Uno Dos of Trace: Scientists Are Eliminating the Kilogram! So, What Happens Next?

Trace wears scarfs around his shoulders and talks. Caption: We are here, today, to lay to rest the kilogram.

Hidden in a vault outside Paris, vacuum-sealed under three bell jars, sits a palm-sized metal cylinder known as “Le Grand K.” Forged in 1879 from an alloy of platinum and iridium, it was hailed as the perfect kilogram—the gold standard by which other kilograms would be judged. However, it is wasting away, and scientists are scrambling for a more reliable standard. Part of the "Uno Dos of Trace" series.

(Source: DCMP)

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  • Uno Dos of Trace: Scientists Are Eliminating the Kilogram! So, What Happens Next?

    Type:
    Video
    Format:
    Streaming
    Accommodations:
    English Audio Descriptions - Visual, English Captions - Auditory
    Languages:
    English
    License:
    OER
    Author:
    Trace Dominguez
    Length:
    6 minutes