Air Force Basic Training Timeline At a Glance. Schedules & Timelines - Air Force 8.5 Week BMT. You'll begin your career in the Air Force with Basic Military Training (BMT). You'll work hard and be challenged, as you stretch yourself and discover that you're capable of more than you ever thought possible. And when you're finished, you'll know that you're ready for anything that life can throw at you.
Brimstone (man now calls it sulfur/sulphur) is a lemon-yellow colored stone. Brimstone means, burning stone or, the stone that burns.. At left is a picture of brimstones and powdered brimstone.
Brimstone is an old-fashioned name for sulphur, which is a bright yellow coloured element. The Brimstone butterfly is so called because it is a similar colour. The female is much more pale in colour than the male, and in flight could be mistaken for a Large white butterfly.