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In Adam Savage's Tested: One Day Builds--Adam Replicates the Perfect Kilogram Standard, Adam Savage explores metrology, the science of measurement, while recreating Le Grand K, the historic French kilogram standard. The video explains reference standards, calibration, traceability, tolerances, and why modern mass measurement is now defined by physical constants rather than a metal artifact. Alongside the history of the kilogram, the build demonstrates machining, precision tools, lathe work, bell jars, and design problem solving. This maker-focused STEM video supports curriculum connections in physics, mathematics, engineering, and scientific measurement by showing how standards, accuracy, and human agreement shape modern science.
