Galileo's experiment of "two iron balls landing at the same time" at the leaning tower of Pisa overthrew Aristotle's theory that light things landed slowly for many years.

2. Bruno-Exposing religious ignorance

Bruno, a natural scientist who shouted for the truth, ignored the ban of the church and boldly exposed religious ignorance. Bruno enthusiastically propagated materialism and atheism everywhere, spread Copernicus' theory to the whole of Europe, and made him the staunchest and bravest fighter against the church and scholasticism.

3. Huygens-Questioning particle theory

Newton thought that light was a particle flow, but Huygens held a different view. He believes that particle theory can't explain more complicated phenomena such as diffraction and interference, and advocates that light is an etheric wave. With the deepening of research, by the beginning of19th century, wave theory had defeated particle theory.

4. External Cartel-Questioning Meridian Geometry Theorem

In his research, the German mathematician Schuhuaikate questioned a theorem in Olgilvy's Principles of Geometry: the sum of the internal angles of a triangle is equal to 180. In the end, German mathematician Riemann was inspired by Karl's external thoughts, which made the non-Euclidean set break ground. Riemann pointed out that Euclidean geometry does not apply to all spaces. For example, on the earth sphere, the sum of the internal angles of the triangle is greater than 180.

5. Zhong Nanshan-Questioning SARS

When SARS first came out, many domestic medical authorities thought it was chlamydia virus, but Academician Zhong Nanshan found something else. He boldly questioned and insisted on his point of view many times, which made great contributions to the rapid diagnosis and treatment of patients at that time.