What modern technologies have the shadow of ancient technologies?

? Although the society is progressing with each passing day, many scientific and technological levels have surpassed the ancient times, but without the inventions of the ancients, our descendants could not have made great progress on the original basis, not to mention our four ancient inventions. Gunpowder, papermaking, compass and printing were combined with the Kongming Lantern invented by Zhu Gekongming in the Three Kingdoms period. Although these inventions have existed for thousands of years, today's technology is still inseparable from him, and they can be seen in many high-tech things.

? 1, gunpowder. Gunpowder was invented by ancient Taoist priests, who made gunpowder in the process of alchemy, although it has been more than 1000 years. However, his shadow can still be seen in many things, such as the military function of gunpowder, the propellant of bullets and shells, the propellant of rockets and missiles and the energy of other driving devices, which are all important components of ammunition. Although it was not black powder at that time, it was inseparable from the inspiration of black powder.

? 2. papermaking. Needless to say, papermaking today is no different from that in ancient times. Although the process is different and the quality is improved, the general industrial requirements are still similar. It can also be said that papermaking is the beginning of the ancient industrial revolution.

? 3. compass. Because of the earth's magnetic field, compasses are used most in our lives, such as mobile phones, cars and airplanes. Satellite and other high-tech equipment are inseparable from the compass, which can be said to be the thing with the most traces of ancient science.

? 4. printing. This kind of movable type printing was invented in ancient times and has been used in many devices, such as printers for printing newspapers and periodicals. Now they are actually laser printers, but they are inseparable from the inspiration of printing.

? 5. Kongming Lantern. Kongming lanterns are also many in our life. For example, today's hot air balloon is a sport in many parts of the world, and it is also the place where the scientific community is closest to ancient science.