The Silver Straightedge

A fresh sliver of morning daylight sliced under the garage door, spotlighting an aluminum straightedge ruler dropped flat on the gray floor! I revved straight out from behind the toolbox caster wheel and hit the epoxy in a clean burst of speed. The concrete was slick, but the metal ruler was pure uninterrupted track! I banked sharply, lined up my axles, and launched all four wheels onto the brushed alloy spine. Zzzzz-click! My tires sang with a crisp metallic buzz as I ripped down the etched millimeter line from end to end, coasting off the far tip into a warm patch of sun with zero drag!