carbon

How to Clean Your Camera Lens with Candle Soot

Camera lens cleaning pens use fine carbon particles to help cleanly remove smudges from your glass. Do you know what else has carbon particles? Soot. Here's a short 2.5-minute video in which photographer Mathieu Stern shows how you can use ordinary candle soot to get the same cleaning power as popular lens pens.

Your Future Camera Might Be Powered by Hemp

In an interesting development in the world of batteries, researchers have discovered and demonstrated a way to make extremely efficient carbon electrodes by heating up the fibers of hemp in a two-step method.

The resulting carbon electrodes hold as much energy as the super-material graphene, are more durable in extreme temperatures, and come at a much lower cost -- pretty much the ideal material to make batteries out of.