This is heavy: The kilogram is getting an update

Until now, kilogram's mass has been defined by the granddaddy of all kilos: a golf ball-sized metal cylinder locked in a vault in France. For more than a century, it has been the one true kilogram upon which all others were based. Gathering in Versailles, west of Paris, governments are expected to approve plans to instead use a scientific formulation to define its exact mass.

from Times of India https://ift.tt/2RU6rnL