More On Bubble Lights

July 24

So how do bubble lights work? They are made up of two important parts: a thin tube of liquid (usually methylene chloride), sitting on a larger base, where it rests on a lightbulb. As the base heats from the lightbulb, it creates a thermal difference between the liquid at the cool top of the tube and the hot bottom. This results in a pressure gradient that releases energy in the form of bubbles.