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| Watch as Charles Lee and Mike League set a miniature remote-control submarine in the seawater pool on the back deck. It ran fine at the surface, but when they weighted it and sent it to the bottom, the propellers wouldn't go. One assessment of the problem was that the waves from the antenna wouldn't pass through the water. How could they change the frequency of the waves? They didn't try. Instead, another hypothesis was tested: would the sub run better in fresh water than salt water? Yes, it did! The propellers spun, even in the bottom of a five-gallon bucket of fresh water, but wouldn't do so in salt water. |
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Here, Expedition Leader and Alvin Pilot Pat Hickey uses Alvin's manipulators to place a crab trap amongst a patch of Riftia. Look closely in the Riftia for crabs and other inhabitants.
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Once the frying pans return to the surface, Tom Niederberger and Dr. Ian McDonald carefully collect samples for future culture and analysis. Here, Ian looks on as Tom carefully collects pieces of newly formed chimney, hoping they contain nanoarchaea that he's interested in culturing.
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