Just some odds and ends in honor of Valentine’s Day…

- In the prologue of this week’s
*This American Life,*a Harvard physicist discusses how he and colleagues used the Drake equation (usually used to estimate the number of detectable extraterrestrial civilizations in the galaxy) to estimate the probability that they would be able to find girlfriends. - For Valentine’s Day, I usually help my kids make cards by finding cool images online and printing them on card stock. My son loves math, so we looked for some math-themed heart images. He chose this Sierpinski valentine image from xkcd:

- Valentine’s Day for Math Nerds