AQ
Endurance sank because design failed
A study in Polar Record found Ernest Shackleton's Endurance was structurally unsuited to compressive Weddell Sea ice and sank on Nov. 21, 1915, weaknesses Shackleton acknowledged.

A study in Polar Record found Ernest Shackleton's Endurance was structurally unsuited to compressive Weddell Sea ice and sank on Nov. 21, 1915, weaknesses Shackleton acknowledged.