“These models showed the expanding and shrinking organ to be a marvel of hydraulic engineering.” The Atlantic’s M. Sophia Newman explains what engineers can learn from the design of the penis. (This is another confirmation of my longtime adage: If an engineer is working behind closed doors, knock before entering.)

+ Syndicated from Kottke: Mathematicians have calculated Pi out to more than 13 trillion decimal places, a calculation that took 208 days. NASA’s Marc Rayman explains that in order to send out probes and slingshot them accurately throughout the solar system, NASA needs to use only 15 decimal places. How precise are calculations with that number? This precise… (Maybe my wife should work at NASA. Earlier this week, she recited the first hundred digits of Pi from memory.)

+ “It’s great to be back in Beijing! I kicked off my visit with a run through Tiananmen Square, past the Forbidden City and over to the Temple of Heaven.” Mark Zuckerberg took a run in air-polluted China, and the Internet freaked out.

+ There’s a class action lawsuit against Starbucks because their Lattes use too much foamy milk. Maybe the people bringing this lawsuit should take a chill-pill. Or better yet, a Slurpee-Flavored donut from 7-11.