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Stick to the example of victory (celebrity's)?

Edison made a detailed test plan after summing up the previous failure experience in manufacturing electric lamps, and conducted experiments in two aspects: one was to classify and test 1600 different heat-resistant materials; The second is to improve the vacuum pumping equipment to make the bulb have a high vacuum degree. He also studied the new generator and circuit shunt system.

Edison tested 1600 kinds of heat-resistant luminescent materials one by one, but the linear energy of platinum wire is good, but the price of platinum is amazing, so we must find a more suitable material to replace it. 1879, Edison finally decided to use carbon filament after many experiments. He sprinkled carbon powder on a piece of cotton silk, bent it into a horseshoe shape, heated it in a crucible, made it into a filament, put it in a bulb, and then pumped the air out of the bulb with an air extractor. It can be used continuously for 45 hours when the light is on. In this way, the first batch of carbon filament incandescent lamps in the world came out. 1879 On New Year's Eve, Lopark Street where Edison Electric Company is located is brightly lit.

In order to develop electric light, Edison often worked in the laboratory for more than ten hours a day, and sometimes experimented for several days. After he invented carbon fiber, he experimented with more than 6000 kinds of plant fibers. Finally, he chose bamboo filaments, burned them in a high-temperature closed furnace, and then processed them to obtain carbonized bamboo filaments, which were put into the light bulb, thus improving the vacuum degree of the light bulb again, and the light bulb could be continuously lit for 1200 hours.

1600 different heat-resistant materials

More than 6000 kinds of plant fibers

The number of tests is even more difficult to count.

The data in these columns are enough to illustrate his persistence.

I prefer:

"Victory often lies in persistent efforts."

I hope the example I am looking for can meet your needs.