikola Tesla
Wonders of the Future, book.written_work.author, Nikola Tesla
nikola tesla a pal of mark twain, base.kwebbase.kwconnection.relation, a pal of
nikola tesla a pal of mark twain, base.kwebbase.kwconnection.sentence, He was a friend of Twain.
The Wonder World To Be Created By Electricity, book.written_work.author, Nikola Tesla
Nikola Tesla, people.person.places_lived, m.0hnhtsy
Nikola Tesla, book.author.works_written, The Soviet Sacrifice of Spain
The Secret of Nikola Tesla, film.film.subjects, Nikola Tesla
nikola tesla worked for thomas alva edison, base.kwebbase.kwconnection.other, Thomas Edison
Nikola Tesla Sees a Wireless Vision, freebase.valuenotation.has_value, Date written
The Wireless Tesla, book.written_work.author, Nikola Tesla
Nikola Tesla, book.author.works_written, AIDS the Last Great Plague
Remote control, law.invention.inventor, Nikola Tesla
Nikola Tesla, common.topic.image, Nikola Tesla's birth house and statue in Smiljan
Nikola Tesla, law.inventor.inventions, Alternating current
Nikola Tesla, book.author.works_written, Pioneer Radio Engineer Gives Views On Power
On Electricity, book.written_work.author, Nikola Tesla
Inventions, Researches and Writings of Nikola Tesla, book.book_edition.author_editor, Nikola Tesla
Nikola Tesla, freebase.valuenotation.is_reviewed, Weight
Tesla said, book.written_work.author, Nikola Tesla
The Secret of Nikola Tesla, film.film.starring, m.0gghv9_
The Secret of Nikola Tesla, film.film.personal_appearances, m.0csbj0j
Before his death Tesla pioneered wireless radio technology, robotics, and 'wireless energy.'., base.kwebbase.kwsentence.kwtopic, Nikola Tesla
Very Truly Yours, Nikola Tesla, book.written_work.author, Nikola Tesla
Inventions, Researches and Writings of Nikola Tesla, book.book_edition.book, The Inventions, Researches, and Writings of Nikola Tesla
m.0h5fn58, film.performance.film, The Secret of Nikola Tesla
Nikola Tesla, people.person.nationality, United States of America
Nikola Tesla, book.author.works_written, Nikola Tesla Sees a Wireless Vision
Nikola Tesla Sees a Wireless Vision, common.topic.notable_for, g.1yl5j5yfq
Nikola Tesla, book.book_subject.works, Wizard: the Life and Times of Nikola Tesla
Nikola Tesla, people.person.profession, Electrical engineer
My Inventions: The Autobiography of Nikola Tesla, book.written_work.author, Nikola Tesla
Nikola Tesla, book.author.works_written, The Disturbing Influence of Solar Radiation On the Wireless Transmission of Energy
The Secret of Nikola Tesla, film.film.music, Andjelko Klobucar
Thomas Commerford Martin, book.author.works_written, The Inventions, Researches, and Writings of Nikola Tesla
Famous Scientific Illusions, book.written_work.author, Nikola Tesla
The True Wireless, book.written_work.author, Nikola Tesla
Nikola Tesla, book.author.works_written, The Eternal Source of Energy of the Universe, Origin and Intensity of Cosmic Rays
Nikola Tesla, freebase.valuenotation.is_reviewed, Children
Nikola Tesla Museum, common.topic.article, m.0cxk5y
m.03ll4cb, common.webpage.topic, Nikola Tesla Museum
Nikola Tesla, people.person.profession, Futurist
Inventions, Researches and Writings of Nikola Tesla, book.book_edition.binding, Paperback
The Complete Patents of Nikola Tesla, common.topic.notable_types, Book
My Inventions: The Autobiography of Nikola Tesla, book.written_work.editor, Ben Johnston
nikola tesla worked with edward goodrich acheson, base.kwebbase.kwconnection.relation, worked with
Nikola Tesla, base.kwebbase.kwtopic.connections_to, thomas alva edison assistant was nikola tesla
nikola tesla worked for thomas alva edison, base.kwebbase.kwconnection.relation, worked for
Tesla Boy, symbols.namesake.named_after, Nikola Tesla
The Secret of Nikola Tesla, film.film.language, Serbo-Croatian Language
The next great feat of Tesla's life took place with the Niagara Falls Power Project., base.kwebbase.kwsentence.kwtopic, Nikola Tesla
The Inventions, Researches, and Writings of Nikola Tesla, book.book.editions, The inventions, researches and writing of Nikola Tesla
The Complete Patents of Nikola Tesla, book.written_work.author, Nikola Tesla
Ottó Bláthy, law.inventor.inventions, Alternating current
He soon found himself working for Edison, but their two contrasting personalities quickly found Tesla working for Westinghouse., base.kwebbase.kwsentence.contains_connections, nikola tesla worked for thomas alva edison
My Inventions: The Autobiography of Nikola Tesla, common.topic.notable_types, Book
N, common.image.appears_in_topic_gallery, Nikola Tesla
Nikola Tesla, book.author.works_written, Light and other high frequency phenomena
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, Over the next few years Tesla refined his high-frequency electricity technology.
