Ancient African contributions to mobile phones and GPS BUY NOW https://amzn.eu/d/ciVEAP5

Eratosthenes, an ancient African mathematician, contributed foundational knowledge that indirectly supports modern technologies like mobile phones and GPS. By calculating Earth's circumference accurately, he advanced geographical and mathematical understanding. His work in cartography and geometry laid groundwork for later innovations in geolocation, navigation systems, and satellite technology essential for GPS.

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