Екатерина Вавилова – All sciences. №1, 2023. International Scientific Journal (страница 4)
The book by writer Tim Schwartz mentions that in other hotels where Tesla rented rooms, his personal belongings also remained. Some of them are lost, more than 12 boxes of things were sold to pay Tesla's bills. Tim Schwartz also claims that in 1976, four nondescript boxes of papers were auctioned by a certain Michael P. Bornes, a bookseller from Manhattan. Dale Alfrey bought them for $25, not knowing what kind of papers they were. According to the author of the book, it later turned out that these were Nikola Tesla's laboratory journals and papers, which described hostile alien creatures capable of controlling the human brain.
Many readers have questioned Tim Schwartz's claims, perceiving the book as an attempt to create a sensation. It is hardly possible to talk about Tesla's direct participation in the hypothetical event of the "Philodelfi experiment" due to the discrepancy between the dates of Tesla's life and the time of the alleged experiment, since Tesla himself died before it began – on January 7, 1943, while it is assumed that the experiment was conducted only on October 28, 1943.
In 1931, Nikola Tesla allegedly demonstrated a working prototype of an electric car moving without any traditional current sources. There is no material evidence of the existence of this electric car.
The American agency DARPA in 1958 allegedly tried to create Tesla's legendary "death rays" during the Seesaw project, which was conducted at the Livermore National Laboratory. In 1982, the project was interrupted due to a number of failures and budget overruns.
At the end of the XX – beginning of the XXI century, a hypothesis appeared about the connection of Nikola Tesla with the Tunguska meteorite. According to this hypothesis, on the day of the observation of the Tunguska phenomenon (June 30, 1908), Nikola Tesla conducted an experiment on the transmission of energy «through the air». A few months before the explosion, Tesla claimed that he would be able to light the way to the North Pole of the expedition of the famous traveler Robert Peary. In addition, there are records in the journal of the Library of Congress that he requested maps of «the least populated parts of Siberia.» His experiments on the creation of standing waves, when, as it is claimed, a powerful electric pulse was concentrated tens of thousands of kilometers away in the Indian Ocean, quite fit into this «hypothesis». If Tesla managed to pump an impulse with the energy of the so-called «ether» (a hypothetical medium, to which, according to scientific ideas of the past centuries, the role of a carrier of electromagnetic interactions was attributed) and the resonance effect to «rock» the wave, then, according to this assumption, a discharge with a power comparable to a nuclear explosion should have occurred.
Tesla with a burning gas discharge lamp demonstrates wireless transmission of electricity
In total, Tesla has more than 700 inventions and patents, some of which are the most important historical milestones of modern electricity. Tesla probably invented radio before Marconi and Popov, and also worked with X-rays before their official discovery by Wilhelm Roentgen.
Working for Westinghouse, he patented the use of multiphase alternating current systems. Before the invention of the asynchronous (induction) motor, alternating current was not widely used, since it could not be used in pre-existing electric motors. Since 1889, Nikola Tesla began to study high-frequency currents and high voltages. He invented the first samples of electromechanical HF generators (including inductor type) and a high—frequency transformer (Tesla transformer, 1891), thereby creating prerequisites for the development of a new branch of electrical engineering – HF technology.
In the course of research on high-frequency currents, Tesla also paid attention to safety issues. Experimenting on his body, he studied the effect of alternating currents of various frequencies and strengths on the human body. Many of the rules first developed by Tesla have become part of the modern fundamentals of safety when working with RF currents. He found that at a current frequency of over 700 Hz, an electric current flows over the surface of the body without harming the tissues of the body. Electrical devices developed by Tesla for medical research have become widespread in the world.
Experiments with high-frequency high-voltage currents led the inventor to discover a method for cleaning contaminated surfaces. A similar effect of currents on the skin showed that in this way it is possible to remove small rashes, clean pores and kill germs. This method is used in modern electrotherapy.
