 | This solar pendulum demonstrates different scientific principles : Concentration of sunlight rays with reflectors Greenhouse effect and absorption of solar radiation by dark colours Expansion and contraction of water due to temperature changes Transformation of solar thermal energy into ... »
pendulum, sunlight, rays, reflectors, greenhouse
| | Note |  | | Difficulté |  | | Durée | 3h 0 min. | | Date | 27.11.2013 | | Langue(s) | |
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 | Apart from photovoltaic cells, there is another way to produce electricity with the Sun. This technique uses the Sun to heat water or air in a closed tank. High temperatures are reached by using parabolic mirrors which concentrate the Sun's rays. The heat increases the volume of water or air in the ... »
photovoltaic, tank, parabolic, mirrors, rays
| | Note |  | | Difficulté |  | | Durée | 3h 0 min. | | Date | 05.11.2013 | | Langue(s) | |
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 | Building a parabolic solar grill helps to understand the principle of sunlight concentration. This technique is already used in experimental solar power plants. Parabolic mirrors focus the Sun's rays on black pipes in which water circulates. The heated water expands and turns into steam ... »
parabolic, sunlight, mirrors, rays, pipes
| | Note |  | | Difficulté |  | | Durée | 0h 30 min. | | Date | 31.05.2013 | | Langue(s) | |
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 | 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 | | | Durée | 0h 0 min. | | Date | 15.05.2013 | | Langue(s) | |
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 | This DIYs project shows how it is possible reach high temperatures by concentrating the sun's rays. This technique is already used in experimental thermal power plants in California and France. These plants concentrate the sun's rays in a single point with a field of mirrors. Like in most power ... »
concentrating, rays, mirrors, powering, turbine
| | Note | | | Difficulté | | | Durée | 2h 30 min. | | Date | 14.05.2013 | | Langue(s) | |
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