Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication.

During a trip to Fort Watauga at Sycamore Shoals State Historic Site, I came across a group of people just outside the fort gates tapping, grinding and hammering on stones. They were learning and ...

It's several times sharper than surgical steel and has an iridescent beauty that masks its use as a deadly tool. It's obsidian — a hard, dark volcanic glass used for thousands of years by American ...