In 1969 off the California coast, a US Navy crane carefully lowered a massive tubular structure into the waters. It was designed for an elite group of divers to spend days or even months at a stretch living and working on the ocean floor. Sealab tells the little-known story of the daring program that tested the limits of human endurance and revolutionized undersea exploration.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $20. ThriftBooks.com. Read more. Spend less.