Michelle Brown and Andy Stillinger calculate the tilt of the Earth's axis by using height and shadow length at the South Pole on winter solstice.
Excellent images and video from Antarctica!
An attempt to sum up a 5-week journey to Antarctica in less than 11 minutes.
WHOI is the world's largest private, nonprofit ocean research, engineering and education organization. This site has information on oceans from climate to ocean life to ships and technology.