Learn how to think with Brilliant for 20% off by being one of the first 200 people to sign up at http://brilliant.org/HAI

Get a Half as Interesting t-shirt: http://bit.ly/2xjHuw4

Suggest a video and get a free t-shirt if we use it: http://halfasinteresting.com/suggest

Follow Half as Interesting on Twitter:   / halfinteresting  

Discuss this video on Reddit:   / halfasinteres.  .

Check out my podcast with Brian from Real Engineering:
http://apple.co/2ydYZOd (iTunes link)
http://bit.ly/2gyeFle (YouTube link)

Check out my other channel:    / wendoverproductions