A Kilogram Is Now a Kilogram—Forever | SciShow News

A Kilogram Is Now a Kilogram—Forever | SciShow News

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Interactive Video

Science, Physics, Chemistry

11th Grade - University

Hard

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The video discusses the redefinition of the kilogram, which was previously based on a physical object known as Le Grande K. Scientists have now tied the kilogram to Plank's constant, ensuring a stable and universal standard. This change was made possible by the kibble balance, a device that measures mass in terms of energy. The video also explores a study on the genetic basis of taste sensitivity, particularly bitterness, and its impact on coffee consumption. The study found that people more sensitive to caffeine's bitterness tend to drink more coffee, suggesting a complex interplay between genetics, taste, and behavior.

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OPEN ENDED QUESTION

3 mins • 1 pt

What new insight or understanding did you gain from this video?

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