Inside the Humble Tape Measure

The tape measure is one of the most underappreciated tools that we use in our everyday lives. When you see what s inside of its shell, you ll never look at one the same way. It s fascinating! MACHINES: HOW THEY WORK Thursdays 10/9c on Science http://www.sciencechannel.com/tv-shows/machines-how-they-work/ Subscribe to Science Channel: http://www.youtube.com/subscription_center?add_user=sciencechannel Check out SCI2 for infinitely awesome science videos. Every day. http://bit.ly/SCI2YT Download the TestTube app: http://testu.be/1ndmmMq