GPS
World Wise Web - Un pódcast de BBC World Service
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The digital world only works if it is connected. In the early 1970s professor Bradford Parkinson was working with the United States Air Force as an engineer leading the team that developed GPS – the Global Positioning System, which uses satellites to pin point users wherever they are. Sixteen-year-old Malak from Israel finds out from professor Bradford Parkinson how it all came about, and why he still uses maps to sail by.
