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  1. ... abacus is typically around 20 cm (8 inches ) tall and it comes in various widths ...reset to the starting position instantly by a quick jerk along the horizontal axis to spin all the beads away from the...

  2. ... 1,600 km (1,000 miles) taking snow depth measurements along the way. When CryoSat-2 finally launches in 2009, ...

  3. ... reservation receives an average annual precipitation of between six and seven inches . Farther east, the climate becomes less arid. The Palouse...