links for 2007-03-09

World statistics visualised as relative maps.

(tags: statistics map cartography anthropology world geography visualization chart data community)

Thomas Edison sent his agents round to the Poet Laureate’s home to record his voice on wax cylinders in 1890.

(tags: poetry tennyson light brigade wax cylinders edison recording 1890)

The Busy Beaver function (about halfway down) is fascinating.

(tags: math numbers mathematics computation turing computable noncomputable halting)