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.
The Tyne Bridge was designed by the engineering firm Mott, Hay and Anderson and was built by Dorman Long and Co. of Middlesbrough who later went on to build Sydney Harbour Bridge, which opened three years later in 1932.he Tyne Bridge Towers are regularly opened to the public as part of Heritage Open Days, which take place in September each year. The Tyne Bridge is probably most recognised for the annual Great North Run, as 52,000 runners pass over the bridge accompanied by a display from the Red Arrows.