Greenhouse operating method with enriched carbon dioxide atmosphere, involves cooling greenhouse or dehumidifying greenhouse air and supplying ambient air at given rate
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Wind turbine with vertical axis and method for manufacturing it.
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Measuring device for e.g. current strength, displays measured value using periodic movement corresponding to size of value being displayed
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Solar collector with integrated heat storage III.
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Solar collector with integrated heat storage II.
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Solar collector with integral water storage vessel, has mirror supported or provided by evolvent shaped base plate
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Method for removing hot and / or moist air from an at least partially closed greenhouse.
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Method for storing and extracting heat and cold in a reservoir, respectively.
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Kit comprising holder and data medium, e.g. CD, CD-ROM or DVD, has interlinked highlightable visual information provided on both holder and data medium
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Device and method for utilizing wave energy.
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Device is for fixture of solar panel or glass panel on virtually vertical surface, such as wall, facade or similar and has support profile on which panel can be borne
