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In 2012, Naturalis Biodiversity Center at Leiden, the largest natural history museum of the Netherlands, planned to open a new exhibition hall in 2017.In order to increase the structural number of visitors from 300,000 to 400,000 per annum, the management decided to try and procure an authentic Tyrannosaurus skeleton, preferably one excavated by the museum itself.
Along with a more lifelike posture, the specimen also now includes a composite reconstruction of the skull by Michael Holland. [ citation needed ] It has been reconstructed in recent years, it measured an estimated 11.9 meters in length and an estimated weight of 7.4–14.6 metric tonnes, 9.1 metric tonnes being the average estimate in that ...
These screws are most frequently used in applications where the screw is used to control fine motion of an object. machine screw: A machine screw is generally a smaller fastener (less than 1 ⁄ 4 inch (6.35 mm) in diameter) threaded the entire length of its shank that usually has a recessed drive type (slotted, Phillips, etc.). Machine screws ...
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Composite deck boards are sold in either grooved or solid sided versions. The grooved composite board is fastened with hidden deck fasteners or clips, while the solid board is typically face-screwed. Most composite deck board manufacturers produce lengths of 12, 16, or 20 feet (3.7, 4.9, or 6.1 m), 5 + 1 ⁄ 2 by 3 ⁄ 4 inch (140 mm × 19 mm).
Stan Sacrison, an amateur paleontologist, was responsible for the initial discovery of Stan's bone fragments in 1987, and as a result is the namesake for the T. rex.He was out looking at plant life in South Dakota when he spotted Stan's pelvis visible in the side of a cliff. [3]
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Sue [a] (stylized: SUE), officially designated FMNH PR 2081, is one of the largest, [b] most extensive, and best preserved Tyrannosaurus rex fossils ever found, at over 90 percent recovered by bulk.
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