According to foreign media reports, the industrial revolution has been a part of our history for some time, and we always tend to think that most modern facilities originated from that time. Actually, it is not. Many things we use every day are things that human beings have used for thousands of years. The following are things that existed before Jesus was born, and we are still using them or are very familiar with them. ** 1. Plastic surgery * *! Plastic surgery is one of the oldest surgical operations. Nose reconstruction surgery may have existed in ancient India as early as 2000 BC, when nose amputation was a form of punishment, so that people invented a method of nose plastic surgery using part of forehead, which is still applicable today. This operation is also discussed in ancient Greek and Roman literature. **2. Dental drill * *! [][2] As early as 7000 BC, there was evidence of dental surgery in indus valley civilization. This earliest dental operation involved using a drill to treat teeth. The appearance of this ancient dental tool shows that the method used by the ancients is reliable and effective. **3. Cataract surgery * *! [][3] The earliest records of cataract surgery come from the Bible and Indian historical materials. Su Xuruta, a famous Indian doctor, is famous for cataract surgery. In India, a special tool called Jabamukhi Salaka is used for cataract surgery, which is a needle used to loosen the lens and push out the curved cataract. After that, the eyes should be soaked in warm butter and then bandaged. Although this method has been successful, Su Xuruta warned that cataract surgery can only be performed if absolutely necessary. **4. Central heating system * *! [][4] Some cities in ancient Roman civilization began to use central heating system in about 1000 BC, which conducted the air heated by the stove through the space under the floor and then came out from the pipes in the wall. This is the heating system of kang. Kang heating system is used for heating public bathrooms and private houses. The floor is lifted off the ground by pillars, leaving a certain space in the wall. The hot air and smoke from the stove pass through these bounded areas and come out from the smoke vent on the roof, so that the room can be heated without polluting it. Ceramic box bricks are built into the wall, which can not only isolate burning air, but also heat the wall. Ancient China and South Korea also had similar heating systems, called kang. **5. Lens * *! [][5] nimrod lens is a colorless crystal, dating back to 3000 years ago. It was discovered by Austin Henry Layard in the Assyrian Palace in nimrod. It may be used as a magnifying glass or a fire-taking mirror to make a fire by gathering sunlight. Assyrian folk artists can make complex prints, and they may also use this lens in their works. Roland Nato, a professor at the University of Rome in Italy, believes that the ancient Assyrians regarded this lens as part of a telescope, which may explain that the ancient Assyrians had a better understanding of celestial literature. **6. Measurement and calibration * *! [][6] Scientists' archaeology of the Indus ruins shows that the residents of indus valley civilization invented an advanced standardization system using weights and measures. This technical standard directly leads to the popularization of measuring instruments for angle measurement and architectural measurement. The measuring equipment also includes a balance and many parts of some equipment. Since ancient times, weights and measures have always existed in one form or another. The earliest weights and measures are simple and arbitrary standards formulated by regional or local governments, which are often based on actual measurement standards, such as arm length. The earliest examples of these standardized measurements are length, time and weight. **7. Perfume * *! [][7] The first recorded pharmacist in the world was a woman named Taputi. According to cuneiform records in Mesopotamia in 2000 BC, Tapti was a perfume manufacturer. She distilled flowers, oil and calamus roots, then filtered them and put them back into the distiller for distillation several times. Recently, archaeologists unearthed what is considered to be the oldest perfume in the world in Cyprus. This perfume can be traced back to more than 4000 years ago and was discovered by an ancient perfume shop. Archaeologists found at least 60 stills, The Mixing Bowl, funnels and perfume bottles in this 4,000-square-meter factory. At present, scientists have synthesized four kinds of perfumes based on the perfume residues found in this site. **8. Roller skates * *! [][8] A study by Federick Formenti of Oxford University and Albert Minati of Milan University found that roller skates were invented by Finns. 5,000 years ago, they made the earliest skates from animal bones. Roller skates are very important for Finns, which can help them save energy when hunting in severe winter. The earliest skates using metal sheets were found in Scandinavia, dating back to AD 200. This kind of skates connect copper strips under leather shoes. **9. Underground pipeline * *! [][9] In 2700 BC, standard wide-sided ceramic pipes using asphalt to prevent leakage appeared in the cities of indus valley civilization. Underground pipeline equipment originated from Greek, Roman, Persian, Indian, China and other ancient civilizations. Because people need to provide drinking water and discharge waste water to build public bathrooms, they designed such pipes. /kloc-before the 0/9th century, the improvement of pipeline system was very slow. ** 10. Plywood * *! [][ 10] Plywood has a history of thousands of years. The earliest plywood appeared in ancient Egypt around 3500 BC, when people glued sawn boards together. At first, it was because of the lack of high-quality wood that such an idea was born. Sticking the high-quality board to the inferior board is not only for aesthetic reasons, but also for structural reasons. There are many similar inventions in history. [ 1]:/p/20 1 102 16/20 102 16 15295 1-973789932 . jpg[2]:/p/20 1 10265438