Turn your Smartphone into a body fluid-detecting black light using household items...

Turn your Smartphone into a body fluid-detecting black light using household items – although you might regret it

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If you’ve ever wanted to know how much semen there is in a room that looks clean, there’s a simple trick to turn your smartphone into a black light.

All you need is Sellotape and two Sharpie pens.

This should work for just about any smartphone, provide it has a flash.

Black lights or UV lights are used by crime scene investigators to identify body fluids – including semen, sweat, saliva and urine. Semen happens to glow the brightest because of its particular mix of chemicals.

This is because bodily fluids fluoresce – that means they absorb ultraviolet light and re-emit it as visible light.

To create the semen-detecting tool, you need to take your phone and cover the flash with a small piece of sticky tape. Colour over the tape with the blue Sharpie pen.

Then add a second piece of tape over the top, colouring it in with the purple pen.

Then you need to turn on your flashlight app, et voila! You have a body fluid tracking tool.

Sorry about that.

Source: mirror.co.uk

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