Reaction Chemistry (Hey Little Ions) Cool Science: Restore Silver with Electrochemistry. Home Made Rocket Fuel... How to Make Potassium Nitrate at Home. Aerogels: Material Properties of World's Strangest Stuff. Aerogels were created the way a lot of awesome things are: with a friendly bet.
Scientists Charles Learned and Samuel Stephens Kistler wanted to see if one of them could replace the liquid in a jelly jar with gas without causing shrinkage. The result was aerogels, the world’s lightest known solid materials.