For those of you not familiar with black lights … they have the capability of making visible, which you cannot see with naked eyes.
Counterfeit bills can be easily detected with a black light. Plastic security threads will appear under UV light in legitimate bills, and will glow different colors depending on denomination.
For instance, a $5 bill will be blue, a $20 bill shows up green and a $100 note glows pink.
Forensic investigators also use black lights in crime scenes. Black lights can even show bacteria and germs that you wouldn’t normally be able to see.
A clever YouTuber recently posted a video that shows how you can make your own black light out of your smart phone. All you need is a smart phone, some clear tape, and two sharpies: one purple and one blue.
To start, put some tape over the flash on your phone and then take the blue sharpie and color over the tape. Once the sharpie dries, apply another piece of tape over the flash to get the necessary opacity, color over the tape again with the blue sharpie.
Once the second layer of tape has dried, place the third piece of tape over the flash and color over it with the purple sharpie.
Now all you have to do is turn on the flashlight option on your phone in complete darkness and take a glimpse at surfaces you have always assumed as clean.
The bathroom might just shock you.
Awesome? Share this with your family and friends.