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Evolution of Alvin 1964-2004. This image is outdated.

Evolution of Alvin 1964-2004. This image is outdated.
Evolution of Alvin 1964-2004. This image is outdated.
Evolution of Alvin 1964-2004. This image is outdated.
Evolution of Alvin 1964-2004. This image is outdated.
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Oberlander, E. Paul
Evolution of Alvin 1964-2004. This image is outdated.
Illustration
10/07/2005
media/alvin/alvins.jpg
Image of The Day caption:
In forty years of operation, the deep submergence vehicle Alvinhas evolved and changed its look several times (oldest version at thetop right, current version at bottom left, and a future conception ofthe next Alvin vehicle at the bottom right). In fact, the sub hasbeen completely disassembled (see movies at the top of linked page) every three to five years so engineers caninspect every last bolt, filter, pump, valve, circuit, tube, wire,light, and batteryall of which have been replaced at least once in thesubs lifetime. In all of those years and iterations, though, the venerable sub has never done what it did yesterday--place a call to the International Space Station.
Illustration by E. Paul Oberlander, WHOI Graphics
© Woods Hole Oceanographic Institution
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