from the global-tinnitus dept.
MattSparkes writes "It has been known for some time that there is a constant hum that emanates from the Earth, which can be heard near 10 millihertz on a seismometer. The problem was that nobody knew what caused it. It has now been shown that it is caused by waves on the bottom of the sea, and more specifically 'by the combination of two waves of the same frequency travelling in opposite directions.'"
Dealing with the problem of pure staff accumulation,
all our researches ... point to an average increase of 5.75% per year.
-- C.N. Parkinson