Guest Thinkers — September 1, 2010

Earthquake near Nevado del Huila

Whether this is a coincidence or not, I thought I’d mention a report of an earthquake near the crater of Nevado del Huila in Colombia. The earthquake is reported as a magnitude 4.6 and at a depth of 20 km (although that is only a rough estimate), indicating that magma might be moving up the conduit system under the volcano – or that it might be just coincidental seismicity in a seismically active area. However, Huila had recently become active for the first time in 500 years, so this could be a sign of new activity to come.

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The great free will debate featuring Michio Kaku and Steven Pinker

Who — or what — really controls your mind?

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The Past

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More than a century ago, Halifax suffered an accidental blast one-fifth the size of the atomic bomb dropped on Hiroshima.

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7 min

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with

Laurie Santos

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