like for science whats the purpose of a black light
To find the secret door to Atlantis.Way down below the ocean ,where i wanna be she may be. Me and Joan Baez the beautiful will once again visit the magical land of Atlantis , found with a black light that The beatles used to find Meanie Jeanie blue something land .. Signed Donovan,way down below the ocean is where i want to be she may be
Some minerals like fluorite fluoresce or give off light when exposed to ultraviolet (black) light. It also shows polarity lIke polarized sunglasses. Some sea creatures also fluoresce under UV light.
To find **** stains in a hotel room.
It can help see substances that would otherwise be invisible.
