I've been doing some long transit-accessible hikes as a way to get to know the Bay Area again after 10 years away. It's fun to put together routes that often aren't single trails, because with the exception of the SF crosstown trail (which I recommend!) most single trail hikes are either way too long or… Continue reading Sausalito -> Embarcadero 9/22
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Photos 9/22
Some expired Ilford 400 film: Framing trees is hard! Finally got one that I sort of like Squirrels ate the actual flowers, so we get this replacement.
Photos 8/22
Portra 800 The following are from the SF Crosstown Trail which is really worth it if you want to devote a full day to an urban hike. If you don't have a full day, the first two sections are great for exploring parts of the city that aren't really in the guidebooks. RIP Candlestick Visitacion… Continue reading Photos 8/22
Walking ’round the block
The New York Times recently made a map of every building in the US. I decided to see how round they were: And here is a higher quality pdf. To define a building's 'roundness', I calculated the asphericity, which is equal to 0 for a perfectly spherically or circularly symmetric set of points, and is… Continue reading Walking ’round the block
Research Overview
Research Overview I am interested in the collective behavior of self propelled colloids. Self propelled particles are fascinating examples of how non-equilibrium behavior can be used to perform useful tasks. In biology, self propelled particles exist at all length scales, from animals like starlings whose fancy flights inspire awe, to motile bacteria like E. coli… Continue reading Research Overview
Joseph Harder 
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