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.
Building of the bridge [change | change source]. Before the bridge was built, the only way people could get to Anglesey island was by a ferry from Holyhead. The water of the Menai Strait is very rough and dangerous, so it was hard for people to use their own boats or swim to the island.The people who lived on Anglesey sold cattle that they raised.n 1999, the bridge closed for one month. The road was fixed and the bridge was made stronger. When it was closed, people had to drive over the Britannia Bridge to get to the island. One part of the bridge was closed for six months starting on February 28, 2005.