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Nikon Metrology
Nikon Metrology, the industrial metrology division of Nikon Corporation since its 2009 acquisition of Belgian firm Metris, supplies X-ray CT, Laser Radar, and video measuring systems for manufacturing inspection.
Nikon Z50II
The Nikon Z50II, also known as the Z50II, is an entry-level APS-C mirrorless camera announced by Nikon in November 2024 as the successor to the Z50.
Nikon Z6III
The Nikon Z6III is a 24.5-megapixel full-frame mirrorless camera released in June 2024, the first with a partially-stacked CMOS sensor and 6K internal RAW video.
Nikon ZR
The Nikon ZR is a full-frame cinema camera announced by Nikon on September 10, 2025, the first model of its Z CINEMA series, developed with subsidiary RED Digital Cinema.
Nile Niami
Nile Niami is an American real estate developer and former independent film producer, best known for building The One, a 105,000-square-foot Bel Air mega-mansion marketed for $500 million.
Nilepet (South Sudan)
Nilepet, the Nile Petroleum Corporation, is South Sudan's state-owned national oil and gas company, incorporated in 2009 to hold the government's stakes in oil consortia.
Nilgiri Mountain Railway
The Nilgiri Mountain Railway is a 46-kilometer railway in Tamil Nadu, India, and the country's only rack-and-pinion railway, climbing from Mettupalayam to Ooty in the Nilgiri Hills.
Nimble (file format)
Nimble (formerly Alpha) is Meta's Apache-2.0 C++ columnar file format, a Parquet/ORC replacement for wide ML tables with thousands of columns, using FlatBuffers metadata, block encoding, and cascading pluggable encodings; experimental, Velox-only, no releases.
NimbRo-OP
NimbRo-OP is an open-source humanoid robot platform developed by team NimbRo at the University of Bonn, presented in 2012 as a low-cost TeenSize research and RoboCup soccer robot.
Nimbus program
The Nimbus program was a series of seven NASA Earth-observation research satellites launched between 1964 and 1978, flying over 30 instruments that pioneered ozone and weather sensing.
Nîmes aqueduct
Nîmes aqueduct (aqueduc de Nîmes): Roman gravity aqueduct of about 50 km from the Eure spring at Uzès to Nemausus (Nîmes), built 40–60 AD, famous for the Pont du Gard bridge, in service nearly five centuries.
Nimitz-class aircraft carrier
The Nimitz class is a class of ten nuclear-powered aircraft carriers of the United States Navy, led by USS Nimitz and built between 1968 and 2006.
NiMo alkaline hydrogen-evolution electrodes
NiMo alkaline hydrogen-evolution electrodes are nickel–molybdenum alloy cathodes that catalyze the hydrogen evolution reaction in alkaline electrolyte, studied as platinum-free catalysts for alkaline and anion-exchange-membrane water electrolyzers.
Nimonic
Nimonic is a family of nickel-chromium superalloys strengthened by aluminum and titanium, developed in the United Kingdom during World War II for gas-turbine blades and other high-temperature uses.
Nimr oil field
Nimr oil field is a cluster of oil fields in southern Oman, discovered in 1980 and operated by Petroleum Development Oman, known for polymer EOR.
Niña
The Niña, originally the Santa Clara, was the smallest of the three Spanish caravels Christopher Columbus sailed to the Americas in 1492, and carried him home in 1493.
Nina Balke
Nina Balke is a materials scientist working on nanoscale electrochemistry with atomic force microscopy; after eleven years at Oak Ridge National Laboratory, she joined NC State in 2021.
Nine Energy Service
Nine Energy Service is a North American oilfield services company providing cementing, completion tools, wireline, and coiled tubing services across major United States and Canadian basins.
Nine Mile Point nuclear power plant
Nine Mile Point Nuclear Station is a two-unit nuclear power plant on the shore of Lake Ontario near Oswego, New York, capable of producing up to 1,907 megawatts.
Nine Mile Point power station (Louisiana)
Nine Mile Point power station is a natural gas-fired electric generating station in Westwego, Louisiana, run by Entergy Louisiana and among the state's largest plants at about 2,440 MW.
Nine-track tape
Nine-track tape is a magnetic tape format for half-inch open-reel tape that stores data in nine parallel tracks. Introduced with the IBM System/360 in 1964, it was the standard mainframe backup medium into the 1990s.
Nine-volt battery
The nine-volt battery, commonly called the PP3 or IEC 6F22, is a rectangular battery delivering 9 volts from six cells, best known for powering smoke alarms.
Ninety-Nines
The Ninety-Nines, also known as The 99s, is an international organization of women pilots founded in 1929 and named for its 99 charter members, with Amelia Earhart as first president.
Ning Gu
Ning Gu (顾宁, Gu Ning, born 1964) is a Chinese biomedical nanomaterials scientist and Nanjing University professor, elected to the Chinese Academy of Sciences in 2021, known for nanozymes.
Ning Li
Ning Li (李宁) is a materials scientist who works on organic photovoltaics, perovskite, and tandem solar cells, leading a research group at South China University of Technology in Guangzhou.
Ningbo-Shanghai-Nanjing Oil Pipeline
The Ningbo-Shanghai-Nanjing Oil Pipeline (甬沪宁输油管网) is a crude oil pipeline network in eastern China, built by Sinopec from 2001 to 2004 and owned by PipeChina since 2020.
Ningbo–Zhoushan Port
Ningbo–Zhoushan Port (宁波舟山港) is a seaport on the coast of Zhejiang province, China, formed in 2006 by merging the ports of Ningbo and Zhoushan, and one of the world's largest by cargo throughput.
Ningde nuclear power plant
The Ningde nuclear power plant is a six-unit nuclear station in Fuding, Fujian, China, operated by China General Nuclear Power Group, with units running from 2013.
Ningde power station
Ningde power station (宁德电厂) is a coal-fired power station in Ningde, Fujian, China, owned by China Datang, with four units totaling 2,520 MW, commissioned from 2006 to 2009.
Ningdong Fangjiazhuang power station
Ningdong Fangjiazhuang power station, also known as Guodian Fangjiazhuang power station, is a coal-fired plant with two 1,000 MW ultra-supercritical units in Lingwu, Yinchuan, Ningxia, China, commissioned in 2019.