1. Gunpowder
Gunpowder is one of the four great inventions. "Fan Zi Ye Ran" records that China has been used for folk and people's livelihood applications in the Spring and Autumn Period. Gunpowder is produced under the action of appropriate external energy. Under the condition, it can burn rapidly and regularly, and at the same time generate a large amount of high-temperature gas substances.
Gunpowder was originally invented to pursue immortality. The earliest alchemy was indeed edible, but later many other things were added, causing a stir-fry, and gunpowder was born.
The emergence of gunpowder has made a great contribution to the organization of war, but it has not made any contribution to mankind, only harm. However, it is not safe without these things today.
2. Keyboard
The keyboard is a thing with a long history. As early as 1714, it was made into various typewriters by people from Britain, the United States, France, Italy, Switzerland and other countries. The earliest The keyboard was used on typewriters whose technology was not yet mature at that time. It was not until 1868, when the "Father of the Typewriter" obtained the patent and operating rights for the typewriter that the current keyboard was invented.
Typing on the keyboard is just a way of transmitting information. Many people use it to express extreme ideas to each other on the Internet. However, some people with bad tempers will even pick up the keyboard and hit others directly.
3. High heels
High heels have become a symbol of modern women. Although some men who like to wear women's clothing also like to wear them, what were high heels invented for in the first place? Of course it is not to make women beautiful. One of the theories behind the invention of high heels: It originated from King Louis XIV of France.
He suffered from the fact that he was short in stature and could not show his noble demeanor in front of his subjects, so he ordered the most skilled shoemaker to tailor a pair of high heels for him. After that, French men felt that this kind of shoes could make them look more imposing, so they followed suit and started wearing them.
The second theory is that in the 10th century, in order to make themselves more aggressive on the battlefield and hunting grounds, men would wear high heels while riding horses. The third theory is that a Venetian businessman was afraid that he would go out after going out. When his wife misbehaved, he made her a pair of shoes with very high heels.
My wife didn’t know its purpose, but she liked the shoes very much. She asked the maid to accompany her shopping, and she stole the show. Women’s high heels began to become popular. The fourth theory is that in Europe in the second half of the 16th century, the heels of riding boots were very high, which could prevent stains and feces on the road, so everyone saw the appearance of riding boots and modified their own shoes.
4. Black silk and white silk
The invention of black silk and white silk came from the war. At that time, soldiers could not wash clothes for a long time, and they were prone to sweating during regular exercise, especially There was a need for socks that were lightweight, breathable and sweat-absorbent, so black silk and white silk were born. The famous representative of this kind of socks is Louis XIV.
Louis XIV can be said to be a pioneer in European fashion.
5. Sanitary napkins
Women in the past did not have sanitary pads. The original intention of sanitary pads when they were invented was actually closely related to men. They were mainly used in wars. During the war, , a paper company in the United States discovered a material called fiber cotton, which is five times more absorbent than cotton and costs less than half of cotton.
The company immediately produced a large number of medical cotton pads made of fiber cotton and put them on the battlefield. There was a better way, they made them into the earliest auntie towels.
Later, nurses in the United States and Britain quickly followed suit. After the war, Kimberly listened to the nurses’ suggestions and officially named the auntie towel Kotex.
6. Coca-Cola
Cola was first used as a substitute for medicine or alcohol, and later became a common drink. When Coca-Cola was first invented, it was just a way to refresh yourself. , syrup for relieving fatigue and treating headaches. After replacing alcohol, Coke can only be bought in pharmacies. The original Coke did not have gas.
In a lucky accident, someone mixed syrup with soda water, and a miracle happened, and Coca-Cola was born today.