Chinese Class 3, US$10, Laser Pointer Test
3 years ago
58
High power laser pointer is still in favor here in Japan. It's not so expensive, JPY 1000 or around, and very effective to teach science, especially for the physics, such as Character of Light and the related. However, on the other hand, they say it's very dangerous to handle because of the strength of light. So this time I just conducted the simple test about the light strength with a popular Class-3 Chinese Laser Pointer.
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