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" In the sport of orienteering , a competitor uses a detailed map ( and perhaps a compass ) to navigate his or her way across varied terrain following a course drawn on the map . More than 600 Coptic families have settled here since the first handful arrived in 1968 . I can still recall experiencing such a sense of wonder when , decades ago , I first learned about polar coordinates in a high-school trigonometry class . There 's certainly no shortage of budget problems crying out for solutions : tax cuts that expire in four years unless renewed ; federal retirement programs like Social Security and Medicare that need to be overhauled to absorb tens of millions of baby boomers , a looming hidden tax hike on the middle class under the alternative minimum tax . One of their findings was that listeners like the sound of long , narrow halls better than that of wide halls . A number is said to be " absolutely normal " if its digits are normal not only to base 10 but also to every integer base greater than or equal to 2 . " The cave is now under the Church of the Nativity in the center of Bethlehem , about 5 miles south of Jerusalem . " Unless we act , we will saddle our children and grandchildren with tens of trillions of dollars of unfunded obligations , " Bush said . The amount and type of congestion induced by an erratic driver depend on how much the leading car 's velocity fluctuates , even when the average speed matches that of the rest of the traffic . In effect , they capture the degree of similarity ( or disparity ) among products within a brand and across different brands in the same category . " There 's a lot of skittishness on both sides about coming to the table , " said Sen. Judd Gregg of New Hampshire , the top Republican on the Senate Budget Committee . " So it seems odd to see " dental spa " written across the clear glass doors of a dentist 's office in Chicago 's tony Water Tower building , and to hear soothing classical music as you lie on a cushy massaging reclining chair while the hygienist readies her tooth scraper . He and Wilkes also dined at a Washington steakhouse at the foot of Capitol Hill frequented by lobbyists , which caught the attention of a House Intelligence Committee investigator looking into ties between defense contractors and Cunningham . Speaking of speediness and time , I've appreciated having a sleek digital clock that provides the time and date with exquisite precision ( http://www.atomic-clocks.com/ ) . In his unpublished autobiographical writings , Euler noted , " True , [ Bernoulli ] was very busy and so refused flatly to give me private lessons ; but he gave me much more valuable advice to start reading more difficult mathematical books on my own and to study them as diligently as I could ; if I came across some obstacle or difficulty , I was given permission to visit him freely every Saturday afternoon and he kindly explained to me everything I could not understand . The water contract , while small on the scale of the billions that flowed into Iraq , raises questions about why U.S. taxpayer dollars went to well-connected businessmen rather than Iraqis who could have benefited from a share of postwar reconstruction business . In response to one question on Iraq , the president , who a few months ago insisted that America was winning , acknowledged that if he were asked about the conflict by a pollster , he would express concern as well . The positive effect of longer auctions is decreasing , however , as the total number of buyers and sellers increases . More than 75 percent of respondents with spinach in their home threw it out . On a clear , moonless night , we see thousands of stars scattered across the sky . These elaborate , intricately worked out efforts represented " a small uprising against the new standard model in cosmology , " says Ian T. Durham , a graduate student at the Mathematical Institute of the University of St. Andrews in Scotland . In this case , however , the curvature of the outer circle is negative , because the other circles touch it from the inside rather than the outside .