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.
Tower Bridge was opened in 1894 and is the only bridge across the river Thames which can be raised to allow tall ships to pass underneath. It is built of 11000 tons of steel a â¦ nd faced with Cornish Granite and Portland Stone.ondon Bridge is an ordinary modern (1973) bridge which spans the river Thames. Its predecessor, built in 1820, is now located at Lake Havasu in Arizona.