1. The straw was invented by Marvin Si Tong of the United States in 1888. /kloc-in the 0 th and 9 th centuries, Americans liked to drink cold and light wine. In order to avoid the hot air in their mouths and reduce the freezing strength of wine, they drink directly without their mouths, but suck with hollow natural straws. However, the natural straw is easy to break, and its own taste will penetrate into the wine. At that time, Marvin Stone, an American cigarette manufacturer, got inspiration from cigarettes and made a paper straw. After tasting, it will neither break nor smell. Since then, people not only use straws when drinking light wine, but also like to use paper straws when drinking other cold drinks. After the invention of plastics, the paper straws were replaced by colorful plastic straws because the flexibility and aesthetics of plastics were better than those of paper straws. The inventor did not apply for a patent.
Second, the straw is based on the principle of atmospheric pressure. When in use, sucking some air by the straw will reduce the pressure in the tube, and in order to balance the air pressure, the atmospheric pressure will force the liquid in the tube to rise. When the inhalation stops, the liquid in the tube drops and the pressure returns to balance. This is the wonderful principle and application of straw.