Tag Archives | solar water geyser

Second SA Solar Challenge to start next week

The South African Solar Challenge 2010 kicks off in Pretoria next week. The ten-day race between solar-powered cars travelling more than 4 000 km across the country is scheduled to finish in Pretoria, on October 2. The 2010 event has attracted racing teams from Germany, Japan, Iran and South Africa, including the German School in […]

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Wetlands: their Importance and Function

Wetlands range from springs, seeps, mires and bogs in the mountains, to midland marches and flood plains, to coastal lakes, mangrove swamps and estuaries. All wetlands are linked by rivers. Water purification • Plants and soils in wetlands play a significant role in purifying water. • Many nutrients such as phosphorus and nitrogen, which are […]

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