I don't know how it works, but it DOES.
A black light, sometimes called a UV-A light or ultraviolet light, is a lamp that gives off long wave (UV-A) ultraviolet light and very little visible light. The lamp has a violet filter material, either on the bulb or in a separate glass filter in the lamp housing, which blocks most visible light but still lets the ultraviolet light through so the lamp has a dim violet.
Most of us have seen these either on TV when detectives are looking for evidence of some sort that cannot be seen through regular lighting or at a club where it makes our clothes glow in the dark.
In this video, this guy is going to show you how to make your own blacklight with your phone!
A black light, sometimes called a UV-A light or ultraviolet light, is a lamp that gives off long wave (UV-A) ultraviolet light and very little visible light. The lamp has a violet filter material, either on the bulb or in a separate glass filter in the lamp housing, which blocks most visible light but still lets the ultraviolet light through so the lamp has a dim violet.
Most of us have seen these either on TV when detectives are looking for evidence of some sort that cannot be seen through regular lighting or at a club where it makes our clothes glow in the dark.
In this video, this guy is going to show you how to make your own blacklight with your phone!
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