Felix von Luckner was a romantic hero of World War I, a dashing nobleman who commanded one of the last sailing ships to fight in war. In this week's episode of the Futility Closet podcast we'll describe Luckner's uniquely civilized approach to warfare, which won admiration even from his enemies.

We'll also puzzle over how a product intended to prevent drug abuse ends up encouraging it.

Sources for our feature on Felix von Luckner:

Lowell Thomas, Count Luckner, The Sea Devil, 1928.

Edwin P. Hoyt, Count von Luckner: Knight of the Sea, 1969.

In all, Seeadler captured 16 ships totaling 30,099 tons between Dec. 21, 1916, and Sept. 8, 1917.

This week's lateral thinking puzzle was contributed by listener David White, who sent these corroborating links (warning -- these spoil the puzzle).

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Many thanks to Doug Ross for the music in this episode.

If you have any questions or comments you can reach us at [email protected]. Thanks for listening!