Use a powerful laser pointer to burn?
Laser burning requires 200mW or more of energy to generate enough heat to ignite a match or burst a balloon, so they are also very bright. For this reason, you should always use safety glasses to protect your eyes from specific frequencies of light or the color of the laser you use. You need to think carefully when using lasers in or around reflective glass.
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Experiments show that the Laser pointer can burn a match within one second. The match head is mainly composed of chemical substances such as red phosphorus and potassium chlorate. It is ignited by the high temperature generated by friction, and its ignition point is about 250°C. It shows that a small laser pointer can generate a huge amount of energy, so use it with caution.
2021-10-11 11:59:35
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