Sushi (sushimustwrite) wrote,

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Nerdity ahead

Last night I discovered that during certain times of the month I can see the moon just outside my window while lying in bed. It was a waxing crescent last night, and it distracted me while I was going to sleep because I kept gazing at it.

I saw the class banners in Evans this morning thanks to Alumnae Weekend, and it made me think of class colors mod 4. (Basically, a number c is congruent to b mod 4 if 4 divides c-b. Basically, if there's some integer k so that 4k=c-b. So 16 is congruent to 0 mod 4, 47 is congruent to 3 mod 4, et cetera.) If we assume that the colors have always alternated yellow, red, green, blue, then the blue class years are congruent to 0 mod 4, yellow to 1 mod 4, red to 2 mod 4, and green to 3 mod 4. If we think of this mod 2, the 0 mod 2 classes are sisters and the 1 mod 2 classes are sisters.

Wow, I'm such a nerd.
Tags: agnesspring2007, astronomy, math
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