People can live under water - level 1, A12
One man from Israel made a special machine. With this machine, people can live under water for a very long time. The system is simple. The machine does what fish do when they live under water.
The machine gets air from water. There is a lot of air in water. For example, in 200 metres under water, there is 1.5% of air in water.
This machine is good for submarines too. They can be under water a long time in dangerous places.
People wanted to get air from water before, but it was expensive. This machine is not expensive. It is not a problem to make this machine.
Written by Danny for News in Levels
Interesting words: special, submarine, dangerous.
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