Challenge of the Oceans Pt. 2 of 3

Challenge of the Oceans Pt. 2 of 3 National Academy of Sciences Raising 50 gallon drum w/ samples from bottom to measure Carbon 14 to tell when water had been at surface. Oceanographers working w/ equipment. Chart showing deep current running in Atlantic beneath the gulf stream. Testing for it shown w/ “pinger” enclosed. Porpoises (poor). Underwater plants, kelp, fish around reef. Plankton retrieved & seen thru microscope. Diatoms & animals seen. Schools of small fish. 15:15:52 Ocean explorer in scuba gear swimming w/ camera; taking notes. Turtle swimming underwater. 15:16:25 Instruments raised; troll bag unloaded of samples. Underwater camera from deep raised. Photographs from deep & pictures of ocean floor. Manganese nodules. 15:18:10 Echo Sounder print out & diagram illustrating its technique. Trenches shown. Geologist on shipboard, talking on phone to bridge, skipper at wheel. Research; Oceanography; Educational Film; Microscopic plants; animals; Radar