The riyal was a silver coin the same weight as the Ottoman 20 kuruş coin but was minted in .917 fineness rather than .830 fineness.

David Blaine How I held my breath for 17 min

Blaine is a town in Grainger County, Tennessee, United States.

Blaine is a city in Whatcom County, Washington, United States.

Between 1860 and 1863, .800 fine silver was used, before the standard used in France of .835 fineness was adopted for all silver coins except the 5 francs (which remained .900 fineness) in 1875.

Blaine County is a county located in the U.S. state of Montana.

Blaine County is a county located in the U.S. state of Oklahoma.

Blaine is a town in Burnett County in the U.S. state of Wisconsin.

Its protagonist, Amory Blaine, is an attractive Princeton University student who dabbles in literature.

Brewster is a village in, and the county seat of, Blaine County, Nebraska, United States.

For example, in most countries that used the gold standard, the standard coin was kept up to a uniform point of fineness.

In 1931, the size of the 5 franc coin was reduced from 25 grams to 15, with the silver content reduced to .835 fineness.

In this highly personal talk from TEDMED, magician and stuntman David Blaine describes what it took to hold his breath underwater for 17 minutes a world record and what his often death defying work means to him. Warning do NOT try this at home.