Sunday, April 22, 2012

Physics

I had the chance to help a student who was in my class a couple of years ago. In the process I developed some additional notes on electric and magnetic fields and electromagnetic waves. If you want a copy let me know.

Given the title of this post, I know that only the real believers are reading this so I'll let you know that I have almost reached the point where I feel comfortable about why the Hubble constant doesn't yield true faster than light relative velocities. I am still not sure how to explain the "fact" that a star whose light took 12 billion years to reach us can be thought of as 43 billion light years away from us at this time.

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