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Archive for July, 2010

Blog &Tech | 25 Jul 2010

Chance Encounter with an Unusual Tricycle

Driving down the highway yesterday I passed a man riding a sufficiently unusual device that I pulled my car off the road and walked back along the shoulder to investigate.  The man turned out to be John MacTaggart, the CEO of Pterosail Trike Systems, and he is in the process of riding one of his company’s [...]

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Physics &Science &Video | 21 Jul 2010

Introduction to the Holographic Principle

Inspired by a conversation with a friend, and my growing interest in Erik Verlinde’s entropic construction of gravity, here is a video of Raphael Bousso of UC Berkeley giving a fairly non-technical lecture explaining the holographic principle.  Dr. Bousso does a good job of building up to concepts like Planck length and Schwarzschild radius (a [...]

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