nikola tesla worked for thomas alva edison, base.kwebbase.kwconnection.subject, Nikola Tesla
The Inventions, Researches, and Writings of Nikola Tesla, book.written_work.subjects, Nikola Tesla
Lectures, Patents, Articles, 1856-1943, book.written_work.author, Nikola Tesla
m.0b47dmz, common.webpage.topic, Nikola Tesla
Nikola Tesla, book.author.works_written, Tesla Predicts Ships Powered by Shore Beam
My Inventions: The Autobiography of Nikola Tesla, common.topic.article, m.058ckl
Nikola Tesla, common.topic.notable_for, g.125b468f8
The Inventions, Researches, and Writings of Nikola Tesla, common.topic.notable_types, Book
Nikola Tesla, people.person.place_of_birth, Smiljan
Nikola Tesla, book.author.works_written, World System of Wireless Transmission of Energy
Nikola Tesla, symbols.name_source.namesakes, IEEE Nikola Tesla Award
Nikola Tesla Sees a Wireless Vision, book.written_work.author, Nikola Tesla
Nikola Tesla, film.film_subject.films, The Secret of Nikola Tesla
Nikola Tesla, book.author.works_written, Aerial Defense 'Death-Beam' Offered to U. S. By Tesla
The Secret of Nikola Tesla, common.topic.notable_for, g.1256d9fq7
Tesla, symbols.namesake.named_after, Nikola Tesla
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, Before his death Tesla pioneered wireless radio technology, robotics, and 'wireless energy.'.
The Eternal Source of Energy of the Universe, Origin and Intensity of Cosmic Rays, book.written_work.author, Nikola Tesla
joseph tykociner met nikola tesla, base.kwebbase.kwconnection.other, Nikola Tesla
Lectures, Patents, Articles, 1856-1943, book.book.editions, Nikola Tesla: lectures, patents, articles
Tesla coil, symbols.namesake.named_after, Nikola Tesla
The Inventions, Researches, and Writings of Nikola Tesla, common.topic.article, m.02rd40r
nikola tesla a pal of mark twain, base.kwebbase.kwconnection.subject, Nikola Tesla
The Secret of Nikola Tesla, film.film.starring, m.0gghv96
The Secret of Nikola Tesla, film.film.genre, Documentary film
The Fantastic Inventions of Nikola Tesla, common.topic.notable_types, Book
Nikola Tesla, book.author.works_written, Electric Drive for Battle Ships
Nikola Tesla, book.author.works_written, Collected Articles and Lectures
Nikola Tesla, book.author.works_written, Tesla said
IEEE Nikola Tesla Award, symbols.namesake.named_after, Nikola Tesla
Nikola Tesla, book.author.works_written, Story of Youth Told by Age
Inventions, Researches and Writings of Nikola Tesla, book.book_edition.isbn, 9781566198127
The Inventions, Researches, and Writings of Nikola Tesla, book.book.editions, Inventions, Researches and Writings of Nikola Tesla
Nikola Tesla, book.author.works_written, The Essential Tesla
Tesla Predicts Ships Powered by Shore Beam, book.written_work.author, Nikola Tesla
Nikola Tesla, common.topic.notable_for, g.1257v73s6
Wizard: the Life and Times of Nikola Tesla, book.book.editions, Wizard: The Life and Times of Nikola Tesla: Biography of a Genius
nikola tesla worked for george westinghouse, base.kwebbase.kwconnection.sentence, He soon found himself working for Edison, but their two contrasting personalities quickly found Tesla working for Westinghouse.
