kilograms have been redefined after nearly 130 years ‘The extra accuracy will be a boon to scientist’ – The wait is finally over, after nearly 130 years the kilogram was first defined by a lump of metal in a vault…
kilograms have been redefined after nearly 130 years ‘The extra accuracy will be a boon to scientist’ – The wait is finally over, after nearly 130 years the kilogram was first defined by a lump of metal in a vault…