All articles starting with N
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Ninth grade
Ninth grade is the ninth year of schooling, in the US usually the first year of high school. It falls in lower secondary education in most systems, typically at ages 14 to 15, and is a target grade in TIMSS and other assessments.
Ninth National Congress of the Chinese Communist Party
The Ninth National Congress of the Chinese Communist Party (中共九大) was held in Beijing in April 1969, ratifying the Cultural Revolution and naming Lin Biao as Mao Zedong's successor.
Ninth Xhosa War
The Ninth Xhosa War, also called the War of Ngcayecibi, was the last of the nine Xhosa–Cape frontier wars, fought in 1877 and 1878 and ending in Xhosa subjugation.
Nintu Corona
Nintu Corona is a 75-km-wide corona on Venus at 19.2°N, 123.5°E, IAU-named in 1994 for an Akkadian earth goddess; its amphitheater profile and missing radial fractures make its origin, caldera or impact, debated.
Ninurta
Ninurta, Mesopotamian god of war and agriculture, son of Enlil, wielder of the mace Sharur, slayer of Anzu and Asag in Lugal-e and the Anzu epic, worshipped at Nippur and Nimrud.
Ninurta Patera
Ninurta Patera is an IAU-approved volcanic depression (patera) on Jupiter's moon Io, about 82 km wide near 16.7S, 315.25W, named in 1985 for the Babylonian god of the spring sun.
Ninurta temple (Khorsabad)
Ninurta temple (Khorsabad): one of six palace-terrace temples at Dur-Sharrukin, Sargon II's capital, dedicated to Sin, Shamash, Ningal, Adad, Ninurta, and Ea; once misidentified by Victor Place as a harem.
Ninurta-apal-Ekur
Ninurta-apal-Ekur, also printed Ninurta-apil-Ekur, was a king of Assyria in the late 12th century BC, a descendant of Eriba-Adad I who seized the throne after returning from Karduniaš.
Ninurta-apla-X
Ninurta-apla-X, also written Ninurta-apla-…, is the conventional name of a poorly attested king of Babylon, conjecturally placed around 800 BC in the post-Kassite mixed dynasties.
Ninurta-kudurri-usur I
Ninurta-kudurri-usur I was a king of Babylon of the Bazi dynasty, its second of three kings, reigning around 987–985 BC; he is attested by a royal inscription from Uruk.
Ninurta-kudurri-usur II
Ninurta-kudurri-usur II was the second king of the Dynasty of E of Babylon, reigning about 8 months and 12 days around 943 BC, succeeding Nabû-mukīn-apli and followed by his brother Mār-bīti-aḫḫē-idinna.
Ninurta-nadin-shumi
Ninurta-nadin-shumi was the third king of the Second Dynasty of Isin and ruler of Babylon c. 1127–1122 BC, the father and immediate predecessor of Nebuchadnezzar I, reigning after the fall of the Kassite dynasty.
Ninurta-Pāqidāt's Dog Bite
Ninurta-Pāqidāt's Dog Bite is a comic Akkadian tale on a Neo-Babylonian tablet from Uruk, in which a man healed of a dog bite is driven from Nippur.
Ninurta-tukulti-Ashur
Ninurta-tukulti-Ashur, also known as Ninurta-tukultī-Aššur, was a Middle Assyrian king, the 84th on the Assyrian King List, who reigned briefly around 1132 BC before his brother Mutakkil-Nusku drove him to Babylonia.
Ninus Romance
The Ninus Romance is a fragmentary anonymous Greek romance telling the courtship of young Ninus, founder of Nineveh, and Semiramis; it is the oldest Greek novel known.
Nio (Buddhism)
Niō, also called Kongōrikishi or Shukongōshin, are a pair of muscular guardians at Buddhist temple entrances, one open-mouthed (Agyō) and one closed-mouthed (Ungyō), traced to the Indian deity Vajrapāṇi.
NIO China (蔚来中国)
NIO China (蔚来中国), legally NIO Holding Co., Ltd., is the mainland-China operating subsidiary of electric vehicle maker NIO, established in 2017 and headquartered in Hefei, Anhui.
NIO Energy
NIO Energy, known operationally as Nio Power, is the battery-swap and charging infrastructure arm of Chinese electric-vehicle maker NIO, founded in Wuhan in 2017 and operating thousands of swap stations.
Nio ES9 (蔚来)
The Nio ES9 (蔚来ES9) is a full-size electric executive SUV from the Chinese automaker NIO, launched in 2026 as its flagship SUV. At 5,365 mm long, it is the largest battery electric crossover developed in China.
Nio ET9
The Nio ET9 (蔚来ET9) is a battery electric flagship executive sedan from Chinese automaker Nio, the first model on its NT 3.0 platform, with China deliveries from March 2025.
Niobe (The Matrix)
Niobe is a Matrix franchise character played by Jada Pinkett Smith: captain of the hovercraft Logos in Reloaded and Revolutions, co-protagonist of Enter the Matrix, and elderly General leading IO in Resurrections.
Niobe (Νιόβη)
Niobe (Νιόβη), Greek mythological queen of Thebes, daughter of Tantalus and wife of Amphion, who boasted against Leto; her children were slain by Apollo and Artemis and she became the weeping rock of Mount Sipylus.
Niobe Planitia
Niobe Planitia, a 5,008-km volcanic lowland plain on Venus centered at 21°N 112.3°E, IAU-named in 1982 for the Greek Niobe; key region for Magellan-based geologic mapping and a disputed site of possible present-day volcanism.
Niobium
Niobium, symbol Nb and atomic number 41, is a corrosion-resistant transition metal used chiefly to strengthen steel and in superconducting magnets for MRI scanners and accelerators.
Niobium alloys
Niobium alloys are metallic alloys based on niobium, a refractory metal with a melting point of 2477 °C, used in rocket nozzles, jet engines, superconductors, and medical implants.
Niobium arsenide
Niobium arsenide (NbAs) is an inorganic compound of niobium and arsenic, crystallizing in a noncentrosymmetric tetragonal structure and confirmed in 2015-era experiments as one of the first Weyl semimetals.
Niobium carbide
Niobium carbide (NbC) is an extremely hard refractory ceramic compound of niobium and carbon with a melting point of 3,520 °C, used in tool steels and cemented carbides.
Niobium diselenide
NbSe2, or niobium diselenide, is a layered transition-metal dichalcogenide combining superconductivity with a 3×3 charge-density wave; bulk crystals superconduct below 7.2 K, and atomically thin layers show Ising superconductivity.
Niobium nitride
Niobium nitride (NbN) is a superconducting compound of niobium and nitrogen with a critical temperature of 14.7 to 16 K, making it the standard material for superconducting nanowire single-photon detectors.
Niobium oxide
Niobium oxide refers to compounds of niobium and oxygen, from NbO to Nb₂O₅ and mixed oxides, among the most studied fast-charging lithium-ion battery anode materials since the early 2010s.