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Capillary Facets
As you can see in the picture below, capillary tubes can carry water upwards in a small distance just like what happen in the roots and the tubes of plants. Actually in this article, the water just is pulled up in few centimeters which is not enough for the needs of our design.
In addition, this article focus on using capillary to take the water to a higher place and then release them to get electrical energy which we can also taking into consideration if the gained electrical energy is considerable.