Monthly Archives: January 2017

This Lichtenberg figure was made by shooting a beam of electrons (~2.2 million volts) through an insulator. The pattern is illuminated by blue LEDs. (Bert Hickman, Wikipedia Commons)
Lichtenberg figures are fern-like branching structures formed from an electrical discharge on or inside of an insulator. Like snowflakes, every Lichtenberg figure is unique – an intricate and beautiful natural work of art. Lichtenberg figures form naturally, sometimes in the skin of lightning strike victims, in lightning strikes into sand […]

Make a Lichtenberg Figure the Easy Way

Cobalt(II) chloride may appear either pink or blue in solution, depending on which ion is formed. (Chemicalinterest)
This color change chemistry project will give you a liquid that fluctuates between pink and blue as the temperature changes. In essence, it’s a color change thermometer. What You Need beaker or attractive clear container 3 g cobalt(II) chloride hexahydrate (also known as cobaltous chloride hydrate) 500 ml alcohol Prepare […]

Make a Color Change Liquid Thermometer

Pre-Columbian Peruvian mummy. (Emmanuelm, Creative Commons)
If you’ve ever seen a mummy in a museum, you might have thought the ancients went a little overboard with henna and other red dyes. While people have colored their hair practically forever, it’s more likely what you’re seeing is the change in hair color that occurs after a person […]

Your Hair Color Changes After You Die

Liquid smoke is a food seasoning that is made by passing smoke through water. Andrew Filer, Creative Commons License
Question: What Is Liquid Smoke? You may have used liquid smoke in a recipe or seen it on the grocery store shelf. Liquid smoke imparts a barbecued or smoky flavor to food. Here’s a look at what liquid smoke really is. Answer: Basically, liquid smoke is just what the name […]

What Is Liquid Smoke? Chemical Composition