In 2023 every U.S. land surveyor will finally be on equal footing. One kind of foot, specifically: the “international foot.” These engineers have long measured land with two versions of the unit, ...

For decades, U.S. metrologists have juggled two conflicting measurements for the foot. Henceforth, only one shall rule. This is a foot. This is also a foot. But one foot is a tiny bit shorter than the ...