diving bells

During the Spanish colonization of Mexico, a young girl invents a diving bell to save her brother and her people.

Offers a detailed account of U.S. Navy officer Charles "Swede" Momsen's attempts to save thirty-three men who were trapped in a sunken submarine during the first days of World War II.

Offers a detailed account of U.S. Navy officer Charles "Swede" Momsen's attempts to save thirty-three men who were trapped in a sunken submarine during the first days of World War II.