Inventors include Thomas Edison, Archimedes, James Watt, Galileo, Tesla, Wright Brothers, Siemens, etc.

1. Thomas Edison: Edison is a famous American inventor, a successful entrepreneur, and one of the richest scientists in the world. He invented many living devices that provided convenience to people. For example, phonographs, light bulbs, etc. all had a great impact on the world. He held more than a thousand patents in his life and was rated ninth among the 100 people who influenced the United States.

2. Archimedes: Archimedes was a Greek mathematician, engineer and inventor. He was also one of the three world-class mathematicians alongside Gauss and Newton. He made outstanding contributions to mechanics and mathematics throughout his life, which deeply influenced the world. "If you give me a fulcrum, I can lift the entire earth." This sentence is a famous saying of the famous Greek inventor Archimedes.

3. James Watt: James Watt is a British inventor. Everyone must have seen him in history textbooks. He was a key figure in the first industrial revolution. He created the world's first usable steam engine, which later became a "universal perpetual motion machine" with continuous improvements. In order to commemorate this great man, we set the unit of power as "Watt", or "Watt" for short.

4. Galileo: Galileo was an Italian mathematician, physicist, astronomer, pioneer of the scientific revolution, and also a philosopher. He was named the father of modern observational astronomy. He mainly used telescopes to work, and provided supporting theories for the Copernican theory in subsequent astronomical observations. He also invented the pendulum needle and the thermometer, and made great contributions to mankind in science.

5. Tesla: Nikola Tesla, Serbian-American inventor, mechanical engineer, and electrical engineer. He is considered one of the important promoters of the commercialization of electricity and is best known for his design of the modern alternating current system. Based on the electromagnetic field theory discovered by Michael Faraday, Tesla made many revolutionary inventions in the field of electromagnetic fields. His multiple related patents and theoretical research work on electromagnetics are the cornerstone of modern wireless communications and radio.