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Alvin's Fun Facts

Alvin‘s Fun Facts

Here are answers to some of the questions people have asked about the deep-sea research submersible in its first half-century.

The Boy in the Alvin Sphere

The Boy in the Alvin Sphere

The titanium personnel sphere for the new deeper-diving Alvin submersible began undergoing a series of tests Tuesday in a pressurized tank at a facility in Annapolis, Md., to see how it reacts to pressures simulating…