edgepedia

Technology and the built world

61,984 articles

Poki (website)

Poki is a Dutch web gaming platform based in Amsterdam offering free browser games without downloads, launched in 2014 by Bas Moeys and Michiel van Amerongen.

Pokoch Oil and Gas Field

Pokoch is a shallow-water oil and gas field in the Gulf of Mexico, 42 kilometers off Campeche, Mexico, developed with the Ichalkil field and producing since 2021.

Pokpung-ho (폭풍호)

Pokpung-ho (폭풍호, "Storm Tiger") is the Western name for North Korea's most modern main battle tank, developed in the 1990s from Soviet T-72 technology; its chassis also carries ballistic missile launchers.

Pokrovskoye Oil Field

Pokrovskoye Oil Field (Покровское месторождение) is a large oil and gas field in Orenburg Oblast, Russia, about 80 km northeast of Buzuluk, discovered in 1959 and developed since 1963.

Pol D. Spanos

Pol D. Spanos is a Greek-born mechanical engineer at Rice University known for stochastic dynamics and structural reliability, elected to the National Academy of Engineering in 2005.

Pol Duwez

Pol Duwez (1907–1984) was a Belgian-born American materials scientist and Caltech professor who discovered metallic glasses by splat quenching, first reported in a 1960 gold–silicon alloy.

Poland-Slovakia Gas Pipeline

The Poland-Slovakia Gas Pipeline, formally the Gas Interconnector Poland-Slovakia (GIPS), is a bidirectional gas pipeline linking Strachocina in Poland with Veľké Kapušany in Slovakia, opened in 2022.

Polaniec power station

Polaniec power station (Elektrownia Połaniec) is a hard-coal-fired power plant with a large biomass unit at Zawada near Połaniec, Poland, on the Vistula, commissioned in 1979 and owned by the Enea Group since 2017.

Polar Bear Express

The Polar Bear Express is an Ontario Northland passenger train running 299 kilometers between Cochrane and Moosonee, Ontario, carrying passengers and supplies to the James Bay coast since 1964.

Polar code

A polar code is an error-correcting code that provably achieves channel capacity by polarizing bit-channels into reliable and unreliable ones, used in 5G control channels.

Polar codes

Polar codes are error-correcting codes invented by Erdal Arıkan in 2009, the first proved to achieve channel capacity; 3GPP selected them in 2016 for 5G control channels.

Polar Electro

Polar Electro is a Finnish sports technology company headquartered in Kempele, founded in 1977 by Seppo Säynäjäkangas, which introduced the first wireless heart rate monitor in 1983 and sells sports watches and activity trackers.

Polar Icebreaker Project

The Polar Icebreaker Project, also called the Polar Class Icebreaker Project, is a Canadian Coast Guard program launched in 2008 to build two heavy polar icebreakers for year-round Arctic operations.

Polar modulation

Polar modulation is a transmitter technique that splits a radio signal into envelope and phase components processed separately and recombined in an efficient power amplifier, underlying Kahn's 1952 EER method.

Polar orbit

A polar orbit is an orbit inclined 90 degrees in which a spacecraft passes over both poles, the standard choice for Earth mapping and environmental monitoring.

Polar route

A polar route, or transpolar route, is an air route crossing the polar regions, mainly Arctic flights between North America and Asia that save time and fuel.

Polar Satellite Launch Vehicle (ध्रुवीय उपग्रह प्रक्षेपण यान)

The Polar Satellite Launch Vehicle, also known as ध्रुवीय उपग्रह प्रक्षेपण यान or PSLV, is a four-stage Indian rocket developed by ISRO, first flown in 1993 as its workhorse launcher.

PolarDC Group

PolarDC Group, known as Polar, is a Norway-based developer, owner, and operator of hydroelectric-powered data centers for AI and high-performance computing tenants, controlled by H.I.G. Capital since October 2024.

Polarimetric calibration

Polarimetric calibration is the procedure that estimates and removes polarization-dependent distortion in a radar or optical polarimeter, correcting cross-talk and channel imbalance in synthetic aperture radar and instruments such as POLDER.

Polarimetric decomposition

Polarimetric decomposition is a radar remote sensing technique that separates polarimetric SAR measurements into surface, volume, and double-bounce scattering, supporting land cover classification, biomass, and soil moisture retrieval.

Polarimetric SAR

Polarimetric SAR (PolSAR) is a radar remote sensing technique that measures the scattering matrix of every pixel, so received power can be synthesized for any transmit and receive polarization.

Polarimetric weather radar

Polarimetric weather radar, also called dual-polarization or dual-pol radar, transmits pulses polarized both horizontally and vertically to measure particle size, shape, and composition; the US NEXRAD network was upgraded between 2011 and 2013.

Polaris Inc.

Polaris Inc., formerly Polaris Industries, is an American powersports vehicle manufacturer headquartered in Medina, Minnesota. Founded in 1954, it makes RZR and RANGER off-road vehicles, snowmobiles, and Slingshot roadsters.

Polaris Slingshot

The Polaris Slingshot is a three-wheeled, open-cockpit roadster built by Polaris of Minnesota. Launched in 2014, it is classified in the United States as a three-wheeled motorcycle.

Polarization curve analysis

Polarization curve analysis is the interpretation of a fuel cell's voltage-versus-current curve to separate reaction kinetics, ohmic resistance, and mass transport losses, and is the standard way to track degradation over a stack's life.

Polarization mode dispersion compensation

Polarization mode dispersion compensation covers optical, electrical, and digital techniques that reduce impairment from differential group delay between polarization modes in fiber transmission, which causes outages at high bit rates.

Polarization mode dispersion measurement

Polarization mode dispersion measurement is the set of techniques used to measure the differential group delay that birefringence causes between the two polarization modes of a single-mode optical fiber.

Polarization-division multiplexing

Polarization-division multiplexing (PDM) is a technique in optical and wireless communications that doubles capacity by sending two independent channels on orthogonal polarizations of one carrier.

Polarized light guidance

Polarized light guidance uses light's polarization rather than its intensity as a navigation cue, from desert ants' skylight compass to polarized beacons guiding industrial driverless vehicles.

Polarized sunglasses

Polarized sunglasses contain a polarizing filter that blocks the horizontally polarized light making up glare from water, roads, and car hoods, cutting glare instead of dimming all light.