This Guy Takes 2 Sharpies and Colors The Flash On His Smartphone. The Result Will Amaze You!
With just two permanent markers, one blue and one purple, and some Scotch tape, you can create a germ finder out of your camera. Simply place the scotch tape over the flash on your phone. Color the light with a blue Sharpie and allow the ink to dry. Layer another piece of tape over the blue and color again with the same marker. After another piece of tape, color with the purple Sharpie, and your black light is ready for use in any completely dark area.
The long wave ultraviolet light emitted by this contraption allows for the observation of fluorescence. The colored glow radiates from many substances when exposed to UV light, and can be used for a plethora of things. Artistic lighting effects, medical diagnosis, detecting fluorescent dyes, identifying counterfeit currency, authentication of paintings, curing plastic resins, attracting insects and hunting rocks are all practical applications of a black light.
The low power UV light is not harmful to the skin or eyes, but powerful UV sources do require protective equipment, such as goggles or gloves. The non-threatening version of UV light can illuminate skin diseases as well as fungal and bacterial infections.
Manufacturers often add fluorescing compounds to poisonous substances to allow it to be detectable by black lights if an individual is poisoned. Different substances glow various colors, and therefore can be identified with the shining of the darkened light. Check out what you can find with your own black light camera!
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