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The Radio Frequency | |
In the last few years, the electromagnetic spectrum has quietly become a critical part of contemporary life. It enables you to communicate with mobile phones, use remote controls, tune in TV stations, pop corn in the microwave, open your car door without a key, listen to radio stations, and surf the Internet when you’re sipping coffee at Starbucks. | ||
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The Afghanistan Pape | |
| Craig Whitlock 외 | ||
ǻ | Simon & Schuster | ||
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Location-Based Techn | |
When General Motors introduced OnStar in some of its Cadillac models in 1996, it was pioneering an industry known as location-based services ?or LBS. Because of the existence of global positioning satellites that can triangulate the position of a GPS transmitter anywhere in the world, GM had the idea that roadside assistance and other services could be delivered to drivers in their cars on a subscription basis. | ||
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Lost And Founder | |
| Rand Fishkin | ||
ǻ | Portfolio | ||