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  • Evaporative Air Coolers
    An Evaporative Air-Cooler is a cooler that creates cool air from the natural evaporation of water and this cooled air is then moved by a fan, these were widely used by the Persians in the Arabian peninsula by creating ducts that channelled hot desert air over ponds or fountains, by the process of water evaporating it cooled the air around it and was blown over the occupants.
  • Basics of Solar Power Systems
    The sun provides a huge amount of energy and this energy is fully renewable, free and available for 6 to 8 hours per day on average. The sun does not have to be shining fully to provide this light energy and can still generate power on cloudy days. In Zimbabwe we have an abundance of good quality sunshine throughout most of the year and this can be converted into electrical energy by Photovoltaic solar panels.
  • Solar energy saving our trees
    Solar powered tobacco curing system