[This article was first published in Army Sustainment Professional Bulletin, which was then called Army Logistician, volume 3, number 2 (March–April 1971), pages 12–15, 42–43. The text, including any ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...