Very Truly Yours, Nikola Tesla, common.topic.notable_types, Book
The Complete Patents of Nikola Tesla, book.written_work.original_language, English Language
Nikola Tesla, people.person.nationality, Austria-Hungary
The Secret of Nikola Tesla, film.film.genre, Biographical film
Milutin Tesla, people.person.children, Nikola Tesla
Nikola Tesla, people.person.places_lived, m.0hgv0vq
Nikola Tesla, symbols.name_source.namesakes, Nikola Tesla Museum
nikola tesla worked with edward goodrich acheson, base.kwebbase.kwconnection.other, Edward Goodrich Acheson
nikola tesla worked for george westinghouse, base.kwebbase.kwconnection.relation, worked for
Nikola Tesla Museum, symbols.namesake.named_after, Nikola Tesla
Nikola Tesla, common.topic.webpage, m.0b47dmz
The Fantastic Inventions of Nikola Tesla, common.topic.article, m.02rd3vx
The Secret of Nikola Tesla, film.film.starring, m.0gghv9c
Inventions, Researches and Writings of Nikola Tesla, common.topic.notable_for, g.125bcd1gk
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, He worked with Carnegie and Acheson.
My Inventions: The Autobiography of Nikola Tesla, book.written_work.original_language, English Language
nikola tesla met joseph tykociner, base.kwebbase.kwconnection.subject, Nikola Tesla
Nikola Tesla, book.author.works_written, How Cosmic Forces Shape Our Destinies
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, His rival was Sperry.
Tesla Motors, symbols.namesake.named_after, Nikola Tesla
Nikola Tesla Museum, common.topic.webpage, m.03ll4cb
Nikola Tesla, people.person.places_lived, m.0hhzz4h
Nikola Tesla, base.kwebbase.kwtopic.connections_from, nikola tesla worked with edward goodrich acheson
Tesla coil, law.invention.inventor, Nikola Tesla
The Illustrated Tesla, book.written_work.author, Nikola Tesla
In 1881 he found a position as a telephone engineer at a telephone company in Budapest., base.kwebbase.kwsentence.kwtopic, Nikola Tesla
Transmission of power, book.written_work.author, Nikola Tesla
Nikola Tesla, book.author.works_written, Tesla on Power Development and Future Marvels
Colorado Springs Notes, 1899–1900, common.topic.image, Nikola Tesla's experimental station outside of Colorado Springs.
The Inventions, Researches, and Writings of Nikola Tesla, book.written_work.author, Thomas Commerford Martin
Tesla turbine, symbols.namesake.named_after, Nikola Tesla
Nikola Tesla, book.author.works_written, Some Personal Recollections
The Secret of Nikola Tesla, film.film.starring, m.0gghv9j
Nikola Tesla, people.person.sibling_s, m.0n9g0g8
The Secret of Nikola Tesla, film.film.runtime, m.0cs1h5c
Neon lamp, law.invention.inventor, Nikola Tesla
My Inventions: The Autobiography of Nikola TeslaMy Inventions: The Autobiography of Nikola Tesla, common.topic.notable_types, Book Edition
Nikola Tesla, book.author.works_written, The New Art of Projecting Concentrated Non-dispersive Energy Through Natural Media
Tesla on Power Development and Future Marvels, book.written_work.author, Nikola Tesla
Nikola Tesla, book.author.works_written, Transmission of power
Nikola Tesla, people.person.profession, Mechanical Engineer
Nikola Tesla, influence.influence_node.influenced_by, Johann Wolfgang von Goethe
The patent wasn't returned to Tesla until 1943 (a month after his death)., base.kwebbase.kwsentence.kwtopic, Nikola Tesla
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, His research next produced the Tesla coil, patented in 1891.
Nikola Tesla, organization.organization_founder.organizations_founded, American Institute of Electrical Engineers
Nikola Tesla, book.author.works_written, Our Future Motive Power
The Fantastic Inventions of Nikola Tesla, book.written_work.author, Nikola Tesla
Aerial Defense 'Death-Beam' Offered to U. S. By Tesla, book.written_work.author, Nikola Tesla
Before his death Tesla pioneered wireless radio technology, robotics, and 'wireless energy.'., base.kwebbase.kwsentence.previous_sentence, The patent wasn't returned to Tesla until 1943 (a month after his death).
