Guest Post: How the Bolivian Navy Became Landlocked

Cassandra wrote a post about the landlocked Bolivian navy in which she explained, in passing, that Bolivia once had a coast but lost it to Chile in the War of the Pacific.  One of the comments on that post, by guest poster Nick Suntzeff, was a post in itself and we thought you’d like to […]

Guest Post: That Eternal Question

One evening during a recent visit to Santiago, Chile, I went to dinner with two colleagues. Afterward, as I descended the stairs of the Metro to cross Providencia Avenue, I saw a young girl, no more than five years old, wrapped in a dirty blanket, sitting on the ground. She was holding out a shoe […]

Guest Post: Not So Fast

The news of a detection of faster-than-light speed neutrinos by the OPERA experiment stunned the physics and astronomy community last week.  I read the paper, and I listened to the talk from Geneva over the Web. This is seriously weird stuff! Faster-than-light speed neutrinos!? The talk was filled with wonderfully arcane geodetic methods for measuring […]