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.
The Governor Albert D. Rossellini BridgeâEvergreen Point bridge (often called just the SR 520 bridge) in Seattle is the longest floating bridge on the planet. It is 7,497 feet (2,285 meters), or 1.4 miles (metric), long and spans Lake Washington, letting vehicles pass to and from Seattle and Bellevue, Washington. After three years of construction, the four-lane toll bridge opened in 1963. It wasn't the first floating bridge on Lake Washington; that was actually the Lake Washington Floating Bridge, which was built in 1940 and wound up as part of Interstate 90. But the SR 520 bridge is significantly bigger than its forbearer. It's four lanes and 60 feet wide and is supported by 33 pontoons. Those individual pontoons are enormous, at around two and a half stories tall, and 360 feet (110 meters) long -- that's longer than four gas tanker semi-trucks placed end to end.