For those times when you could really use a quick 3D model, this metric screw generator will do the trick for screws between M2 and M16 with matching nuts and washers. Fastener hardware is pretty a… ...

This object was intended to be a standard for weighing things, part of a weights and measure system being developed in France, now known as the metric system. The object's weight was 1 kilogram.

Turns out it’s not that simple. According to Marciano, there was a window in the mid-1970s when America was totally primed to go metric. President Ford signed an order, even. Elementary school ...

While most nations use the metric system—those units of decimals that are universally employed in science—the U.S. still clings to pounds, inches, and feet.

Here's another case in point: In a new post-Brexit Britain, the metric measurement system — in use for decades almost worldwide — could be under threat, as some Britons are pushing to ditch it ...

One inch equaled three barleycorns. And another customer in the market, Bob Burns, preferred the metric system for professional reasons. “I am an engineer,” he said.