In one episode of "Lucky 52", the humorous and witty host Li Yong hard to "nano" and "rice" together. From the audience that the back and forth laughing, I know we all understand, the most common, everyone needs "rice" and the most advanced, scientists are competing to study the "nano" has a fundamental difference, put the two together, so that people realize what is the Strong contrast.
It is said that some farmers have inquired about where they can buy nano seeds, and they are ready to plant one to try it out.
But what exactly is a nano? Nano and our daily life with the meter, centimeter are the same unit of length, but this unit of length is much smaller than the meter, 1 nanometer is only a meter of one billion, that is to say, a meter divided into an average of one billion parts, each part is 1 nanometer. We often use "as fine as hair" to describe the thin things. In fact, the diameter of human hair is generally 20 to 50 microns, while the nanometer is only one thousandth of 1 micron! If we make a small ball of only 1 nanometer, put this small ball on top of a ping-pong ball, proportionally speaking, it is like putting two ping-pong balls on top of the earth, can you imagine the length of 1 nanometer? Can you imagine the length of 1 nanometer? We all know that atoms are very, very small, and there are actually three or five atoms in a thousand nanometers. The familiar hemoglobin molecule is 67 nanometers, and some viruses are only a few dozen nanometers in size. The study of nanoscale matter involves dealing with tiny substances that are invisible to the naked eye.
Here are some length conversions that give us a better idea of how big a nanometer is.
1 meter = 1,000 millimeters
1 millimeter = 1,000 micrometers
1 micrometer = 1,000 nanometers
Usually, we call the world that we normally touch the macroscopic world, and the world made up of tiny particles, such as atoms and molecules, that are invisible to the eye is called the microscopic world.
In 1990, the world's smallest letter was born in the laboratory, these three letters is "IBM", these three letters of the alphabet total **** used 35 atoms. From the photos taken afterward, we can clearly see the most "minuscule" great miracle created by mankind at that time. The name "IBM", a giant in the computer industry at the time, was meticulously etched into an area no larger than a virus. What seemed like a game at the time is now a hot topic for scientists.
It seems that the nanometer is not so much a "meter" as it is a unit of length for measuring the tiny world. But will nano be as common, as ubiquitous, and as necessary as rice one day?