myazdani
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116 weeks ago @ http://ccnyword.com/ - No More Healthcare! · 0 replies · +1 points
117 weeks ago @ http://ccnyword.com/ - Highlights from the He... · 0 replies · +1 points
117 weeks ago @ http://ccnyword.com/ - Word around the World ... · 0 replies · +1 points
http://www.nature.com/ncb/journal/v11/n11/abs/ncb...
133 weeks ago @ The Word - From Tobacco to Obesity · 1 reply · +1 points
133 weeks ago @ The Word - From Tobacco to Obesity · 0 replies · +1 points
133 weeks ago @ The Word - From Tobacco to Obesity · 0 replies · +1 points
Sviation and space travel depend on radio transmissions, as we know tragically from the case of the Brazilian 737 downed when it collided in midair with a smaller plane whose transponder was turned off, and more optimistically by the Apollo missions as we celebrate the 40th anniversary of the first lunar landing. Guglielmo Marconi may not have envisioned, when it was first “discovered that it was possible to transmit electric waves through the air without a wire,” the full implications of that discovery.
The transmissions, from mobile phone conversations beaming every which way through the lower atmosphere, to the latest lubricious single titillating us through our car radios. Ours is truly a broadcast age, yet the vast majority of signals slip away unheard. We tune in at very selected frequencies, and only when it suits us. The vox populi is relegated to the equivalent of public-access television.
Governments use a huge section of bandwidth for defense purposes, communicating with satellites, and even as a kind of non-lethal weapon (See, 95 GHz: a two-second burst of the stuff can heat the skin of a person to a temperature of 130° F [54° C] at a depth of 1/64th of an inch [0.4 mm], causing the person to do whatever it takes to flee).
133 weeks ago @ The Word - The Word (Beta) · 0 replies · +1 points
133 weeks ago @ The Word - The Word (Beta) · 0 replies · +1 points
133 weeks ago @ The Word - The Word (Beta) · 1 reply · +1 points
133 weeks ago @ The Word - The Word (Beta) · 3 replies · +1 points
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