SINGAPORE — A kilogram is hard to fathom. It is a unit of mass, but humans can only sense force and not mass, hence the frequent confusion between mass and weight, which is a type of force, said Mr ...

As you stand in the produce aisle of the local grocery store weighing bananas, few have wondered exactly how we come by the pounds, kilograms, ounces, and grams that are used to measure the weight of ...

How much is a kilogram? 1,000 grams. 2.20462 pounds. Or 0.0685 slugs based on the old Imperial gravitational system. But where does this amount actually come from and how can everyone be sure they are ...

The U.S. National Institute of Standards and Technology called this Friday a “turning point for humanity,” even though the difference between this day and the day before weighs, theoretically, nothing ...

A kilo is a kilo is a kilo, right? Wrong. Monday marks World Metrology Day, and this year's edition sees a big change in the way the kilogram unit is defined. Other WRAL Top Stories In November last ...

It’s the end of an era. After 130 years of faithful service, the so-called “prototype kilogram” upon which nations base their weight measurements was just replaced by a new standard based on ...

An ounce is an ounce, and a kilogram is a kilogram, but how are these units actually measured? How do your scales know how much a pound or a gram weighs? Since 1889, the kilogram’s definition has been ...

Wrong. Monday marks World Metrology Day, and this year’s edition sees a big change in the way the kilogram unit is defined. In November last year, scientists and policy makers from around 60 nations ...