This is not a video trick. This person is pouring a transparent liquid, which, all of the sudden, turns black. It’s the magic of chemistry, Mr White. The reaction above is called the iodine clock reaction, which is a classic demonstration of chemical kinetics. But there are others, more complex and cooler than this.
The Belousov-Zhabotinsky oscillating reaction
Watch the full video here.
The Briggs — Rauscher oscillating reaction
Watch the full video here.
Iodine clock reaction
Open a portal to hell and summon a demon reaction*
Watch the full video here.
*Anyone knows how this one is technically called?
Got any other favourite reaction? Post it in the comments.