With a lifetime to grind a mirror, this "stupid thing" is rarely willing to do. In Holland, however, a junior high school graduated from a small town, working as a guard of the town government in a small town.
At that time, the work of the doorman was more leisurely. So, in order to get rid of the time, the youth developed the hobby of polishing the lens. Young people are very focused and meticulous. Over the years, their technology has surpassed professional technicians. The magnifying power of their composite lenses is higher than that of them.
In this way, young people perseveringly grind for sixty years, and let him find another vast world that science and technology did not know at that time -- the microbial world. The magnified lenses and simple microscopes he made are in many forms; the materials of the lens are glass, gemstones, diamonds, etc. He grinded more than 400 lenses in his life, with a magnification of 270 times. In 1674 he began to observe the bacteria and protozoa, what he called "very tiny animals". In 1677 he described the sperm of insects, dogs and humans for the first time. In 1684 he accurately described the red blood cells, that Malpighian capillaries are real speculation. In 1702 he pointed out that microorganisms could be found in all opencast water. He observed the life history of many animal and insect proof, they are all from the eggs, and experienced larvae stage, rather than from the sand, mud or dew in naturally occurring.
This young man is a great reputation in the history of science, 90 years of life scientists in Holland Wan Leeuwenhoek.
The feeling of life:
Leeuwenhoek carefully grind every lens and devoted all his life to the improvement of every ordinary detail. At last, he achieved remarkable achievements in his details and created a great miracle in the history of science. The details affect the quality, the details reflect the taste, the details show the difference, the details are decided to succeed, the strength of the details is "moistening the things and silent".