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Talyllyn Railway Number 4: Edward Thomas at Tywyn Wharf

The Talyllyn Railway is a narrow-gauge preserved railway running for 7.25 miles (11.67 km) from Tywyn on the Mid-Wales coast to Nant Gwernol near the village of Abergynolwyn. The line was opened in 1866 to carry slate from the quarries at Bryn Eglwys to Tywyn, and was the first narrow gauge railway in Britain authorised by Act of Parliament to carry passengers using steam haulage. Despite severe under-investment, the line remained open, and in 1951 it became the first railway in the world to be preserved as a heritage railway by volunteers. Since preservation, the railway has operated as a tourist attraction, significantly expanding its rolling stock through acquisition and an engineering programme to build new locomotives and carriages. In 1976 an extension was opened along the former mineral line from Abergynolwyn to the new station at Nant Gwernol. In 2001 the preservation society celebrated its 50th anniversary, and in 2005 a major rebuilding and extension of Tywyn Wharf station took place, including a much expanded facility for the Narrow Gauge Railway Museum. The fictional Skarloey Railway, which formed part of the Railway Series of children's books by the Rev. W Awdry, was based on the Talyllyn Railway. The preservation of the line inspired the Ealing Comedy film The Titfield Thunderbolt. (more...)

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Reference ranges for blood tests by mass

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Reference ranges for blood tests, sorted by mass concentration. A reference range is a set of values used by a health care provider to interpret a set of medical test results. The range is usually defined as the set of values 95 percent of the normal population falls within, or two standard deviations from the mean. All values (with some exceptions) denote blood plasma concentration, which is approximately 60–100% larger than the actual blood concentration if the amount inside red blood cells is negligible.

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