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Examples about time

1. Not a day off

The famous Chinese painter Qi Baishi, whether he is painting shrimps, crabs, chickens, peonies, chrysanthemums, morning glories, or Chinese cabbage, everything is vivid. It is said that one morning when he was eighty-five years old, he wrote four banners and wrote a poem on them: "Yesterday there was a strong wind and I felt uneasy, so I did not paint. I would like to add it now. Don’t teach me how to spend a free day.”

2. Darwin cherished his time

According to Darwin’s wife Emma, ??Darwin often stayed up day and night while writing his book “On the Origin of Species”. , no night lasted more than five hours, and when he was seriously ill and dying, he still insisted on observing and recording the growth of plants, which he did not stop until two days before his death.

3. Si Guang Guang cherished time

Sima Guang, the author of "Zi Zhi Tong Jian", had a pillow made of logs. When he was sleepy from studying, he would sleep on the logs. As soon as he turned over, the sleeper would roll away and the person would wake up. He used this method to force himself to squeeze in time to study hard.

4. Lenin cherished time

There is a memoir that recalls a comrade reporting work to Lenin. Lenin approved his plan and asked: "Then when will you start? ?" "Start tomorrow," said the comrade. Lenin criticized him and said: "Why not start today: now!" From this we can see that Lenin cherishes time very much.

5. Mr. Lu Xun

Mr. Lu Xun cherished time very much. He "used the time that others drank coffee in writing", thus writing a lot in his life and becoming a literary giant of his generation. .

Extended information:

The time timing system is a working system that determines and broadcasts precise times. Whenever the hour hits the hour, the radio that is listening to the broadcast will broadcast the sound of "beep, beep...". People use this to calibrate the speed of their clocks. Where does the correct time on a radio station come from? It is controlled by the observatory's precise clock.

We know that the earth rotates evenly once a day, so the stars in the sky rise in the east and set in the west once a day. If the earth is regarded as a big clock. The stars in the sky are like the numbers on a clock that represent the hours.

The positions of the stars have been well measured by astronomers, which means that the numbers on the face of this natural clock are known very accurately. An astronomer's telescope is like the hands on a clock. On the clocks we use every day, the hands turn and the clock face does not move. Here, it seems that the hands "do not move" and the "clock face" is rotating.

When the stars are aligned with the telescope, astronomers know the correct time and use this time to correct the observatory clock. This way astronomers can always know the correct time from the observatory's clock face. Then at a certain time every day, for example, on the hour, it will be broadcast through the radio, so that we can calibrate our clocks or meet other work needs.

Astronomical time measurement relies on the rotation of the earth, and the unevenness of the rotation of the earth makes the time (universal time) accuracy obtained by astronomical methods only reach 10-9, which cannot meet the needs of society in the middle of the twentieth century. needs of all aspects of the economy. A more precise and stable time standard emerged, which is the "atomic clock".

Countries around the world use atomic clocks to generate and maintain standard time, which is the "time base". Then, time signals are delivered to users through various means and media, including: short wave, long wave, telephone network, Internet, satellite, etc. This entire process is called "timing system".