**#BAFact: To scale, if the Earth/Sun distance were one inch, a light year would be exactly one mile.**

A little bit of fun math for you: if you made a scale model of the solar system where the distance from the Sun to the Earth were one inch, then a light year in the model would be almost precisely a mile in the real world. How cool is that?

I do the math here: http://blogs.discovermagazine.com/badastronomy/2012/06/18/bafact-math-give-him-an-inch-and-hell-take-a-light-year/

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- +Adam Carmichael, don't forget about http://xkcd.com/1047/Jun 18, 2012
- Philip has successfully blown my mind once again. Thank you sir!Jun 18, 2012
- Dear Phil, what is an inch? Is that one of those ancient measurements like a cubit or a furlong?Jun 18, 2012
- An inch is what a centimeter measures if it eats too much fast food.Jun 18, 2012
- I just googled "AU mile in light year inches" and it replied "1 Astronomical Unit mile = 1.00190273 light year inches". So, correct you are. :-)Jun 19, 2012
- Hey, +Philip Plait, maybe that relationship could be used as the starting point for some sort of Golden Rule for determining inhabitable planets...Jun 19, 2012