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 london bridge that was rebuilt at lake havasu city consists of a frame with stones from rennie s london bridge used as cladding the cladding stones used are 150 to 200 millimetres 6 to 8 inches thick some of the stones from the bridge were left behind at merrivale quarry at princetown in devon