edgepedia

Technology and the built world

61,984 articles

Nerfstudio

Nerfstudio is an open-source, modular PyTorch framework for developing, training, and deploying Neural Radiance Field (NeRF) methods, presented at SIGGRAPH 2023 by Matthew Tancik and colleagues from UC Berkeley.

Neri Merhav

Neri Merhav (נרי מרחב) is an Israeli information theorist and Technion professor known for universal prediction, mismatched decoding, and links between information theory and statistical physics.

Nero Decree

The Nero Decree, also known as the Nerobefehl, was a March 1945 order by Adolf Hitler directing the destruction of German infrastructure as Allied forces advanced.

Neros

Neros, also known as Neros Technologies, is an American defense drone manufacturer founded in 2023 in El Segundo, California, best known for its Archer FPV attack drones.

NERVA

NERVA (Nuclear Engine for Rocket Vehicle Application) was a joint NASA and Atomic Energy Commission program, from 1961 to 1973, to develop a nuclear thermal rocket engine.

Nerve agent

A nerve agent, also called nerve gas, is an organophosphorus chemical warfare agent that kills by inhibiting acetylcholinesterase; agents include sarin, tabun, soman, and VX.

Nervous network (BEAM robotics)

A nervous network in BEAM robotics is an analog control circuit of simple electronic neurons that replaces the microprocessor in a robot, invented by Mark W. Tilden.

Neryungrinskaya power station

The Neryungrinskaya power station (Нерюнгринская ГРЭС, Neryungrinskaya GRES) is a 570 MW coal-fired power station in Neryungri, Yakutia, Russia, operating since 1983 and run by RusHydro's DGK.

Nesbitt Hagood

Nesbitt W. Hagood IV is an American aeronautical engineer and former MIT professor who founded the Active Materials and Structures Laboratory and later the display company Pixtronix, acquired by Qualcomm.

Nesjavellir Power Station

The Nesjavellir Power Station (Nesjavallavirkjun) is a geothermal combined heat and power plant in southwest Iceland, 30 km east of Reykjavik, with 120 MW of electrical capacity.

Nest Learning Thermostat

The Nest Learning Thermostat is a Wi-Fi smart thermostat, first sold in 2011 by Nest Labs, that programs itself by learning occupants' routines and temperature preferences.

Neste

Neste (Neste Oyj) is a Finnish oil refining and renewable fuels company founded in 1948, and the world's leading producer of renewable diesel and sustainable aviation fuel.

Neste Rotterdam refinery

The Neste Rotterdam refinery is a renewable products refinery in the Port of Rotterdam, the Netherlands, producing renewable diesel and sustainable aviation fuel since 2011.

Neste Singapore refinery

The Neste Singapore refinery is a renewable products refinery in Tuas, Singapore, owned by Finland's Neste; opened in 2010, it became the world's biggest renewable diesel refinery after a 2023 expansion.

Nested RAID levels

Nested RAID levels, also written as RAID 0+1, build a disk array from other RAID arrays, combining mirroring and striping for better fault tolerance and performance.

Nesterov accelerated gradient

Nesterov accelerated gradient, also called Nesterov momentum, is an optimization method that evaluates the gradient at a look-ahead point, converging faster than plain gradient descent.

NestJS

NestJS, also called Nest, is an open-source TypeScript web framework for building server-side applications on Node.js, created in 2017 by Kamil Myśliwiec and structured around modules, dependency injection, and decorators.

Net bag

A net bag is a carrier made of mesh, an open fabric of knotted or woven cords, used worldwide as a working container and fashion accessory.

Net load

Net load, also called net demand or residual load, is total electricity demand minus wind and solar output, and its volatility shapes how much flexibility a grid needs.

Net metering

Net metering, also called net energy metering, is a utility billing program that lets rooftop solar owners offset billed electricity with power they export to the grid.

NET Mexico Gas Pipeline

The NET Mexico Gas Pipeline is a 120-mile Texas intrastate natural gas pipeline from the Agua Dulce Hub to the U.S.-Mexico border, opened in December 2014.

Net neutrality

Net neutrality is the principle that internet service providers treat all data traffic equally by not blocking, throttling, or selling faster delivery, a term Tim Wu coined in 2003.

Net neutrality in the United States

Net neutrality in the United States is the debate over whether broadband providers should be barred from controlling consumers' use of networks or discriminating against content providers.

Net neutrality law

Net neutrality law governs whether internet service providers must treat all traffic equally, without blocking, throttling, or paid prioritization; the term was coined by Tim Wu in 2003.

Net positive suction head

Net positive suction head (NPSH) is the margin by which a liquid's pressure at a pump inlet exceeds its vapor pressure, used to judge whether the pump will cavitate.

Net Power

Net Power is a Houston-based energy technology company founded in 2010 to generate natural gas power with near-total carbon capture, using its proprietary Allam-Fetvedt Cycle.

Net revenue retention

Net revenue retention (NRR), also called net dollar retention, is a subscription metric measuring recurring revenue kept from existing customers after expansion, contraction, and churn.

Net tonnage

Net tonnage (NT) is a dimensionless measure of a ship's useful, revenue-earning capacity, defined by the 1969 Tonnage Convention and widely used as the basis for canal dues.

Net Zero Investment Framework

The Net Zero Investment Framework (NZIF) is a guide from the Institutional Investors Group on Climate Change for aligning investor portfolios with net zero by 2050.

Net-Zero Asset Managers initiative

The Net-Zero Asset Managers initiative (NZAM) is a voluntary group of asset managers committed to investing in line with net zero greenhouse gas emissions, launched in December 2020.