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1 dzień temu · Russia, or the Russian Federation, 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. It is the world's ninth-most populous country and Europe's most populous country.Russia is a highly urbanized country including 16 population centres with over a million ...
1 dzień temu · This is a list of conflicts in Europe ordered chronologically, including wars between European states, civil wars within European states, wars between a European state and a non-European state that took place within Europe, and global conflicts in which Europe was a theatre of war.. There are various definitions of Europe and in particular, there is a significant dispute about the eastern and ...
2 godz. temu · Tiger. The tiger ( Panthera tigris) is the largest living cat species and a member of the genus Panthera native to Asia. It has a powerful, muscular body with a large head and paws, a long tail, and orange fur with black, mostly vertical stripes. It is traditionally classified into nine recent subspecies, though some recognise only two ...
1 dzień temu · Enrico Fermi (Los Alamos 1945) The Fermi paradox is the discrepancy between the lack of conclusive evidence of advanced extraterrestrial life and the apparently high likelihood of its existence. As a 2015 article put it, "If life is so easy, someone from somewhere must have come calling by now." Italian-American physicist Enrico Fermi's name is associated with the paradox because of a casual ...
1 dzień temu · Cattle (Bos taurus) are large, domesticated, bovid ungulates widely kept as livestock.They are prominent modern members of the subfamily Bovinae and the most widespread species of the genus Bos.Mature female cattle are called cows and mature male cattle are bulls.Young female cattle are called heifers, young male cattle are oxen or bullocks, and castrated male cattle are known as steers.
2 godz. temu · The Vijayanagara Empire (/ v ɪ ˌ dʒ ə j ə ˈ n ɑː ɡ ə r ə /; also called the Karnata Kingdom) was a medieval Hindu empire that ruled much of southern India.It was established in 1336 by the brothers Harihara I and Bukka Raya I of the Sangama dynasty, members of a pastoralist cowherd community that claimed Yadava lineage.. The empire rose to prominence as a culmination of attempts by ...
2 godz. temu · After invention of spectroheliographs and monochromatic filters, flares began to be observed much more often in Hα and some other chromospheric spectral lines.An Hα monochromatic image of a flare often shows two bright ribbons, the distance between which increases with time (Fig. 10.2).The area of emitting regions is from several millionths to several thousandths of the solar hemispheres.
