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In his ongoing study and obsession with metrology, Adam has been attempting to find his ideal recreation of Le Grand K, the object formerly used as the international prototype and standard for the measurement of a kilogram. He's finally found a kilogram cylinder that will suffice for his collection and builds the two-bell-jar display that famously houses the artifact in a vault outside Paris. Part of the "Adam Savage's Tested: One Day Builds" series.
