First of all, his advanced contribution:
1, summary:
In the United States, Tesla's reputation in history or popular culture can rival that of any other inventor or scientist. After he demonstrated wireless communication in 1893 and became the winner of the current war, he became one of the greatest electronic engineers in the United States and was highly respected. Many of his early achievements became pioneers of modern electronic engineering, and many of his discoveries were groundbreaking and important. In A.D. 1943, the United States Supreme Court recognized him as the inventor of radio.
Tesla was regarded as a mad scientist in his later years, and attracted attention because he claimed that he could create weird scientific inventions. Many of his achievements are applied with some controversies to support many pseudosciences, such as UFO theory and mysterious theory in the new century. Contemporary admirers of Tesla regarded him as "the man who created the twentieth century". He is a great man forgotten by the world. He invented the alternator, and Edison loved the DC generator he invented, so he tried his best to suppress Tesla with some companies. Tesla would be the richest man in the world if it hadn't been forced to give up the patent for free use of alternating current ($2.53 per horsepower). His dream is to provide inexhaustible energy for the world. Tesla never cared about his financial situation and died of poverty and forgetfulness at the age of 86. Although he is a peerless genius, unfortunately not many people remember him.
Tesla has made contributions in many fields such as robotics, ballistics, information science, nuclear physics and theoretical physics. In addition to the above, he himself has special functions, which are also related to strange inventions such as special functions, flying saucers and particle beam weapons. Even the Tunguska Big Bang was suspected to have something to do with him. However, after Tesla's death was made public, the foreign property custody bureau under the government still obtained his research materials and patents. At the time of his death, Tesla continued his research on long-range power weapons and death rays. Although he failed to sell these weapons to the United States War Department. His death ray seems to be related to his research on spherical lightning and plasma, and it is considered as a particle beam weapon. The U.S. government did not find a safe prototype device. After the War Department contacted the FBI, his research was declared top secret. On the advice of the presidential adviser, all his personal belongings were confiscated; John edgar hoover announced that due to the nature of Tesla's inventions and patents, all his research was top secret.
After Tesla invented the alternator, he began to study the feasibility of "free energy".
1889, he built a laboratory in ColoradoSprings, USA, mainly to study the principle and reaction of Tesla coil. 1895, just as his invention career was in full swing, a bizarre fire destroyed the whole laboratory, all his painstaking efforts, all precious research equipment and scientific experimental materials were burned, and Tesla suffered serious economic losses. He was at a loss under this cruel blow.
After a long period of silence and recovery, at 190 1, he made a comeback from his pain and went out to seek a partner. As a result, he got an investment of $654.38+0.5 million from J. PierpontMorgan, the richest man in the world, and a loan of $654.38+0.5 million, and it was in Long Island, USA. The world broadcasting system was named "WardendyffeProject".
2. The invention of alternating current
During the period of 1888, many newspapers reported that Thomas Edison, a famous inventor, declared that nikola tesla was a "heresy" in the scientific field. His invention of alternating current (AC) directly affected the safety of human life, and showed many times how dogs and cats died instantly after AC (the "electric chair" death penalty was also inspired-it is said that Edison. But alternating current doesn't kill people. It electrocuted all prisoners.
But in fact, today everyone knows how much the world needs alternating current. The invention of alternating current improved people's life, promoted the development of industry and promoted the progress of science. But why did Edison attack alternating current and its inventor Tesla again and again? The answer is that the emergence of alternating current directly threatens Edison's DC business. Because using DC has too many disadvantages and limitations. For example, DC is not conducive to long-distance transmission, and power stations will be added every 1 km, but alternating current can be transformed by transformers as long-distance transmission; The use of direct current is more expensive and its efficiency is far less than that of alternating current. Based on the conflict of interest, Edison tried his best to suppress Tesla's invention.
Prior to this, Tesla invented 24 new products for the great scientist Edison, including a series of redesigns of DC generators and DC motors, which were patented by Edison and mass-produced. Edison also made a lot of money from it, but Edison refused to give Tesla the promised bonus or even a raise, and called it "American humor." Tesla got angry and left Edison and his company. This is the prelude to the current war in history.
1888, with the support of Geovge Westing House, an entrepreneur of Westinghouse Electric Company, Tesla developed a communication system that had been conceived for six years. Six months later, the alternator he developed was patented, and he was invited by the American Institute of Electrical Engineers to explain and demonstrate the research results of the AC system. Because the efficiency of alternating current is far superior to that of direct current, alternating current is widely used and gradually replaces traditional direct current. Driven by interests, Edison vigorously attacked Tesla and branded it as a "scientific heresy", which led to a scientific persecution. Although alternating current has become the mainstream of industrial and social power supply and the necessity of our daily life, the name nikola tesla has been forgotten or even rehabilitated. This is a masterpiece of orthodox science.
3. Niagara Hydropower Station
If you have been to Niagara Falls in the United States, I believe everyone will sincerely admire this magnificent spectacle. Tens of thousands of tons of river water gathered from all directions and poured down in the form of landslides. The rumble of the sudden impact of the river is daunting. In this endless river, there are unexpected rich resources.
