A story of survival on an Antarctic expedition

Earnest Shackleton's 1914 expedition to Antarctica is a legendary story of survival; his ship, the Endurance, was stuck and crushed by pack ice before sinking into the Weddell Sea. He and his crew were stranded for nearly three years before being rescued. Now, new research provides details on the fate of the Endurance; namely, that the ship itself was not strong enough for the conditions, and that Shackleton knew it. Host Carolyn Beeler speaks with Jukka Tuhkuri of Aalto University about his research on the structural problems with the ship.