4 ms·

I stumbled upon a very interesting short documentary about the metric system and the world's roundest object. Well worth 10 minutes of your break today. http://

by ozh 12y ago

I stumbled upon a very interesting short documentary about the metric system and the world's roundest object. Well worth 10 minutes of your break today. http://www.youtube.com/watch?v=ZMByI4s-D-Y http://www.youtube.com/watch?v=ZMByI4s-D-Y