Sometimes it doesn't take much effort to solve one thing. As long as we grasp the essence of things, we can easily solve problems.

In jewelry stores, in order to prevent theft, jewelers often use bulletproof glass cabinets with hard texture and strong structure to store valuable jewelry. The magic of this kind of glass is that neither bullets nor hammers can destroy it.

So, is this glass flawless?

Of course not. A tuning fork can break it.

Tuning fork is a kind of metal fork, which can emit different frequencies when vibrating. Tuning forks with different lengths and thicknesses can emit different frequencies. As long as you choose a tuning fork with the same vibration frequency, a little disturbance can break the glass into pieces.

There is a similar phenomenon in the snow-capped mountains. For example, it may be just a trivial cry in the snow-capped mountains, which caused a lot of snow to collapse.

In this way, according to the perceived object, we use clever force instead of strong force, which is called tuning fork effect.

Is the old saying "four taels a catty" the same?

Wow; Alas ... the wrong questions used by children in their studies are used to record the wrong questions. Can the wrong question book also be called a "tuning fork" that can help us improve our grades?