On October 12, 1887, Tesla gave a rigorous scientific description of the essence of the phenomenon of a rotating magnetic field. On May 1, 1888, Tesla received his main patents for the invention of multiphase electric machines (including an asynchronous electric motor) and a system for transmitting electricity by means of a multiphase alternating current. Using a two-phase system, which he considered the most economical, a number of industrial electrical installations were put into operation in the USA, including the Niagara Hydroelectric Power Station (1895), the largest in those years.
Tesla demonstrates the principles of radio communication, 1891
In 1891, at a public lecture, Tesla described and demonstrated the principles of radio communication. Tesla was one of the first to patent a method for reliably obtaining currents that can be used in radio communications. U.S. Patent 447,920, issued in the United States on March 10, 1891, described the "Method of Operating Arc Lamps" ("Method of Operating Arc-Lamps"), in which an alternating current generator produced high-frequency (by the standards of that time) current fluctuations of the order of 10,000 Hz. A patented innovation was the method of suppressing the sound produced by an arc lamp under the influence of alternating or pulsating current, for which Tesla came up with the idea of using frequencies that are beyond the perception of human hearing. According to the modern classification, the alternator operated in the range of very low radio frequencies.
In 1893, the scientist took up the issues of wireless communication and invented a mast antenna.
Nikola Tesla Awards:
1. Knight of the Montenegrin Order of Prince Danilo I, 2nd degree (1895).
2. Knight of the Grand Cross of the Order of the White Lion (Czechoslovakia) (1891),
3. Elliot Cresson Medal (1894),
4. Edison Medal (AIEE, 1916),
5. John Scott Medal (1934)
Tesla's name is very popular today. The unit of measurement of magnetic induction in the international system of SI units is named after Tesla. The airport in the Belgrade suburb of Surcin is named after Nikola Tesla. In Croatia, in the resort town of Porec (horv. Poreč), located on the western coast of the Istrian peninsula, there is an embankment named after Nikola Tesla. Streets in Zagreb, Sibenik, Split, Rijeka, Varazdin, Budva (Montenegro), Moscow (IC "Skolkovo"), Yekaterinburg, Teremakh, Lozhka, Astana, Minsk are named after Tesla. Monuments to Tesla are installed near the University of Belgrade, Belgrade International Airport, the Church of the Resurrection of Christ in Podgorica, as well as in the cities of New York (USA), Niagara Falls (USA), Prague (Czech Republic), Cheboksary (Russia), the capital of Azerbaijan – Baku. In Cheboksary, on Ivan Yakovlev Avenue, there is a square named after N. Tesla. There is also the only monument to the inventor in Russia.
In 1970, the International Astronomical Union named a crater on the far side of the moon after Tesla. The asteroid (2244) is named after him Tesla. Thanks to a grant allocated by 2020 ($750,000), the Tesla Research Center in Wardencliff (New York, USA) will turn one laboratory into a museum of Tesla and his legacy, as well as an educational and research center; at the same time, a corresponding program in the field of entrepreneurship and technology will be created.
In the fall of 1937, in New York, 81-year-old Tesla left the New Yorker Hotel to feed the pigeons at the cathedral and library, as usual. Crossing the street a couple of blocks from the hotel, Tesla could not dodge a moving taxi and fell, suffering a back injury and a fracture of three ribs. Tesla refused the services of a doctor, which he followed before, and never fully recovered. The incident caused acute pneumonia, which turned into a chronic form. Tesla was bedridden for several months and was able to get up again in early 1938.
A war has begun in Europe. Tesla was deeply worried about his homeland, which was under occupation, repeatedly making fervent appeals for peace to all Slavs (in 1943, after his death, the first Guards Division of the People's Liberation Army of Yugoslavia was named Nikola Tesla for his courage and heroism). On January 1, 1943, Eleanor Roosevelt, the wife of the US president, expressed a wish to visit a sick Tesla. Tesla's nephew Sava Kosanovich visited him on January 5 and arranged a meeting. He was the last person to communicate with Tesla.