How the Sun works: Fusion and Quantum Tunneling

Now that you know about the sun, do you want to learn about quantum tunneling? http://bit.ly/p7l3gv

Sorry I'm late - I was busy working on freddiew's new video: http://bit.ly/n73Uwj

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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
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https://www.youtube.com/watch?v=gS1dpowPlE8