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Hace 3 días · 1 × 1010 [47] There are actually two black holes, orbiting at each other in a close pair with a 542-day period. The largest one is quoted, while the smaller one's mass is not defined. [47] Black hole of central elliptical galaxy of RX J1532.9+3021. 1 × 1010 [48] QSO B2126-158. 1 × 1010 [23] – 4.9+1.13.
Hace 20 horas · In this Chinese name, the family name is Shen. Shen Kuo ( Chinese: 沈括; 1031–1095) or Shen Gua, courtesy name Cunzhong (存中) and pseudonym Mengqi (now usually given as Mengxi) Weng (夢溪翁), [1] was a Chinese polymath, scientist, and statesman of the Song dynasty (960–1279). Shen was a master in many fields of study including ...
Hace 1 día · The history of Spain dates to contact between the pre-Roman peoples of the Mediterranean coast of the Iberian Peninsula made with the Greeks and Phoenicians. During Classical Antiquity, the peninsula was the site of multiple successive colonizations of Greeks, Carthaginians, and Romans. Native peoples of the peninsula, such as the Tartessos ...
Hace 5 días · Screenshot of Bitcoin Core. A paper wallet with the address as a QR code while the private key is hidden. A hardware wallet which processes bitcoin transactions without exposing private keys. Bitcoin wallets were the first cryptocurrency wallets, enabling users to store the information necessary to transact bitcoins.
Hace 1 día · t. e. The first human inhabitants of the Japanese archipelago have been traced to the Paleolithic, around 38–39,000 years ago. [1] The Jōmon period, named after its cord-marked pottery, was followed by the Yayoi period in the first millennium BC when new inventions were introduced from Asia.
Hace 4 días · Unix time. 1546300800 – 1577836799. Wikimedia Commons has media related to 2019. 2019 ( MMXIX ) was a common year starting on Tuesday of the Gregorian calendar, the 2019th year of the Common Era (CE) and Anno Domini (AD) designations, the 19th year of the 3rd millennium, the 19th year of the 21st century, and the 10th and last year of the ...
Hace 4 días · In general, the early modern period is considered to have lasted from the 16th to the 19th centuries (about 1500–1800). In a European context, it is defined as the period following the Middle Ages and preceding the advent of modernity, sometimes defined as the "late modern period". In the context of global history, the early modern period is ...
