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...known as NAVSTAR GPS) in 1973. The military launched the first GPS satellite in 1978 and completed the system in 1995. GPS uses a "constellation" of 24 satellites orbiting 12,000 miles high, each circling the globe every 12 hours. The 2,000-lb satellites broadcast radio signals to Earth with information about their location and the exact time the signal was transmitted (each satellite carries an atomic clock). By calculating the difference between radio signals received from four or more satellites, GPS receivers on the ground can determine their own location, speed and elevation with great accuracy - usually within...
There was just one problem. Though prices rose by as much as 400% during the boom years, few people wanted the finished properties they had purchased - usually off plan, and often well before the first spadeful of earth had been turned. The market was driven by speculators, interested only in trading - or "flipping" - incomplete units, which often sold for more than completed buildings, and might get flipped 10 times before construction finished. "You can't believe how crazy this was," says Robert McKinnon, head of real estate research at Al Mal Capital, a local investment firm. "Everyone knew...
...This article contains a table. Please see hardcopy of magazine or PDF.] HUBBLE WEBB ORBIT 353 miles from Earth 1 million miles from Earth PRIMARY-MIRROR SIZE 7.9 ft. in diameter 21.3 ft. in diameter LENGTH 44 ft. 72 ft. WEIGHT...
...Dylan [May 11]. I have followed Dylan for more than 46 years, from his folk era to Blonde on Blonde, with its existential masterpiece "Visions of Johanna," and beyond. Albert Einstein said of Gandhi, "Generations to come will scarce believe that such a one as this ... walked upon this earth." I feel the same can be said of Dylan. I know he bristles at such adoration, but if he were in my shoes, he'd understand the appreciation and love. With so much evil in the world, humanity needs poets like Dylan who challenge us to think beyond the morass...
...saved forever. Still, that adds up. The total currently includes 9 billion pages of text records, more than 20 million photographs, 7.2 million maps, charts, and architectural drawings, and more than 365,000 reels of film. Arranged side by side, the library's inventory would circle the Earth more than 57 times...