If money is only valuable when we believe in it, how much is a bitcoin actually worth? Jonathan explains the virtual currency as well as how to mine it and the risks involved in investing.
Whether the topic is popcorn or particle physics, you can count on the HowStuffWorks team to explore – and explain – the everyday science in the world around us on BrainStuff.
Download the New TestTube iOS app! http://testu.be/1ndmmMq
Watch More BrainStuff on TestTube http://testtube.com/brainstuff
Subscribe Now! http://www.youtube.com/subscription_center?add_user=brainstuffshow
Watch More http://www.youtube.com/BrainStuffShow
Twitter http://twitter.com/BrainStuffHSW
Facebook http://facebook.com/BrainStuff
Google+ http://gplus.to/BrainStuff
