Internal energy increment equal to the amount of outside transferred to its three first law of thermodynamics ① contents of a thermodynamic system can increment equal to the outside world and transfer its heat to the outside world and the work done to it. There are positive and negative expression Δ = ② the energy conservation law neither energy nor a vacuum occurs suddenly disappear it can only converted from one form to another form or transferred from one object to another object in the process of conversion or transfer the total amount of the permanent magnet ③ adhere to the same kind of perpetual motion machine of the first people to conceive of without any power or fuel consumption without a steady stream of energy able to work outside of the machine. Exercises. The first perpetual motion machine can not be made in violation of what. Violates the first law of thermodynamics. Violation of the law of conservation of mechanical energy. In violation of the law of conservation of energy Xuehaiwuya Crossroads learn more auxiliary secondary school education accompanied trip Miles victory is a little progress every day. The above statement is not right. Comply with the following scenario in energy conversion and conservation laws. The use of permanent magnets and soft iron machine interaction never made a rotation down. Manufacturing an aircraft does not carry fuel can fly using only solar energy. Make a boat against the current energy use of water does not have to travel to other power. The use of nuclear power on the ball to leave the solar system within the body can change the following statement is correct. Can certainly increase the body absorbs heat inside. Likely to increase in the body can work outside. While foreign objects absorb heat energy increment equal to the external magnetic levitation train is transmitted to it since about 200 years ago, Stephenson's "Rocket" steam locomotive railroad advent of the most fundamental breakthrough technology. Maglev trains today seems a fresh look at things, in fact, it's theoretical preparation has a long history. Maglev technology research from Germany hydraulic magnet, early in 1922, the German engineer Hermann Kemper proposed the principle of electromagnetic levitation magnet accessories, and a patent application for a magnetic levitation train in 1934. After the 1970s, with the industrialized world continue to strengthen the country's economic strength, to improve transportation capacity to meet the needs of their economic development, Germany, Japan, the United States, Canada, France, Britain and other developed countries have begun to conduct magnetic levitation transportation system planning development. Application Chinese NdFeB magnets NdFeB application follows the application of high-tech products accounted for 37% of the field, such as magnetic resonance imaging (MRI), the phone vibrates, hard drive voice coil (VCM), disc (DVD, CD- ROM) drive shaft, power tools, electric vehicles, inverter air conditioner engine. Application of traditional areas of affordable products accounted for 63%, such as audio devices, magnetic adsorption devices, magnetic devices, magnetic devices. Bags magnet magnetic new Xin Tong, a magnet is provided by Xin Tong, Dongguan City, the new magnetic Limited. Xin Tong, Dongguan City, the new magnetic Limited (www.dgxtxmagnet.com/) is Dongguan, Guangdong, magnetic leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the new Tong Xin magnetic leadership with the staff warmly welcome all inquiries to discuss, with new magnetic Tong Xin a better future.