For some of these numbers it is very useful to be able to memorise them. If they are just two or three digits this is not usually too difficult, but a telephone number may be as many as twelve or more. Here are some mnemonic devices for remembering pi, and for telephone numbers. Mnemonics for the number Pi There once was a fellow from Greece,
Saratov Bridge. Saratov Bridge across the Volga River in Saratov, Russia was the longest bridge in the Soviet Union upon its inauguration in 1965. Its length is 2,803.7 meters and it connects Saratov on the right (west) bank of the Volga, with the city of Engels on the left (east) bank.
China is already home to seven of the world's 10 lengthiest bridges, including the world's longest, the 102-mile Danyang-Kunshan rail bridge, which runs over land and water near Shanghai. 102.4 miles: DanyangâKunshan Grand Bridge, China (rail) 70.6 miles: Tianjin Grand Bridge, China (rail)