Although laser pointers are relatively common, many people still don't know much about laser pointer. What is a laser pointer? Many stationery stores around campuses can buy a toy called laser pointer. Because laser pointers can emit beautiful beams ...

As a kind of teaching tool, laser pointer is relatively common. So, how much does the laser pointer cost? Laser pointers are more common in our daily lives, especially the light it emits is very attractive, and some children even use it as a toy. So, ...

The laser pointers that many people played with when they were young have recently appeared in the "Jianghu" again. I don't know if you paid attention to it. So, does the laser pointer have radiation? Does the laser pointer radiate? Nowadays, with th ...

Many people like to play with laser pointers very much. What are the hazards of laser pointer? Laser pointers are relatively common in life and have a wide range of uses. They do not actually have writing functions. They only have a similar shape to ...

Laser pointers have become a relatively common school supplies. What are the uses of laser pointer? We often see laser pointers in our lives. The emergence of laser pointers can be said to have reduced a lot of work burdens for many people in many in ...

Nowadays, many people are particularly curious about laser pointers. How far can the red laser pointer shine? Laser pointers are particularly fascinating for many elementary and middle school students because of their luminous effect and the far-reac ...

When many people use the laser pointer, it is easy to dazzle their eyes accidentally. Can the laser pointer recover from the eye injury? In daily life, students have many channels to access laser pointers, such as laser pointers used by teachers for ...

There are many elementary and middle school students who like to play with laser pointer. How harmful is the red laser pointer? In many middle and elementary schools, there are many small supermarkets or stationery stores outside the school. Red lase ...

We must first determine what we mean by the problem. Because light will not stop spreading. The more interesting question is how far away we can see the reflection of the laser pointer under ideal conditions. In complete darkness, when it shines on a ...

Within one microsecond of the laser pulse passing, the air ionizes and the beam cannot continue. Since the formation of plasma takes one microsecond, an interesting application is to form a short-lived ionization path in the air to conduct lightning. ...