Stuff To Blow Your Mind

Stuff To Blow Your Mind

Deep in the back of your mind, you’ve always had the feeling that there’s something strange about reality. There is. Join Robert and Joe as they examine neurological quandaries, cosmic mysteries, evolutionary marvels and our transhuman future on Stuff To Blow Your Mind, a podcast from HowStuffWorks.com.... Show More
August 20, 2013 29 min

Walls:Civilizations surround themselves in walls. They raise walls against enemies, against the environment and against the spirit world. In this classic episode, Robert and Julie examine walls, from Ming Dynasty battlements to the galactic borders of our universe.

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