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Pittsburgh (/ ˈ p ɪ t s b ɜːr ɡ / PITS-burg) is a city in and the county seat of Allegheny County, Pennsylvania, United States.It is the second-most populous city in Pennsylvania (after Philadelphia) and the 68th-most populous city in the U.S., with a population of 302,971 as of the 2020 census.
Worldwide consumption in 2019 was equal to 5.5 litres of pure alcohol consumed per person aged 15 years or older. [6] This is a decrease from the 5.7 litres in 2010.
100 quintillion (10 20) pengő, the largest denomination bill ever issued, Hungary, 1946. 1 sextillion pengő notes were printed, but never issued. Hyperinflation in Venezuela represented by the time it would take for money to lose 90% of its value (301-day rolling average, inverted logarithmic scale)
Graphene (/ ˈ ɡ r æ f iː n /) [1] is a carbon allotrope consisting of a single layer of atoms arranged in a honeycomb planar nanostructure. [2] [3] The name "graphene" is derived from "graphite" and the suffix -ene, indicating the presence of double bonds within the carbon structure.