Leonardo da vinci made a detailed study of bird flight, and planned several aircrafts at the same time, including helicopter design drawings (but it can't work because the body itself can rotate) and light gliders. 1496 65438+1On October 3rd, he tested a homemade aircraft but failed.

Luban invented the saw based on the inspiration of sawing grass.

Legend has it that once he went into a deep mountain to cut down a tree, he accidentally slipped, and his hand was cut by the leaves of a wild grass, oozing blood. He picked the leaves and touched them gently. It turns out that there are sharp teeth on both sides of the leaf. He gently stroked the back of his hand with these small teeth, and even cut a hole.

His hand was cut by these small teeth, and Lu Ban was inspired by this incident. He thought, if there is such a toothed tool, wouldn't it be able to cut trees quickly! So, after many experiments, he finally invented a sharp saw, which greatly improved the work efficiency.

Edison invented the filament according to the inspiration of bamboo.

In order to improve the quality of light bulbs and prolong their life, Edison tried his best to find suitable materials for filament. During Edison's development of incandescent filament materials.

I have tried cotton thread, thin strips of wood, straw, gauze paper, thread, Manila hemp rope, horse hair, fishing line, chestnuts, hard rubber, nailed wood, rattan, corn fiber, and even human beard and hair.

1880, Edison developed a carbonized bamboo filament lamp, which greatly prolonged the filament life. In the same year 10, Edison set up his own factory in New Jersey and started mass production, which was the earliest commercial incandescent lamp in the world.

Watt invented the steam engine according to the inspiration of boiling water.

1776 made the first practical steam engine. After a series of major improvements, it has become a "universal prime Mover" and has been widely used in industry.

He opened up a new era of energy utilization for mankind and made mankind enter the "age of steam". In memory of this great inventor, later generations set the unit of power as "Watt".

The Wright brothers invented the plane based on the inspiration of bird flight.

The Wright brothers are famous American inventors. Their elder brother is wilbur wright (1867 April16-1912 May 65438), and their younger brother is Orville Wright.

1903 12 17, the Wright brothers made the first test flight of a fully controlled, self-powered and heavier-than-air plane, which was the world's first plane, Voyager 1.

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