How Blacklights Work- The physics behind the glow

Discussing the physics of how blacklights work; the difference between luminescence, fluorescence, and phosphorescence; and debunking the idea that you can "hack" your iPhone flashlight into a blacklight. Spoiler- no, you can't. 0:00 Intro 1:16 The Spectrum 6:16 Blacklights 10:30 True Blacklights 14:45 Incandescent Blacklight? 16:48 The Color White 19:00 Glowing Things 23:27 iPhone Hack