What are five examples of bad things turning into good things?

Five examples of bad things turning into good things:

For example, you should have gone camping yesterday, but it rained heavily, so you reviewed your lessons at home. Today, you suddenly took the exam. Because you reviewed your lessons, you got good grades. Isn't this a bad thing turned into a good thing?

Second, the bacteriologist Fleming, in the process of a bacterial culture, his experimental samples were accidentally forgotten for a period of time. By the time I remembered, the experimental sample was already moldy. Through observation, it was found that mold had the ability to kill germs, and penicillin was invented through a series of subsequent studies.

Third, the construction of the Grand Canal was mainly for Yang Di's voyage to the Western Ocean, which wasted people and money, but now it has become the route of South-to-North Water Diversion. Not bad things become good things.

Four, Coca-Cola can become a beverage product, completely out of an accidental "mistake"! Pemberton, an amateur pharmacist in Atlanta, USA, had a whim one day and wanted to develop an exciting drug. He used eucalyptus leaves as materials and made a lot of efforts, but the curative effect was always unsatisfactory. Later, under his improvement, "Coca-Cola" changed from medicine to drink, which became popular all over the world.

On a sunny day, Xiao Ming and Xiao Gang are eating a delicious breakfast at home.

After dinner, Xiaoming is responsible for washing dishes and Xiaogang is responsible for cleaning the table. Xiaogang accidentally pushed the plate to the ground with a cloth, and the plate fell apart. Xiaogang picked up the pieces carefully like a jigsaw puzzle, ready to throw them away without hesitation.

Xiao Ming rolled his eyes and stopped Xiao Gang, saying, "These fragments may make a work!" " "Say that finish, Xiao Ming brought colorful brushes and dangled them on the plate. I saw the brush dancing on the plate, and two lifelike small fish were born where the pen tip slipped. Xiaoming and Xiaogang hung two small fish on the wall.

What a beautiful work!