« Challenging Chopstick White Rice Jigsaw Puzzle | Home | Before the Iron Age, Most Iron Came From Space »

January 6, 2018

A Paper Sizes

A-series-paper-sizes-1

 

Handy.

 

Zzz

 

January 6, 2018 at 10:01 AM | Permalink


Comments

Once when I was younger I started thinking about how this handy format worked, since all paper sizes have the same ratio between the longer and the shorter side. I decided to calculate this ratio (googleing was too little of a challenge), and found that it is the square root of 2. Best wishes!

Posted by: Pippi | Jan 7, 2018 5:15:51 AM

Post a comment