Linklist: June 27, 2012

Time: Physics of the Love Parade Stampede Dirk Helbing on the stampede.

AT sends me to OpenPlans: Visualizing urban accessibility with OpenTripPlanner Analyst [These are what we call mobility maps, but are nice nonetheless, see .]

Alexis Madrigal @ The Atlantic: The Mechanics and Meaning of That Ol’ Dial-Up Modem Sound

[I well remember the mating calls of modems in love from my days working at Hayes Microcomputer Products, when 2400 baud was high speed.]

I am just a Bill on Capitol Hill

I rewatched Schoolhouse Rock with my kids last night. I had not realized that the Bill, sitting on Capitol Hill, was in fact a bill to make school buses stop at railroad crossings. I don’t know if this is an actual federal law, or there is some federal monetary incentive to ensure states pass such laws, (Spoilers: in the cartoon, it is in the end passed), but it is a state law almost everywhere.