Platelets are important elements in the blood that are important for blood coagulation (clotting and prevention of bleeding). The normal platelet count ranges between 150,000 and 450,000 per microliter (one-millionth of a liter).
Known as Slauerhoffbrug (Slauerhoff Bridge), it is a tail bridge (kind of a bascule bridge) which can be quickly and efficiently raised by means of hydraulic mechanism to allow frequent passage of water traffic with minimum disruption to the vehicular traffic.uilt in 2000 the bridge is operated automatically almost every hour by two hydraulic cylinders which lift high in the air, a huge 15m by 15m portion of asphalt road. When closed the bridge deck merges seamlessly with the approach roads at both the ends.
Mackinac Bridge. The Mackinac Bridge is one of the world's most beautiful bridges and truly something to see! The bridge was designed by the great engineer David B. Steinman and opened on November 1, 1957. The structure took 48 months to complete with over 3, 500 workers and $99,800,000 dollars. Also know as the Big Mac or the Mighty Mac, the bridge stretches 8,614 feet making it the fourth longest suspension bridge in the world.