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Unformatted text preview: Name: Tran Ngoc Lan Huong Students ID: BTUN08085 ASSIGNMENT Unlike fish, human have no gill so people cannot breathe under water. All people would need to remain underwater indefinitely would be a long tube going to the surface -- a huge snorkel -- through which they could breathe. Unfortunately, there is another problem human must overcome when descending to the depths - a problem with far more complex and difficult consequences. That problem is pressure. In fact, the scientists have found that nobody makes snorkels that are ten, or twenty, or a hundred feet long. This is because as soon as people try to breathe through a snorkel when their body is more than two or three feet (~1 meter) beneath the surface of the water, the difficulties to inhale under those circumstances become more extremely. It means that the deeper underwater people go, the greater the pressure is, so that if divers want to survive underwater they have to plan the time which they will dive-times suitable with the...
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- Spring '09