Redefining the kilogram | Tomorrow Today - The Science Magazine | DW | 25.01.2019
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Tomorrow Today

Redefining the kilogram

We use the kilo in everything from laboratories to home kitchens. Exactly how much it weighs is defined by the International Prototype Kilo. But it seems to have a weight-loss problem. How will we define what a kilo is in the future?

Watch video 04:40