The new titanium personnel sphere for Alvin is set for loading into the chamber of a massive pressure-testing instrument at a Northrop Grumman facility in Annapolis, Md. The ram-like instrument at right seals the chamber, in which pressures will be increased to those simulating depths of 6,500 meters (the depth to which the sub will go) and higher. (Bruce Strickrott, Woods Hole Oceanographic Institution)[back]
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