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12 hours ago · The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI). Since 2019, the metre has been defined as the length of the path travelled by light in vacuum during a time interval of 1 299 792 458 of a second, where the second is defined by a hyperfine transition frequency of caesium.
12 hours ago · The British Empire (red) and Mongol Empire (blue) were the largest and second-largest empires in history, respectively. The precise extent of the Mongol Empire at its greatest territorial expansion is a matter of debate among scholars. Several empires in human history have been contenders for the largest of all time, depending on definition and ...
12 hours ago · Die Ukraine fordert, russische Athleten von der Teilnahme an den Olympischen Spielen in Paris auszuschließen, wenn sie nachweislich das russische Militär unterstützen. Das Internationale ...
12 hours ago · Lesen Sie alle aktuellen Entwicklungen und Nachrichten über den russischen Angriffskrieg auf die Ukraine im Liveticker von ntv.de.
