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Embed code for: science essay(1)
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By: Tim Adrian Dana
Ideas: we use the speed of the flow, there is a box that have water. when the water fall down and water wheel will rotation. There are some water in the bottle of the impounding reservoir. The air pressure of impounding reservoir is as same as the outside. But in the rubber hose, it is contacting with box. So the air pressure is less than impounding reservoir. So the water will be breathe in rubber hose and to the box. So the water will be circulation.
Real life example: waterwheel , it could be watering crops in ancient without people. It is look like a big wheel. Today, the idea of water turbine is from this. However, the water turbine has a dynamotor to make water energy become electric energy. The water flow from higher to lower, the reactions will make water turbine revolve, then transform water energy into kinetic energy. Then the kinetic makes water turbine revolve. Its principle is a transformation of energy in nature. Water energy is a resources that is nearly inexhaustible and like water off a duck’s back to nature. It will be one of the most important resource. Nevertheless, it also cheap,
Principle of hydropower: in our life, all of the hydropowers are use the lager altitude between water which is in the same river and find two place where stay at different altitude. Then, to install a machine which called water turbine generator between water which has lager altitude, use to product electric energy. At the same time, this process change the gravitational potential energy of water into the mechanical energy of water turbine generator. After that, most of mechanical energy will take the water turbine generator to work which product more electric energy for humans.
Advantage of hydropower: it can save the energy. It is not only polluting nothing but also cut down the energy like coal. But like this energy is endless. Although it cannot change much energy but I think in the future the scientific can invent model better than ours.
Side : it will be like a desk.
Materials: boarding, grass, cement, rubber hose, plastic, box, iron support.
Shape: it is a waterwheel in the box that look like a display. And there is another box near the box of waterwheel. They are connecting to others by rubber hose. And the box is on the iron support to move by it. This is construct and sharp of the model.
Situation: Todays, government pay a attention to renewable energy. However, the hydro power is the most important of them. The reason is hydro power have many benefit, convent, pollution-free, cheap. Therefore, many people think it is very promising and support to develop it.
Possible theme: one is recycling another one is save the energy. When the water fall and strike waterwheel rotation the water can recycling, it changes the energy of flow to the electric, so maybe people can invent more efficiently instead of burns the coal. It pollutes the environment when you burn coal.