/kloc-a venetian businessman in the 0/5th century often went out to do business, but he was worried that his wife would go out to have an affair. One rainy day, he was walking in the street, with a lot of mud on his heels, and he walked very hard.
Businessmen are inspired by this, because Venice is a water city and boats are the main means of transportation. The businessman thinks that his wife will not be able to walk on the springboard in high heels, so she can be trapped at home. Unexpectedly, his wife felt very novel when she put on these shoes. Accompanied by the servant, she got on and off the boat and played around. Fashionable ladies rushed to follow suit, and high heels quickly became popular.
2. The story of the razor
1828 sheffield made a single-sided protection blade, which is the predecessor of the safety blade. 1895, an American salesman Gillette met an inventor and painter. Painter wants to make a lot of money and invent something that everyone needs and can use once. One day, Gillette shaved and found that the razor blade just met this idea.
So he designed a safe razor handle, but he couldn't find a manufacturer who could make thin blades. It was not until 190 1 that he met Carson, a mechanic, that he solved the technical problem, combined the hoe rest with the double-edged replaceable blade and applied for a patent. As early as 1900, the electric shaver was patented in the United States, but the first electric shaver suitable for commercial manufacture was designed by retired American army colonel Hick and patented in 1928.
3. The story of the refrigerator
The first artificial refrigeration compressor was invented by Harrison in 185 1 year. He is the owner of Quilen advertising company. When he cleaned the type with ether, he found that ether had a strong cooling effect on metals. Ether is a liquid with low boiling point, which is easy to evaporate and absorb heat.
So Harrison developed a refrigerator using ether and pressure pump through research, and applied it to a brewery in Victoria, Australia, for cooling during brewing. The first refrigerator working with an electric compressor was invented by Swedish engineers Brighton and Mendes in 1923. Later, an American company bought their patent and produced the first batch of household refrigerators at 1925.
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Ten ways to cultivate imagination
Burton of Harvard University put forward the following ten points on how to cultivate children's creativity:
First of all, create an atmosphere in which every child is treated as a person and respected and valued as a member of the group.
Second, let every child know self-esteem and learn to put forward his own ideas.
Third, every child should gain the courage and confidence to create achievements and should be allowed to make creative attempts.
Fourth, children need to experience their own abilities and have the freedom of the environment in order to study hard.
Fifth, praise and encourage children's creative attempts.
Sixth, children should be encouraged to explore and choose new ways, and don't stay on what is already clear.
7. Curious attitude should be the main goal of education.
Eight, be good at listening, observing and keeping silent.
Nine, we should avoid the pressure that causes children to be afraid, because fear will imprison children's intelligence and hinder them from leading to new ideas, while daring to learn can lead to exploration; Insecurity can lead to vague opinions and block the way for children to choose answers.
Ten, when evaluating children should avoid superstitious authority.