How to explain this?

OK, this is related to [speed]!

Lightning is light!

The speed of light is 300,000 kilometers per second! What is a kilometers? Let’s talk about this later!

The speed of the sound?

Basically, the sound is more than 300 meters in the air for one second!

Therefore, the speed of lightning can be much faster than that of sound!

So, we first see lightning and then hear thunder!

Oh, as for what is [speed! What is [second]?

You will have a chance to learn this in the future!”

Li Chenghua said: "Of course, there is no Dragon King in the sky? Of course, there is no land master underground!

Then, why does the land move?

Strictly speaking, this is called an earthquake!

What is an earthquake?

In simple terms, it is that the earth has caused a violent shock!

From a scientific point of view? That is a kind of vibration generated when underground plates squeeze and collide with each other!"

“…”

Hearing Lee Seung-hua say this?

All the students from the Imperial College were confused again!

Tang Bohu blinked and asked, "Then Brother Li. What is a section?"

Li Chenghua explained with a smile: "What is a sector?

Look at such a vast land...
Chapter completed!