A drought alert system in Africa could contribute to preventing farms from collapsing as the risk of droughts increases with climate changes. And because the main issue remains the general lack of water, researchers are also analysing the management of water resources across the continent, looking for ways to improve both governance and cooperation between African regions.
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One of the heaviest WW2 tanks ever created, the Tiger II. It weighed ~68.5 tonnes and had 100-180mm armour on the front. Budapest, Hungary, 1944.
Never mind rugby and football, try some boat jousting and flame hockey, find out more in 10 Brutal Ancient Sports.
Why do the number of spirals in a sunflower match up with the integers 34, 55, 89 and 144 — numbers found in the famous Fibonacci Sequence?