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Parabolic solar cooker

Building 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 where ... »
parabolic, rays, mirrors, tank, turbines
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Duration0h 0 min.
Date20.07.2022
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A coins battery

Here is a small project of a 'Volta' battery named after the Italian inventor Alessandro Volta.   The Swiss 5 ct coins are composed mainly of copper which is ideal for a chemical reaction in a battery.   The use of a led bulb makes it possible to produce a little light even with a very small electricity ... »
volta, inventor, bulb, geneva
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Duration0h 20 min.
Date20.07.2022
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