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30,000 BCE
Polynesian Seafarers
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
the compass was created around this time. people didn't start using it to navigate through the ocean until much later on. -
Dredging
people in france were doing construction on the Suez Canal. it was used to pick things up off of the ocean floor. -
Creation of SONAR
sound navigation and ranging (SONAR) was used to help oceanographers get an idea of what the ocean floor was like -
The ROV
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 -
Maps
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 -
The Calypso
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. -
CTD
conductivity, temperature and depth sensors can tell when there were mass's underwater -
The Seasat
this was the first satellite to be launched into space for ocean purposes. -
ADCP
an acoustic doppler current profiler which helped sailors measure currents in the ocean