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Thursday, August 24, 2017

Runaway Runways - 8/24/17

I was intrigued by an article I came across the other day about airport runway numbers being changed in Las Vegas and Seattle due to shifts in the earth's magnetic field. Although I knew that the earth's magnetic north pole isn't found right at the top of its rotational axis, and that it shifts over time, I hadn't really thought about how those changes could affect navigation. If you're interested in how all this relates to runways, today's California puzzle will provide some education:

Runways Of The World Unite!!!

And just because I think it's cool, check out this satellite view of a "cemetery" in Tuscon, AZ.  Zoom out and look up to the northwest for even more of it.

Tomorrow we'll ...

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