What kind of person is Leeuwenhoek, and what kind of person is Leeuwenhoek

Leeuwenhoek, a Dutch microscopist and pioneer of microbiology, was born and died in Delft, the Netherlands. Thanks to his diligence and his own unique talent, he sharpened lenses far beyond those of his contemporaries.

He is very interested in the microscopic world under a magnifying lens, and observes a wide range of objects, mainly crystals, minerals, plants, animals, microorganisms, sewage, insects, etc. In 1674 he began to observe the sedan and protozoa, what he called "very tiny animals." He also measured their size.

He was the first to see bacteria and protozoa with a magnifying lens. Despite his lack of formal scientific training, his meticulous observations, precise descriptions, and numerous astonishing discoveries of tiny worlds invisible to the naked eye laid the foundation for the development of bacteriology and protozoan almanacs in the 18th and early 19th centuries.

His images based on microorganisms seen with a simple microscope still appear to be correct today.

Due to the weakness of the basic knowledge, the content of his report was limited to a few observed facts, and failed to rise to the level of theory. His microscope methods are also kept secret, and some of them are still unsolved mysteries. He made lenses as small as a needle.

The maximum magnification of the appropriate lens can be up to 300x.

Antony van Leeuwenhoek (24 October 1632 – 26 August 1723) was a Dutch microscopist and pioneer of microbiology, born and died in Delft, the Netherlands.

In 1648 he became an apprentice in a cloth shop in Amsterdam. At the age of 20, he returned to Delft to sell his own silk cloth. After middle age, he was assigned by the mayor of Delft to work in municipal affairs.

This kind of work is very rewarding and easy, and gives him more time to work on the work of grinding lenses, which he has loved since childhood, and to observe the subtle objects of nature. Due to his diligence and his own unique talent, he sharpened his lenses far beyond those of his contemporaries.

There are many forms of magnifying lenses and simple microscopes, and the materials of lenses include glass, gemstones, diamonds, etc. He honed more than 400 lenses in his lifetime, and there is a simple convex lens with a magnification of 300 times!

Leeuwenhoek (1896 – 1934) was a Soviet psychologist and educator who is considered one of the founders of modern psychology and educational psychology.

Leeuwenhoek's main areas of research are child developmental psychology and educational psychology. He put forward the "cultural history theory", which argues that human thinking and cognitive abilities are gradually developed on the basis of cultural and social history. He proposed the "Interval Development Theory", which argues that human cognitive and thinking abilities can be improved through social interaction and learning, and that this improvement can exceed the natural development level of the individual goather.

Leeuwenhoek's books, including "Thinking and Language" and "Culture and the Development of Recognition", have had a profound impact on psychology and educational psychology.

Leeuwenhoek was Dutch. He was born into a very poor family, and when he was very young, his father died early because he could not afford medical treatment. In his childhood, he wandered around in order to make ends meet.

At the age of 16, he was apprenticed to a grocery store, working 12 hours a day. However, he was very ambitious and refused to bow to the fate of suffering. He tried his best to learn knowledge and skills.

Every night, in the dim light, I open the books I borrowed from others, and study hard and earnestly on my own.

The neighborhood of this grocery store is an optical store. Leeuwenhoek often saw people in the opticians grinding lenses, and he gradually became interested in lenses. Whenever he had time, he went to the optical shop to observe the grinding of lenses, and sometimes tried to sharpen them, so that he gradually mastered the technique of grinding lenses.

At the same time, he also learned what kind of lenses can make people see things bigger, and what kind of lenses can make people see things in the distance.

After five or six years, Leeuwenhoek's grocery store went out of business. Leeuwenhoek lost his job and went back to living a wandering life. Later, he found a job as a gatekeeper for the city, and his life was stable.

He is in a position to study again. On the one hand, he studied cultural knowledge on his own, and on the other hand, he carefully and meticulously polished his lenses. At this time, he had a desire to make an instrument that could magnify objects and observe small things that could not be seen with the naked eye.

Of course, it was not easy to create such an instrument. With his own hands, he grinds little by little like an "iron pestle sharpening needle". I don't know how many times I have failed, I don't know how many sleepless nights I have spent, I don't know how many blood blisters have been ground on my hands, I don't know how many people have ridiculed me, but in the end, I finally succeeded, and a high-precision lens of fully qualified quality was successfully completed.

The success of the lenses allowed Leeuwenhoek to complete the most basic work of the instrument he envisioned. With joy in his heart, he mounted the high-precision lens on a metal plate and installed the screw rod to adjust the lens. Thus was born the world's first microscope.

Demographed by the great success of this instrument, Leeuwenhoek became one of the most prominent figures in the history of microscopy. His success is due to his skill in sharpening lenses (he can magnify them up to 300 times) and his perseverance in creating microscopes. The advent of the Leeuwenhoek microscope opened the door to the study of microbiology and opened a new era of human conquest of infectious diseases.