Share the QR code < / P > < p > with wechat scanning code to friends and circles of friends < / P > < p > < / P > < p > on October 19, stimulated by the trend of global warming, many investors began to turn to the field of time-consuming nuclear fusion technology, hoping to make great profits from the commercialization of nuclear fusion technology < p > some people insist that the use of nuclear fusion technology can develop commercially viable energy, and perhaps eventually this clean energy can completely replace fossil fuels in the next few centuries. But for a long time, the industry has believed that developing this technology is too difficult, comparable to landing on the moon or going to Mars < p > < / P > < p > illustration: the video image from the Tokamak energy company's nuclear fusion device shows that a powerful beam of light enters the high-temperature gas < p > however, investors' interest in developing nuclear fusion energy is still gradually rising, the number of start-ups in related fields is doubling, and the industry is taking shape. It is estimated that there are now more than 1100 employees in the bank; The company network providing highly specialized equipment such as powerful magnet components required for fusion equipment is also expanding < p > recently, Britain even considered it necessary to promulgate laws and regulations related to the development of nuclear fusion energy, which is also a milestone for a booming emerging industry < p > no one knows when nuclear fusion energy will really be commercially viable, but warnings about the trend of global warming have also promoted private investment in related industries < p > David Kingham, one of the three co founders of Tokamak energy, said, "no one has a better plan to deal with the climate crisis." Tokamak energy has raised about $200 million, most of which comes from private investment < p > the goal of Tokamak energy is to finally heat the isotopes of hydrogen to a high enough temperature to make the atoms combine in the reaction, so as to release huge energy. This is the essence of fusion, which is often described as the source of energy generated by the sun and stars < p > the company's laboratory is located in the business park outside Oxford. The public address system will broadcast an alarm every 15 to 20 minutes to remind all staff that the test is coming. Everyone should stay away from the room equipped with fusion device. The room is separated from the outside world by a heavy steel wall 14 feet high. First there was a whistling sound that lasted about a second. Then a pulse video appears on the monitor, showing that a strong light beam is shooting into the superheated gas called plasma < p > the fusion prototype built by Tokamak costs US $68 million and can reach 11 million degrees Celsius during the test. Scientists estimate that to achieve fusion, the temperature needs to reach 100 million degrees Celsius, which is about seven times the temperature of the sun's core. They hope to achieve this goal by the end of this year < p > Otto Asunta, a 40 year old senior physicist and a scientist in the control room of Tokamak, said that since he joined the company six years ago, the number of employees has increased tenfold to 180, and the work has become more and more complex < p > "we make world-class equipment," assanta said < p > the name of Tokamak energy company comes from a device invented by the former Soviet Union and is now the main research content in this field. Tokamak attempts to use a strong magnetic field to constrain and compress superheated gas to achieve nuclear fusion, which can be said to create lightning in a bottle < p > illustration: Tokamak attempts to use a strong magnetic field to restrain and compress superheated gas to achieve nuclear fusion < / P > < p > the company was founded in 2009. Many scientists believe that they can achieve more in a flexible small company than in large institutional laboratories such as the fusion energy research center in Culham, UK, or the international thermonuclear fusion experimental reactor (ITER) project under construction in southern France, which costs US $25 billion < p > since the early 1990s, the number of start-ups developing fusion technology has been increasing rapidly. Andrew Holland, CEO of the fusion Industry Association, said that at least 35 companies in the United States, Britain, France, Canada and China are engaged in relevant research. According to an upcoming study by the association and the British Atomic Energy Authority, these companies raised a total of $1.9 billion, most of which came from private investment < p > why invest money in an unreachable exploration field that has never made a penny? Investors said that what attracted them was the broad prospect of early involvement in technology that could change the rules of the game: such a fusion reaction that produces far more energy than it consumes could bring huge commercial profits < p > David Harding, the founder of the two investment management companies, is one of the main supporters of Tokamak energy. His assets are estimated to be worth $37 million. Harding said that the idea of "providing cheap and unlimited energy through scientific magic" has attracted him for a long time. Now "the trend of global warming makes this idea more obvious." < / P > < p > investors said they have seen real benefits. Mark white, investment director of UK Science & innovation seed fund, said that his fund invested US $550000 in Tokamak energy for the first time last year and is now worth more than US $1 million. Tokamak energy is currently valued at approximately $440 million < p > another investor in fusion technology is Vinod Khosla, founder of Khosla ventures. Kosra venture capital is a venture capital company headquartered in Menlo Park, California. The company is investing in common wealth fusion systems spun off from MIT < p > kosra said in an interview that in order to make nuclear fusion, a project that has lasted for decades, sought after by investors, the key is to divide a project into several phased objectives so that investors can effectively supervise it before investing more funds < p > Commonwealth recently announced the successful testing of a magnet that is crucial to many nuclear fusion technologies. The company calls it the most powerful magnet in the world, which is welcomed by investors < p > kosra said, "I don't think we will have any difficulty in the next round of financing." < / P > < p > supporters of nuclear fusion technology said that progress in magnets and other fields has greatly improved the possibility of success. Phil La, investment manager, breakthrough energy VenturesPhil Larochelle said that although it was generally believed that the industry would not return until decades later, it "has actually made great progress". Breakthrough, a venture capital firm with Bill Gates as chairman, also invested in Commonwealth < p > scientists in the field of fusion say that the influx of private funds and a variety of methods to solve the problem have had a positive impact < p > Jonathan E. Menard, deputy director of research at Princeton Plasma Physics Laboratory, said: "it is difficult to predict which method will eventually win, but there will be many excellent R & D projects." < / P > < p > however, senior executives in the nuclear fusion industry said that significant increases in spending will be required in the next few years. Tokamak energy hopes to spend $1 billion to build an experimental fusion machine using a powerful magnet developed by the company, which has thousands of times the strength of the earth's magnetic field. This device can become the core of power plants and can also be used for other commercial purposes < p > however, it is not easy to persuade investors to increase their investment from US $1 million to US $50 million or even US $100 million < p > Michel binderbauer, CEO of Tae technologies, headquartered in California, said: "people are still measuring the return on investment by common indicators, such as how much revenue a company can generate." Tae technologies has raised about $900 million, which is also the largest amount publicly raised by nuclear fusion start-ups < p > these pressures prompted bindbauer to try to convert some technologies developed by TAE on the road of nuclear fusion research into other businesses. A subsidiary of TAE is developing a method of using particle beams to treat cancer. Such joint ventures are easier to convince investors, he said < p > however, supporters of fusion technology say that a turning point may come when large investors compete to participate in the industry. Hedge fund founder Harding said, "once there is financial support, there will be unlimited possibilities." "there are not many nuclear fusion projects in the world, but there are many investors." (Chen) < / P > < p >