The culprit is a molecule called gliadin, which is found in certain gluten-containing grains and causes symptoms in gluten-sensitive people. The grains that cause the greatest problems are wheat, rye, barley, spelt, and kamut; whereas corn, rice, millet, and buckwheat are generally considered safe.
The Forth Bridge's piers are constructed from 120,000 cubic yards of concrete and masonry, faced with 2 ft thick granite. 200 trains use the bridge every day, carrying 3 million passengers each year. The total painted area of the Forth Bridge is 230,000 sq metres, requiring 240,000 litres of paint.
Forth Bridge was the most prominent steel structure when it became operational in 1890. The cantilever railway bridge was built across the Firth of Forth at Queensferry, 14km west of Edinburgh. It still continues to remain a significant and admirable engineering structure of the Victorian era.he bridge was first tested and used in January 1890, where two 1,000ft long trains consisting of a locomotive with 50 wagons each passed across the bridge side-by-side through the south entrance. Forth Rail Bridge was finally commissioned in March 1890.