The story of humanity’s pursuit of knowledge spans millennia, from the earliest grasp of mathematical principles to modern explorations of the cosmos. The Ishango Bone, a 20,000-year-old artifact ...
DAKAR, Senegal (AP) — Evelyn Gitau became hooked on chemistry in high school in Kenya. Alta Schutte remembers nearly losing her father to cardiovascular disease in the South African mining town where ...
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