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Presentations |
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Sea Probe Presentation Script |
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Ordinarily, divers build up too much nitrogen in their blood from the higher pressure of the ocean depths . They can stay below for only limited periods of time, and must decompress to allow the nitrogen to slowly dissolve out of their bodies. If they hurry to the surface, the nitrogen gas bubbles quickly out of their blood, blocking circulation and causing the "bends," a serious and potential lethal condition. In Aquarius, the divers can live for weeks under pressure. Their bodies are saturated with nitrogen -- no problem, so long as they remain under pressure. Saturation dives allow scientists to spend much longer periods of time studying the ocean floor than surface dives could ever allow. When Aquarius aquanauts return to the surface, of course, they must decompress slowly, to avoid the bends. In
our Seaprobe, you will see and hear recordings of scientists researching sharks.
An interactive video displays oceanic information consisting of NASA
satellite images of the sea. You
also have an excellent view of the open ocean tank. Conversation starters: Hi, my name is _________. Did you know that this is a replica of a real undersea habitat? What do you think it would be like to live and work under the sea? Q&A: Is
this a model of a real undersea habitat? Are
those the voices of real divers I hear? Where
do those satellite pictures come from? |