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Facts Friday

This week's Facts Friday Lindsay shares a fact from ThoughtCo.

Cat urine glows under ultraviolet light, mostly because it contains phosphorus. “Phosphorus glows yellowish green in the presence of oxygen, with or without black light, but the light imparts additional energy that make the chemiluminescence easier to see. Urine also contains broken down blood proteins that glow under a black light.”

Source: https://www.thoughtco.com/why-urine-glows-under-black-light-609449

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