What are the examples of reform and innovation?

1, the story of Lu Ban inventing the saw

Lu Ban was born around 507 BC, whose real name is Gong Bo. Because "Xiang" and "Ban" are homophonic, he was a native of Lu in the Spring and Autumn Period and the Warring States Period, so he was called Lu Ban.

He thought, if there is such a toothed tool, wouldn't it be possible to cut down trees quickly? So after many experiments, he finally invented a sharp saw, which greatly improved the work efficiency.

2. Five old Baishi people who are easy to paint.

Qi Baishi, a carpenter, became a painter by himself and won the World Peace Prize. However, in the face of his success, he was never satisfied, but constantly absorbed the strengths of famous painters of all ages and changed the style of his works. His paintings after 60 are obviously different from those before 60.

3. Cai Lun papermaking?

Since ancient times, people in China have written or carved characters on bamboo pieces and then compiled them into books. Silk used for writing is called paper. Silk is expensive and bamboo slips are too heavy for people to use.

4. Shang Yang Reform

During the Warring States Period, Qin Xiaogong, king of Qin, was determined to reform and recruit talents. Shang Yang entered the State of Qin from defending the country, and put forward a set of reform and innovation development strategies, such as abandoning mineral fields, attaching importance to agriculture and mulberry, rewarding meritorious military service, implementing unified quantity and establishing county system, which won his trust and made him a regular.

5. Unveil the layers of celestial bodies.

For a long time, the geocentric theory of Ptolemy, an ancient Greek astronomer, has dominated people's thoughts. Ptolemy believed that the earth stayed at the center, and the sun, moon, planets and stars all revolved around the earth.

Soon, Kepler analyzed the observation data of tycho brahe, and found that the planets move in elliptical orbits, and put forward three laws of planetary motion, which laid the foundation for Newton to discover the law of universal gravitation.