Ramp Test Run

That steel ruler ramp was begging for a proper test run! I marched over to the edge of the rug and hauled an empty wooden thread spool with both gloved hands. Right at the finish line, I propped an upright red domino against a thick cork coaster. Then I bounded behind the high end of the ruler and gave the spool a sharp shove! Whirr! The wooden spool zipped down the steel incline, shot across the textured wool, and struck the domino with a crisp clack! The domino tipped over cleanly, locking the rolling spool right into the coaster notch. Dead stop! Perfectly calculated!