Hello Friends! What a boring name for a title, or so it may seem. Chemistry was required to hear the shot heard around the world in the Battle of Concord on April 19th, 1775 leading to the American Revolutionary War. Today, I will demonstrate a technique I use for such chemistry, the manufacturing of black…
via My Rock Tumbler! — Brother’s Campfire.
Most interesting use of this device I have come across so far.