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Parabolic solar cooker

The construction of a parabolic solar cooker helps to understand how it is possible to concentrate the solar rays to reach higher temperatures. This technique is used in experimental power plants in California and France. These plants use a field of mirrors that concentrate rays to a single point ... »
parabolic, rays, mirrors, tank, turbines
Note
Difficulté
Durée0h 0 min.
Date15.05.2013
Langue(s)

Water rocket

This water rocket DIYs project shows how you can stock energy and illustrates the action-reaction principle.   With the help of a bicycle pump, air is compressed in a tank (bottle) containing some water. By releasing the air, the water is expelled and the rocket is launched high in the air. To ... »
rocket, illustrates, bicycle, pump, compressed
Note
Difficulté
Durée3h 0 min.
Date03.05.2013
Langue(s)
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