Why is Mercury Used in Gold Mining? Mercury is a silvery metal that is liquid at room temperature. It is used in to extract gold from rocks. A puddle of mercury is poured onto a pile of crushed rock. The mercury and the rock are then mixed. Any
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Black Rhino Conservation
Black rhinos are a species of rhino found primarily in southern and eastern Africa. They are critically endangered, with just over 5,500 individuals left both in captivity and in the wild. If a species is endangered, it is at risk of disappearing from the wild. Why are
Spekboom Planting
What is spekboom? Spekboom is a plant that is local to South Africa. It is a semi-desert plant that can grow up to 5 metres tall. It has small, circular green leaves, similar to those of some cacti. Spekboom used to cover large portions of South Africa, but overgrazing by
Myth: Drinking Methanol can kill Coronavirus
A myth is circulating that drinking types of alcohol, specifically methanol, can help kill the coronavirus in your body, if you are experiencing symptoms. This myth is not true. Drinking alcohol will not make symptoms go away. It will not kill the virus. Methanol is a chemical that is found
The Sail Gedaim Weir
WHAT IS A WEIR? A weir is a barrier built across a stream or river. It can be made out of wood, concrete, or a mixture of rocks, gravel, boulders and soil. Water pools behind a weir, spreading the water from the river or stream. This means that the water
Myth: Drinking Water Washes the Virus to the Stomach Where it is Killed by Gastric Acid
A myth that has been circulating in WhatsApp groups is that drinking lots of water can wash the virus into your stomach, where gastric acid can kill it. There are several reasons that this myth is not true. If you have been infected, there will be millions of viral particles
Rhino Horn: The Illegal Trade Route from South Africa to Vietnam
RHINO HORN: THE ILLEGAL TRADE ROUTE FROM SOUTH AFRICA TO VIETNAM There are 20,000 white rhinos in Africa today; they are classified as “near threatened”. While this statistic alone is shocking, black rhinos (who have smaller mouths than white rhinos) are classed as “critically endangered”. Only 5,000 of them remain.