scuba diving - a mid ocean under sea study

Transcription

Only the selective hand and eye of man in a free diving craft can do this. So Alvin will be launched and recovered, launched and recovered again. A score of dives to the sea bottom are planned for Alvin this summer. Here is the end of the initial 9-hour test dive to the bottom of the Rift Valley. Alvin is ready to explore and chart as much of the Rift Valley as the short season will allow. We will now follow Alvin and its three-man crew through one of the dives to the Median Valley through some 9,000 ft of blackness. One of the 16 dives


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