The pronunciation of bees depends on the vibration of wings-this is a biological "common sense" contained in China primary school textbooks, but it was overthrown by a 12-year-old pupil named Nie Li. Nie Li's paper "Bees Flapping Their Wings Without Singing" won the Silver Award in the National Youth Science and Technology Innovation Competition and the Gao Shiqi Special Award for Popular Science.

This scientific discovery comes from a pupil who is only 12 years old. It's really commendable! A natural mystery that countless biologists have not discovered, little Nelly discovered; Nelly overturned the "conclusion" from books that adults never doubted.

The People's Daily reported that Nie Li's discovery process was not complicated: at first, she happened to find that the bees whose wings were not vibrating (or whose wings were cut off) were still buzzing, and then she observed them with a magnifying glass for more than a month and finally found the vocal organs of the bees.

Like many major scientific discoveries, the discovery process itself may not be tortuous. The key is whether the discoverer dares to question the "conclusion" and challenge the scientific authority. Nie Li's spirit of deviance and suspicion is more valuable than the discovery of "the vocal organs of bees".

Galileo challenged Aristotle's "Leaning Tower of Pisa Experiment" about the falling of heavy objects.

Galileo made an experiment with two iron balls with different weights on the leaning tower of Pisa, and came to a conclusion: when an object falls freely, it will not show different speeds because of different weights.

Aristotle believes that the speed of falling from a height is directly proportional to the weight of objects with different weights, and the heavier ones must land first. This conclusion was almost 2000 years before Galileo's arrival, and no one had publicly doubted it. Does the speed of falling objects have anything to do with weight? After repeated observation, research and experiments, Galileo found that if two objects with different weights were dropped from the same height at the same time, they would land at the same time. So Galileo boldly challenged Aristotle's view.

Galileo put forward a brand-new idea: if objects with different weights are subjected to the same air resistance, they should fall from the same height and land at the same time.