On the same Wavelength
Aug 12th 2004
Most people do not worry much about physics or politics when, for example, they look at the colours of a rainbow. Nor do they pause much when they use a remote control for their TV set, talk on a mobile phone, listen to the radio, cook food in their microwave oven, open their car door from a distance, or surf the internet without wires. Yet these are all phenomena of electromagnetic radiation. How humans harness electromagnetic waves — and specifically those in the radio-frequency part of the spectrum — has become so important that old and new ways of thinking are now lining up for a tense confrontation that will affect numerous businesses and billions of consumers.
Full text:
http://www.economist.com/science/displayStory.cfm?story_id=3084475
NR
Aug 12th 2004
Most people do not worry much about physics or politics when, for example, they look at the colours of a rainbow. Nor do they pause much when they use a remote control for their TV set, talk on a mobile phone, listen to the radio, cook food in their microwave oven, open their car door from a distance, or surf the internet without wires. Yet these are all phenomena of electromagnetic radiation. How humans harness electromagnetic waves — and specifically those in the radio-frequency part of the spectrum — has become so important that old and new ways of thinking are now lining up for a tense confrontation that will affect numerous businesses and billions of consumers.
Full text:
http://www.economist.com/science/displayStory.cfm?story_id=3084475
NR
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