赞 goldflower 幼苗
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When accidents become inventions
Have you ever noticed the little accidents in your life? Sometimes accidents are g 86 . They can even change your life - many useful things were invented by accident.
For example, at first, jeans were o 87 for workers. They were very s88
and become weak easily. But other people found they could last for a long time without breaking or getting weaker as well. Later on, jeans became popular all over the world.
When you see colorful fireworks, you probably don't think about the Chinese cook who invented them in old times by accident. He mixed together some common things from the kitchen. The m 89 burnt and made a beautiful light.
The invention of the Band-Aid (创可贴) was also a surprise. About 90 years ago, Earle Dickson worked at Johnson & Johnson. His wife was always accidentally cutting her fingers in the kitchen, but she couldn't bandage (包扎) herself up. Dickson decided to make something to help his wife cover her cuts. So he used a piece of gauze (纱布) and put it on some tape (胶布). Later, his boss made this into a popular product: the Band-Aid.
Nowadays, microwave ovens are popular around the world. But in the b 90 , people invented the microwave for the war. American Percy Spencer found that microwaves could cook. He saw a candy in his pocket getting soft when he worked b 91 the microwaves. Spencer then did many tests to p 92 that microwaves could cook food. In 1947, the first microwave oven in the world came into being.
Have you ever noticed the little accidents in your life? Sometimes accidents are g 86 . They can even change your life - many useful things were invented by accident.
For example, at first, jeans were o 87 for workers. They were very s88
and become weak easily. But other people found they could last for a long time without breaking or getting weaker as well. Later on, jeans became popular all over the world.
When you see colorful fireworks, you probably don't think about the Chinese cook who invented them in old times by accident. He mixed together some common things from the kitchen. The m 89 burnt and made a beautiful light.
The invention of the Band-Aid (创可贴) was also a surprise. About 90 years ago, Earle Dickson worked at Johnson & Johnson. His wife was always accidentally cutting her fingers in the kitchen, but she couldn't bandage (包扎) herself up. Dickson decided to make something to help his wife cover her cuts. So he used a piece of gauze (纱布) and put it on some tape (胶布). Later, his boss made this into a popular product: the Band-Aid.
Nowadays, microwave ovens are popular around the world. But in the b 90 , people invented the microwave for the war. American Percy Spencer found that microwaves could cook. He saw a candy in his pocket getting soft when he worked b 91 the microwaves. Spencer then did many tests to p 92 that microwaves could cook food. In 1947, the first microwave oven in the world came into being.
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