Wouldn’t it be cool if you could have your own soda fountain at home? [Kedar Nimbalkar] thought so, and built a soda fountain that you can install right inside a fridge. The system is based ...

Or at least, that's how it used to be. Before home-use soda machines became mainstream, you couldn't get that straight-from-the-fountain flavor or those iconic bubbles without leaving the house.

The carbon dioxide molecules collect on these places and form bubbles which rise to the surface. Make a Mentos-and-Soda Fountain! There is a pretty cool thing you can do with a bottle of soda pop and ...