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7. Fire in the Sky
Pages 107-116

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From page 107...
... and kept temperatures hovering between 0 ant! 20 degrees Fahrenheit, auroral rays ant!
From page 108...
... Two days earlier, observers at the Sacramento Peak Solar Observatory in New Mexico detected a series of solar rumbles in the vicinity of sunspot region ABOO, a dark blotch that covered 3 billion square miles of the Sun's face. "Like the milder rumblings before a thunderclap, seven smaller flares had been counted that day before the big one came," journalist fohn Brooks wrote in an article for The New Yorker.
From page 109...
... upon magnetism rather than gravity," wrote Walter Sullivan, the clean of moclern science writers, in his book Assault on the Unknown, "every man in the woricl wouicl have been clizzy, yet a large portion of this planet's population sat or slept comfortably at home, unaware of what was going on." Those who were awake ant! attentive spies!
From page 110...
... Telegram messages on the Western Union cables were garbled, as stray electric currents flowed from west to east through the lines and potential drops varied by as much as 320 volts. Telephone calls from the United States to Europe were received in alternating sequences of whispers and squawks.
From page 111...
... in his story about the 1958 magnetic storm, "Nobocly knows what kinds of apparatus still undreamed! of may come along to be thrown out of whack by their caprices." "The recording of this event on a global scale was one of the major achievements of the IGY," wrote Walter Sullivan.
From page 112...
... transmit signals over the horizon, bouncing signals off the edge of space to reach distant receivers. During space weather storms, however, the density of plasma in the ionosphere can be quite variable, becoming agitates!
From page 113...
... A U.S. Navy ship cruising offshore had started using a special raclio frequency to keep in communication with its coastal base.
From page 114...
... For instance, in 1997, operators working through a performance review for the Federal Aviation Administration lost their lock of GPS signals from four of their five stations during an excruciating 13 minutes. Systems such as guided mis: sires that depend on extremely precise tracking of radio signals can also have problems because scintillation changes the path of those signals.
From page 115...
... A physicist in the British Army Operational Research Group, lames Stanley Hey, was charged with investigating this jamming of Army racier sets. Hey and colleagues cliscoverec!


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