Editor's note: Michael Hartl is the founder of Tau Day and author of The Tau Manifesto. He is also the author of the Ruby on Rails Tutorial, the leading introduction to web development with Ruby on Rails. Previously, he taught theoretical and computational physics at the California Institute of Technology, where he received the Caltech Lifetime Achievement Award for Excellence in Teaching.
Earlier this year, the admissions office of the Massachusetts Institute of Technology related an odd tale of a conflict over, of all things, a number.
They described "two warring peoples: the people of Pi, and the people of Tau," and proposed a compromise between the supporters of pi (the number 3.14…) and tau (the number 6.28…). As in previous years, MIT would announce its admissions decisions on 3/14, or "Pi Day," but this year they would also acknowledge adherents of tau by sending out their decisions at 6:28, or "Tau Time."
It was a noble attempt to broker a peace - and yet, the two tribes fight on. The truth is it's mostly my fault. Here's how it all happened.
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July 19thAtlas V launch of US DOD MUOS-2 satellite, notable for large "551" config of Atlas
Aug 3rdJapanese HTV-4 flight to ISS on cargo supply mission
Aug 14thSpaceX launch of Canadian satellite in the first launch from their new Vandenberg facility, and first launch of upgraded Falcon 9 v1.1 launch vehicle
Aug 28thDelta IV Heavy launch of NROL-65 spy satellite
SeptemberSoyuz TMA-08M flight returning Expedition 36 crew from ISS to Earth (Kazakhstan)
Sept 12thOrbital Sciences maiden flight of Cygnus cargo vehicle on Antares rocket to ISS
Sept 25thSoyuz TMA-10M flight launching Expedition 38 crew to ISS
Dec 9thSpaceX Dragon launch by Falcon 9 v1.1 on CRS-3 cargo supply mission to ISS
recurringfirst powered test flights of Scaled Composites' SpaceShipTwo commercial vehicle, to be used by Virgin Galactic for sub-orbital tourism