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And the result is...

Submitted by Hans De Keulenaer on Sun, 2007-06-03 13:02.

... 457 kg

The result of the Ice Challenge was revealed last week. On April 18th, two blocks of ice were placed in a red (normal isolated) and green (super-isolated) envelope. While the ice block in the red envelope melted after 11 days, 457kg of ice remained when the green envelope was removed May 31st.