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2 giorni fa · Carbon dioxide is a greenhouse gas. It absorbs and emits infrared radiation at its two infrared-active vibrational frequencies. The two wavelengths are 4.26 μm (2,347 cm −1) (asymmetric stretching vibrational mode) and 14.99 μm (667 cm −1) (bending vibrational mode). CO 2 plays a significant role in influencing Earth 's surface ...
2 giorni fa · Austria-Hungary. Austria-Hungary, often referred to as the Austro-Hungarian Empire or the Dual Monarchy, was a multi-national constitutional monarchy in Central Europe [c] between 1867 and 1918. Austria-Hungary was a military and diplomatic alliance of two sovereign states with a single monarch who was titled both emperor of Austria and King of ...
2 giorni fa · Founded in 1850, it is the oldest university in both Australia and Oceania. One of Australia's six sandstone universities , it was one of the world's first universities to admit students solely on academic merit, and opened its doors to women on the same basis as men. [12]
3 giorni fa · The Mexican–American War, [a] also known in the United States as the Mexican War, and in Mexico as the United States intervention in Mexico, [b] was an invasion of Mexico by the United States Army from 1846 to 1848. It followed the 1845 American annexation of Texas, which Mexico still considered its territory because Mexico refused to ...
1 giorno fa · e. The history of China spans several millennia across a wide geographical area. Each region now considered part of the Chinese world has experienced periods of unity, fracture, prosperity, and strife. Chinese civilization first emerged in the Yellow River valley, which along with the Yangtze basin constitutes the geographic core of the Chinese ...
1 giorno fa · Internet TLD. .ru. .рф. Russia, [b] or the Russian Federation, [c] is a country spanning Eastern Europe and North Asia. It is the largest country in the world by area, extending across eleven time zones and sharing land borders with fourteen countries. [d] It is the world's ninth-most populous country and Europe's most populous country.
1 giorno fa · 1850: William Armstrong invents the hydraulic accumulator. 1851: George Jennings offers the first public flush toilets, accessible for a penny per visit, and in 1852 receives a UK patent for the single piece, free standing, earthenware, trap plumed, flushing, water-closet.
