from the publishers website.

Jozsef Ludvig (gray jacket), 
and I'm wearing the 
plead shirt

Temperature:  about -20F,
(but it's a dry cold) 
Altitude: a little shy of 10,000'.

The tower about 50 yards 
behind usis used to drill into 
the ice, and todeploy 
experimental hardware.

Berkeley engineers Josef Ludvig and Gerald Przyblyski photo: Lucy Jane Bledsoe