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they were the first people to use astronomical events to help them navigate along the ocean. they were also using fishing nets
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the compass was created around this time. people didn't start using it to navigate through the ocean until much later on.
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people in france were doing construction on the Suez Canal. it was used to pick things up off of the ocean floor.
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sound navigation and ranging (SONAR) was used to help oceanographers get an idea of what the ocean floor was like
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the ROV was a remotely operated underwater vehicle and they used it to get a good look at the bottom of the ocean without having to send a human down
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they made a map of the ocean floor for the first time. it finally gave people a chance to understand what was going on underneath them
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this was the first camera that could work underwater & was created in Australia. it gave biologists the chance ti take photos underwater of marine species.
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conductivity, temperature and depth sensors can tell when there were mass's underwater
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this was the first satellite to be launched into space for ocean purposes.
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an acoustic doppler current profiler which helped sailors measure currents in the ocean