According to legend, in the17th century, King charles ii of England was a romantic. He pursued many mistresses, and the sequela brought by physical satisfaction was a wave of illegitimate children. This worried the king, but he couldn't restrain his emotional impulse. Charles ii's troubles are written on his face and exhibited in his mouth. His doctor Joseph? Like other priests, Kant is an audience and a witness. But others are helpless, but Kant secretly wants to eliminate the king's sorrow once and for all.
Charles ii (charles ii,1630-1685, king of Scots and English in Stuart dynasty. )
Camden believes that if we can invent something that can shut out semen during sex, we can achieve our goal. Camden looked up the previous data and found that as early as ancient Egypt and Rome, people had used swim bladder and animal bladder for contraception, and in 155 1 year, not far from their own time, there was an Italian anatomy professor, gabriela? Faropio invented a modern condom made of flax. However, whether it is natural swim bladder, animal bladder or artificial linen cover, the effect is not ideal because of its thickness. If the semen is isolated and the pleasure is reduced, it will be counterproductive.
The oldest condom in the world: swim bladder, five layers thick, has a history of more than 300 years, and now it has dried up like a dead leaf (network map).
Just as Edison experimented with various metal materials and finally found the most suitable tungsten wire, Kant also began to look for thin and tough materials. In fact, animal bladder is a more comfortable choice among many materials, but considering its disturbing position, King charles ii scoffed at it and put it on the shelf. Kant associated the bladder with the cecum. Although both of them were in the water, the test was very successful. Camden first cut the lamb intestines into appropriate lengths, dried them in the sun, and then processed them with oil and wheat bran for the second time to make them soft and thin. This invention was a great success because it solved the king's troubles. To this end, charles ii also awarded Kang Dem the title of "Jazz". Moreover, this invention not only serves the royal family, but also benefits ordinary people, especially families with enough children, so it is called a "pleasant invention". The word happiness is a pun. Later, in order to commemorate condoms, condoms were named after condoms.
Because of the invention of the contraceptive pill, he was nicknamed "Jazz". I'm afraid there is no sei except Kandym. ......
Before the invention of vulcanized rubber, this kind of condom made of sheep intestines has always been the first choice for most people. At that time, many pastures in Britain produced condoms as well as wool. France is a big country in condom use because of its romantic life and superficial restrictions on sexual behavior. The British named condoms as "French ruyi bag", which aroused the dissatisfaction of the French, and named condoms produced in their own country as "British hat" and "British raincoat" and so on. Later, with the advancement of time and the global promotion of condom business, a more resounding name came into being-condom.
When condoms were introduced into China, they had a warmer name, namely condoms. However, this name was criticized by Zhu Qi, the first person of AIDS prevention health education in China. He claimed that condoms are actually unsafe, because HIV is much smaller than sperm and can invade through genital mucosa and anorectal mucosa. Moreover, condom education for teenagers in some modern schools often does more harm than good. First, due to the rough and straightforward means of school education, the relevant teachers' knowledge of sexual safety is not perfect. Second, because condom education and promotion actually stimulate students to try sex, because it is "safe" and there are no hidden dangers. The more correct and fundamental method is sexual moral education. In addition, you can also have a glimpse of the "ABC" principle of AIDS prevention summarized by foreign experts. A is abstinence, which in Chinese means "don't do wrong, don't harm others", but this is too harsh, so there is B, be faithful, which means to be single-minded to your lover and not to be promiscuous. Then c, which means condoms. This is an unavoidable digression.
Condoms often appear in AIDS prevention propaganda (network diagram)
There is a 350-year-old condom in the British Museum in London. The condom was found in a toilet in Dudley Castle in central England in the 1980s. It is made of animal small intestine, one end of which is sewn tightly with silk thread to prevent leakage, and the other end can be tightened to prevent slippage. Although the process is simple, it is very durable.
In today's society, the types and patterns of condoms are as charming as flowers. Due to the love of colors in various countries, colorful condoms such as pink, light blue, lavender, goose yellow and even black have been created. Japan, an island country with a huge demand for condoms, is famous for inventing all kinds of ultra-thin condoms, taking the lead in breaking the thickness of condoms to 0.03 mm.
Condoms in today's society (network diagram)