[Lee Stewart]

The fastest object ever made by man was a manhole cover

When it comes to sheer speed, race cars, fighter jets, and space rockets have nothing on a round, flat hunk of metal normally found covering a sewer. It wasn't made to be a speedster but when an underground nuclear bomb test launched the four-inch thick steel disk at an estimated 125,000 miles per hour or 5 times the Earth's escape velocity, it became the winner. In contrast, the New Horizons spacecraft maxed out at 36,373 mph.