5 FACTS: Bubbles
April 24, 2019 by Wonder Science
When packed together in a foam, bubbles meet in groups of four and join along flat walls intersecting at roughly 109-degree angles.
Bubbles running through thin tubes have been used like electrons running through a wire to build a computer.
A bubble consists of three layers: two layers of soap clinging to either side of a layer of water.
Light that hits the different layers interferes with itself, causing colorful iridescence.
A bubble always attempts to form a sphere because surface tension pulls the liquid inward.