The Special Design That Makes Library Books Indestructible

Start learning complex topics simple for 20% off by being one of the first 200 to sign up at http://Brilliant.org/HAI

Get a Half as Interesting t-shirt: https://standard.tv/collections/half-...
Suggest a video: http://halfasinteresting.com/suggest

Follow Sam from Half as Interesting on Instagram:   / sam.from.wendover  

Follow Half as Interesting on Twitter:   / halfinteresting  

Discuss this video on Reddit:   / halfasinteresting  

Video written by Amy Muller

Check out our other channels:    / wendoverproductions  
   / jetlagthegame