In north-central Nigeria, in the state of Kogi, two great rivers meet. One is the Niger, the other its main tributary, the Benué (once known as the Tchadda. The Niger rises in ancient rocks in the Guinea Highlands, sweeps across West Africa in a great boomerang-shaped course through Mali and Niger, and floods out eventually [...]
Tom Levens who is from South Ronaldsay in Orkney has an unusual job. He works on the Large Hadron Collider in Switzerland helping to find such things as the Higgs Boson. Deep in the mountains lies a large doughnut-shaped accelerator, a massive hollow tube lined with magnets round which atomic particles hurl at high speed. [...]
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