Behold! The ultimate scientific experiment that flat-earthers have been hiding from us all along—a spirit level on dirt. Because clearly, if this 3-inch plastic tool shows a bubble in the middle, the entire 24,901-mile circumference of Earth must be flat! Next up: proving the ocean isn't wet by staying dry in your bathtub. The beauty of this "proof" is its elegant simplicity—just ignore pesky things like gravity, curvature mathematics, satellite imagery, and literally every astronaut who's ever existed. But hey, who needs centuries of scientific consensus when you've got a $2 hardware store purchase?