edgepedia

Technology and the built world

61,984 articles

Nancy Lynch

Nancy Lynch is an American computer scientist and NEC Professor at MIT who heads the Theory of Distributed Systems group, best known for the FLP impossibility result and 1988 partial-synchrony work.

NAND flash

NAND flash is a non-volatile storage technology retaining data without power, introduced by Toshiba in 1987 and used in SSDs, memory cards, and USB flash drives.

NAND gate

The NAND gate, also called a Negated AND gate, is a digital logic gate whose output is low only when all inputs are high; any Boolean function can be built from NANDs alone.

Nanfang'ao Bridge (南方澳大桥)

Nanfangao Bridge was a 140 m single arch bridge crossing the Nanfangao fishing harbor channel in Yilan County, Taiwan; it collapsed in 2019, killing six.

Nanhai Foshan power station

Nanhai Foshan power station (京信佛山南海发电厂) is a coal-fired power station in Xiqiao, Foshan, Guangdong, China, with four units totaling 1,100 MW, unusual for burning coal water slurry.

Nanjing Huarun Thermal power station

Nanjing Huarun Thermal power station (华润电力南京华润热电), also known as the Nanjing Banqiao power station, is a 660 MW coal-fired heat and power station in Nanjing, Jiangsu, China.

Nanjing Verbund site

The Nanjing Verbund site is a large integrated petrochemical complex in Nanjing, China, run by BASF-YPC, a joint venture of BASF and Sinopec, opened in 2005 as BASF's largest single investment.

Nanjing Yangtze River Bridge (南京长江大桥)

The Nanjing Yangtze River Bridge (南京长江大桥) is a double-deck road and railway bridge over the Yangtze at Nanjing, China, opened in 1968 as the first major bridge designed and built entirely by China.

Nankai Electric Railway

Nankai Electric Railway (南海電気鉄道) is a Japanese private railway company based in Namba, Osaka, whose network runs from southern Osaka to Wakayama, including Kansai International Airport.

Nanko power station

Nanko power station (南港発電所) is an LNG-fired thermal power station of the Kansai Electric Power Company in Suminoe-ku, Osaka, Japan, with three 600 MW units commissioned in 1991.

Nanliang Oil Asset

Nanliang Oil Asset (南梁油田, Nanliang oilfield) is a low-permeability oilfield in Huachi County, Gansu, China, operated by PetroChina Changqing Oilfield and producing over 500,000 tons a year since 2018.

Nanning hydroelectric plant

The Nanning hydroelectric plant, formally the Nanning Pumped Storage Power Station (南宁抽水蓄能电站), is a 1,200 MW pumped-storage station in Guangxi, China, fully commissioned in December 2025.

Nanning power station

Nanning power station (国电南宁发电厂) is a 1,320 MW coal-fired power station in Hengzhou, Nanning, Guangxi, China, with two 660 MW supercritical units operating since 2011 and 2012.

Nannochloropsis

Nannochloropsis is a genus of oleaginous marine microalgae under 5 µm wide, cultivated as aquaculture feed and studied as a source of omega-3 EPA and biodiesel.

Nano Banana Pro

Nano Banana Pro, officially named Gemini 3 Pro Image, is an image generation and editing model released by Google in November 2025, built on Gemini 3 Pro.

Nanocellulose

Nanocellulose is a nanomaterial of cellulose fibers with nanometer-scale dimensions, valued for combining low density, high strength, and flexibility, with uses in packaging and drug delivery.

Nanocomposite

A nanocomposite is a solid made of two or more phase-separated materials in which at least one phase, the nanophase, has dimensions in the nanoscale, roughly 1 to 100 nm.

Nanocore

NanoCore is a modular remote access trojan for Windows, built on .NET and first sold in underground forums in 2013, giving operators remote desktop, keylogging, and password recovery.

Nanocrystal memristor

A nanocrystal memristor is a memristive device whose resistive-switching layer is a thin film of crystalline nanoparticles, such as quantum dots or halide perovskite nanocrystals, between two electrodes.

Nanocrystalline high-entropy alloys

Nanocrystalline high-entropy alloys (NC HEAs) are high-entropy alloys, metallic materials combining five or more principal elements, whose grains are smaller than about 100 nanometers; their central challenge is thermal stability.

Nanocrystalline metals

Nanocrystalline metals are metals and alloys with grain sizes below 100 nm, first synthesized by Herbert Gleiter in 1981, giving much higher strength than conventional metals.

Nanocrystalline steel

Nanocrystalline steel is steel with an internal structure, typically grain size, smaller than 100 nm. It gains exceptional strength from grain-boundary strengthening, but nanostructured steels make up only 0.05% of global production.

Nanoelectromechanical resonator

A nanoelectromechanical resonator is a nanoscale vibrating structure, such as a beam or graphene drum, coupled to electronics and used for mass, gas, and force sensing.

Nanoelectromechanical systems

Nanoelectromechanical systems (NEMS) are mechanical devices with critical dimensions in nanometers, built from materials like graphene and MoS₂ and reaching resonant frequencies into the gigahertz range.

Nanofiltration

Nanofiltration (NF) is a pressure-driven membrane separation process that removes divalent ions and small organic molecules from water, used for water softening, dye desalting, and food and pharmaceutical processing.

Nanoimprint lithography

Nanoimprint lithography (NIL) is a nanofabrication method in which a mold is pressed into resist to replicate features below 10 nm, first demonstrated by Stephen Y. Chou in 1995.

Nanokhod

Nanokhod is a small tracked, tethered European planetary microrover that carries instruments from a lander to targets tens of meters away, acting as an extended robotic arm.

Nanoleaf

Nanoleaf is a Canadian smart-lighting company headquartered in Toronto, founded in 2012, best known for modular LED wall panels, including the 2016 Aurora and the later Shapes.

Nanolithography

Nanolithography is the fabrication of nanometer-scale structures, used to build integrated circuits, photonic and biological devices. Its main techniques include EUV lithography, electron-beam lithography, and nanoimprint lithography.

Nanomaterials

Nanomaterials, also known as nanoscale materials, are materials with features between 1 and 100 nanometers that show properties differing from bulk matter, occurring naturally, incidentally, or by design.