Experiment: Controlling Flowing Smoke Like Water

Smoke is a gas, which tends to fly upward and disperse because they are lighter than air. Leaving the smoke straight down, it needs to be thicker than air.

Key Facts About Smoke

John Holland and Jarvis Harris, two researchers at Harvard University, found a way to control smoke, making them actually flow down like a still water by keeping smoke molecules in the tube, they will be cold and denser.

See the smoke flowing like a waterfall in the following video:

The experiment shows that we can completely control, control and adjust the smoke to make them a "peaceful" stream.