What is nano?

Nanotechnology is a high-tech that rose in the 1990s. If the 20th century is a micron century, then 2 1 century is a nano century! . What is nanotechnology? From there, you are a very small unit of length. One nanometer is equal to one billionth 1 meter. If you put a ball with a diameter of one nanometer on a table tennis ball, it is equivalent to putting a table tennis ball on the earth. This shows how small the nanometer is. The research object of nanotechnology is generally between 1 nm and 100 nm, which is invisible to the naked eye and even the ordinary optical microscope can do nothing. There are many nanotechnology in this nano-scale substance, which is a science to study and use these characteristics for the benefit of mankind. Nanotechnology is in the refrigerator around us, and the coating will have the function of sterilization and deodorization. There is a magical material called carbon nanotubes, which is stronger than steel and very light. It is possible for us to take the nanotube ladder and travel in the most advanced stealth fighter. A nano-hippopotamus material can suck away the pots of detection radar, so the radar can't see them at all. Nanotechnology can make people healthier, cancer and cancer, but if only a few cancer cells are found, you will greatly reduce the use of sensitive nanotechnology, which can find and prevent diseases at an early stage. Future nanotechnology robots can even kill cancer cells through vascular lesions. You only need to take the medicine once when you are sick, but now you can take it for two days at most. Future nanotechnology can be a joke. It can be released slowly for a week or even a month. Nanotechnology will bring profound changes to human life. In the near future, there will be the shadow of nanotechnology in our daily life.