and all that crushing of cans has formed a little seltzer-shaped hole in my budget. Luckily, sparkling water is easy to make at home and countertop carbonators have become pretty cheap to buy.

His site – a wonderful, dense demonstration of the beauty of “web 1.0” – walks through the basics of carbonated water, discusses CO2 tanks and gauges, and shows how to build a simple ...

As the carbon dioxide is produced, you can see bubbles grow and float to the surface of the water. You may even be able to hear the bubbles as they pop. Let’s see how you can make the fizzing reaction ...