1897, in the world-famous Niagara Hydropower Station, the first power station with 65,438+million horsepower was built, which became the main power source in Buffalo, new york, 35 kilometers away. Since then, more than a dozen large and small power stations have been built, producing enough electricity to supply a quarter of the total demand in New York State and Ontario, Canada. Today, this power building, which has been built for more than 100 years, is still running as usual, and natural gas energy has never stopped producing, which can be described as a great miracle in the history of science for nearly a hundred years.
This century-old miracle in science is a design of talented scientist Tesla in his thirties, in which he used nine patented inventions, including the alternator and AC transmission technology invented by Tesla.
In fact, at that time, industry and commerce, public facilities and household appliances all used expensive direct current. Because of the loss in the circuit, a generator set must be built every kilometer when using direct current. Therefore, in the construction of Niagara Hydropower Station, it is impossible to transmit DC power to Buffalo, new york, 35km away. Therefore, when the Niagara Hydropower Station was completed, Americans adopted the AC power transmission technology invented by Tesla to realize long-distance power supply with high-voltage electricity. This epoch-making invention not only solved the problem of long-distance power supply of Niagara Hydropower Station, but also brought people a convenient and cheap electricity environment.
Later, people set up a bronze statue of Tesla in the park of Niagara Falls to commemorate his contribution to Niagara Hydropower Station.
4. Exemption from patent tax
Tesla's life-long invention witnessed his selfless contribution to society. Although he devoted his life to continuous research, he obtained about 1000 patent inventions. However, in his later years, he was down and out for many years. Although many entrepreneurs took advantage of this talented scientist's love and talent and defrauded him of his research achievements and honors, he still worked hard to research and invent for the happiness of mankind in his later years.
Among Tesla's many inventions, nothing can benefit the public more than alternating current (AC) and alternator. In every corner of the world, the development of economy and trade, the progress of science and the enjoyment of life are inseparable from the help of alternating current. At the end of 2003, there was a blackout in the United States and a blackout in Europe, which once plunged into social and economic paralysis. As early as 1882, Tesla had invented the world's first alternator, and in 1885, it invented multiphase current and multiphase power transmission technology, which is a widely used method to transmit power at 50-60Hz.
After Edison invented direct current, electrical appliances were widely used, but at the same time the electricity bill was high, so exporting direct current became the most profitable business at that time. In 1884, after Tesla left Edison, he met George Westinghouse, the head of Westinghouse Electric. With his support, Tesla officially brought alternating current into the society at that time in 1888. 1At the opening ceremony of a World Expo in Chicago in June, 893, Tesla demonstrated the power supply ability of alternating current to light 90,000 light bulbs at the same time, which shocked the audience, because direct current could not achieve this effect at all. Afterwards, Tesla gained the leading power in the power design of Niagara Hydropower Station.
Since then, AC salted fish has turned over and replaced DC as the mainstream of power supply. Tesla, on the other hand, has the patent right of alternating current. At that time, every time it produced alternating current, it had to pay Tesla a patent fee of $65,438 +0. Driven by strong interests, a consortium threatened Tesla to give up this patent right with the intention of monopolizing profits. After many negotiations, Tesla decided to give up the patent of alternating current, provided that the patent of alternating current was made public permanently. Since then, he tore off the patent of alternating current and lost the right to collect patent fees. Since then, alternating current has not been patented and has become a free invention.
5. Theoretical invention
Tesla began to think about the possibility of distorting (or just changing) space and time through electricity and magnetism, and hoped that it would be controlled by people. On his deathbed, Tesla was deeply fascinated by the wave-particle duality, that is, the theory that electromagnetic waves are both waves and particles, which has long been incorporated into quantum physics. Tesla's research in this field gave him an idea, that is, to manipulate a certain mode of electromagnetic waves to create a "light wall." This mysterious wall can change time, space, gravity and matter through will, and produce a series of things that seem to appear only in science fiction, including anti-gravity spacecraft, space transmission and time travel (see the movie Fatal Magic for details).
Perhaps his strangest invention belongs to the "consciousness camera" machine. Tesla imagined that when a consciousness is formed in the brain, a corresponding pattern will appear on the retina, and this electronic file conducted by neurons can be read and recorded by machines. This information can then be processed through the artificial optic nerve and then played back to the screen (see the movie Final Clip for details).
Second, about his personal supplementary explanation:
Nikola tesla (Serbian: николатесла; 1856 July10-1943 June 5438+0.7), an American inventor, physicist, mechanical engineer, electrical engineer and futurist of Serbian origin, is considered as an important promoter of electric power commercialization and is famous for mainly designing modern AC power systems. Based on the electromagnetic field theory discovered by michael faraday, Tesla has made many revolutionary inventions in the field of electromagnetic field. Many of his related patents and theoretical research work in electromagnetism are the cornerstones of modern wireless communication and radio. Tesla died on1June 7, 943. In addition to his achievements in electromagnetism, he is also considered to have made contributions to robotics, ballistics, information science and nuclear physics.