Editor’s note: This is part four of an ongoing series about the author’s “colossal mistake.” You can read part one here, part two here, and part three here.
There are certain things you should never see sitting outside, bathed in sunlight and fully exposed to the elements. A baseball signed by Babe Ruth. Leonardo da Vinci’s Codex Leicester sketchbook from the early 1500s. The actual, original U.S. Constitution. And—especially—your airplane’s pistons and crankshaft.
