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Mark your calendars: The next TEDxCaltech will take place on Friday, January 18, 2013.

"Turbulence is everywhere," says Beverley McKeon—from continent-spanning weather systems down to the swirls of air your car leaves behind itself as you drive. "I think about things like ships, planes, and pipelines," she explains, noting that about half of the energy consumed by each of those three transportation systems goes to counteract turbulence-induced drag.

"I grew up cooking, waiting tables, and doing dishes in the family diner in Chicago," says Jonas Peters. These days, as Caltech's Bren Professor of Chemistry, Peters is more an executive chef than a spatula jockey: he coordinates the menu and helps dream up the recipes for new molecules, but his students whip them up and wash the glassware.

Were dinosaurs slow and stupid, as used to be the prevailing wisdom, or nimble and smart enough to eat an attorney, as in the 1993 film Jurassic Park? The answer depends largely on whether the T. Rex in question is cold blooded, like an alligator, or warm blooded, like a bird. 

Caltech’s 118th annual commencement ceremony took place on Friday, June 15, 2012, at Beckman Mall. Technology entrepreneur Elon Musk, founder and chief executive officer of Space Exploration Technologies (SpaceX) and Tesla Motors, and the chairman of SolarCity, presented the keynote address.