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Heavy Guns Blast Trenches, 1915

Reported in Scientific American, This Week in World War I: April 17, 1915 World War I was an artillery war. In the opening days, the German army used a new variety of siege gun to blast holes in the Belgian and French forts that had been designed and built—decades earlier—to bar passage.

April 17, 2015 — Dan Schlenoff

Sinking the Lusitania, Part 2: Death and Blame, May 7, 1915

Reports and opinions in Scientific American on a key tragedy in World War I May 8, 2015 When the German submarine U-20 torpedoed the British civilian ship Lusitania on May 7, 1915, the grand ocean liner sank in only 18 minutes.

May 7, 2015 — Dan Schlenoff