The Complete Patents of Nikola Tesla, common.topic.article, m.02rd3_c
Nikola Tesla, book.author.works_written, The Problem of Increasing Human Energy
m.0gghv91, film.performance.film, The Secret of Nikola Tesla
Nikola Tesla, book.author.works_written, Electrical Oscillators
The Secret of Nikola Tesla, film.film.country, Croatia
My Inventions: The Autobiography of Nikola TeslaMy Inventions: The Autobiography of Nikola Tesla, common.topic.notable_for, g.125cyg33m
Induction motor, law.invention.inventor, Nikola Tesla
Nikola Tesla, freebase.valuenotation.is_reviewed, Gender
My Inventions: The Autobiography of Nikola Tesla, common.topic.notable_for, g.125fht7_m
Nikola Tesla, law.inventor.inventions, Three-phase electric power
Nikola Tesla, book.author.works_written, Proposing the 'Death Ray' for Defense
m.0gghv9j, film.performance.film, The Secret of Nikola Tesla
nikola tesla worked for thomas alva edison, base.kwebbase.kwconnection.sentence, He soon found himself working for Edison, but their two contrasting personalities quickly found Tesla working for Westinghouse.
The Inventions, Researches, and Writings of Nikola Tesla, book.written_work.original_language, English Language
Nikola Tesla, people.person.places_lived, m.0chbd83
Nikola Tesla, book.author.works_written, The Fantastic Inventions of Nikola Tesla
The Secret of Nikola Tesla, film.film.starring, m.0h5fn58
nikola tesla worked with andrew carnegie, base.kwebbase.kwconnection.other, Andrew Carnegie
Nikola Tesla, law.inventor.inventions, Alternating current
m.0gghv9_, film.performance.film, The Secret of Nikola Tesla
Nikola Tesla, law.inventor.inventions, Induction motor
Nikola Tesla, book.author.works_written, The Illustrated Tesla
Nikola Tesla, law.inventor.inventions, Neon lamp
Nikola Tesla, freebase.valuenotation.is_reviewed, Date of birth
Nikola Tesla, base.engineering.engineering_person.engineering_disciplines, Electricity
nikola tesla worked with andrew carnegie, base.kwebbase.kwconnection.sentence, He worked with Carnegie and Acheson.
Nikola Tesla, symbols.name_source.namesakes, Tesla Motors
Inventions, Researches and Writings of Nikola Tesla, common.topic.notable_types, Book Edition
Nikola Tesla, book.author.works_written, Correspondence with relatives
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Nikola Tesla, freebase.valuenotation.is_reviewed, Height
Very Truly Yours, Nikola Tesla, common.topic.notable_for, g.1258w5t1_
Nikola Tesla, book.author.works_written, Tesla's New Device Like Bolts of Thor
Nikola Tesla, people.person.profession, Physicist
The Inventions, Researches, and Writings of Nikola Tesla, book.written_work.subjects, 20th century
The Inventions, Researches, and Writings of Nikola Tesla, book.written_work.author, Nikola Tesla
The Secret of Nikola Tesla, film.film.runtime, m.0gghvbf
Nikola Tesla, film.film_subject.films, Tesla ili prilagodjavanje andjela
My Inventions: The Autobiography of Nikola Tesla, book.translated_work.translations, Mina uppfinningar
Nikola Tesla, base.kwebbase.kwtopic.has_sentences, He soon found himself working for Edison, but their two contrasting personalities quickly found Tesla working for Westinghouse.
Nikola Tesla, base.kwebbase.kwtopic.connections_from, nikola tesla a pal of mark twain
m.09ys_0t, common.webpage.topic, Nikola Tesla
Nikola Tesla, people.person.education, m.0n7w6dz
My Inventions: The Autobiography of Nikola TeslaMy Inventions: The Autobiography of Nikola Tesla, book.book_edition.isbn, 9780910077002
Nikola Tesla, symbols.name_source.namesakes, Tesla turbine
Nikola Tesla, freebase.valuenotation.is_reviewed, Education
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Nikola Tesla, people.person.places_lived, m.04hddqs
Nikola Tesla, book.author.works_written, Very Truly Yours, Nikola Tesla
m.0cs1h5c, film.film_cut.film, The Secret of Nikola Tesla
Nikola Tesla, book.author.works_written, The True Wireless
Colorado Springs Notes, 1899–1900, book.written_work.author, Nikola Tesla

Answer: Alternating current