Geographic South Pole


Fourmilab South Pole Expedition

January, 2013

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ANTarctica 2013 gallery image S240.jpg

2013-01-14 07:40 UTC Click images for enlargements.

Madrid's very geometrical airport.

ANTarctica 2013 gallery image S241.jpg

2013-01-14 04:59 UTC

Here's a science experiment you can do yourself the next time you're on a shrieking aluminium death tube. At altitude, after you finish your beverage, cap the empty bottle and watch it as you descend. It will be inexorably crushed as the cabin pressure rises from around 2000 metres cabin altitude to that of the airport. This is less than the difference in altitude from the South Pole and sea level.

ANTarctica 2013 gallery image S242.jpg

2013-01-14 12:52 UTC

The twenty-six kilogram duffel, back at Fourmilab.

by John Walker
February 22nd, 2013
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This document is in the public domain.