If humans were to make contact with aliens and compare systems of units, says physicist Stephan Schlamminger, “we’d be the laughingstock of the galaxy.”
To set things right, metrologists — a rare breed of scientist obsessed with precise measurements — are revamping the system. Soon, they will use fundamental constants of nature — unchanging numbers such as the speed of light, the charge of an electron and the quantum mechanical Planck constant — to calibrate their rulers, scales and thermometers.
Read the article.. www.sciencenews.org/article/units-measure-are-getting-fundamental-upgrade
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