or the metre Try CuriosityStream and learn something new today: http://curiositystream.com/smart ↓ More info and sources below ↓ Why is a meter a meter? The meter is the world's ultimate...
========== This is a meter. But it’s not THE meter. The meter isn’t a physical object, locked
away in a secret vault somewhere. The meter is a math problem. Take the distance light travels in one second
and cut it into this many chunks, that’s how we define a meter. But why that number? Why not this many chunks? Or this many? It’s the fundamental unit of the metr-ic
system, a unit built into the very foundations of physics, so surely something in the basic
laws of the universe explains why a meter is… a meter. But that’s not the case. The real story is full of discovery, deception,
and a lot of people getting their heads cut off. [OPEN] 1789. The French people have a lot of problems with
the monarchy, and now Louis was gonna hear about it. In thei...