61,984 articles
Pico y Placa
Pico y Placa is a driving restriction in Colombian and Ecuadorian cities that bans private vehicles on weekdays by license plate digit, first used in Bogotá in 1998.
PicoBlaze
PicoBlaze is a free 8-bit RISC soft microcontroller core for Xilinx, now AMD, FPGAs, written by Ken Chapman and known internally as KCPSM; every instruction executes in 2 clock cycles.
PicoRV32
PicoRV32 is a size-optimized open-source RISC-V CPU core written in Verilog, implementing RV32IMC and fitting in 750 to 2000 LUTs, licensed under the permissive ISC license.
Picotron
Picotron is a fantasy workstation by Lexaloffle Games, the studio behind PICO-8, for making pixel-art games, animations, music, and demos on Windows, macOS, or Linux.
Picsart
Picsart, also known as PicsArt Photo Studio, is an AI media platform for photo and video editing, design, and a creative community, founded in Armenia in 2011.
Picture window
A picture window is a large, usually fixed single-pane window with few or no glazing bars, placed to frame an attractive exterior view rather than to open for ventilation.
Picture-in-picture
Picture-in-picture (PIP) is a display feature that shows one video source in a small window overlaid on a larger main image, letting viewers watch two programs at once.
Picturephone
The Picturephone was a Bell System videotelephone service developed by Bell Labs, launched commercially in Pittsburgh in 1970 and withdrawn in 1973 after few subscribers.
PID controller design
PID controller design means structuring a feedback controller's proportional, integral, and derivative terms and tuning their gains so the closed loop meets targets for speed, overshoot, and robustness.
Pidgeon process
The Pidgeon process is a thermal reduction process that produces magnesium metal by reducing calcined dolomite with ferrosilicon in vacuum retorts, developed commercially in 1944 and now dominant in China.
Piece picking
Piece picking is a warehouse order fulfillment method in which workers or robots retrieve individual items, or pieces, to complete one customer order at a time, central to e-commerce fulfillment.
Piecewise constant curvature model
The piecewise constant curvature (PCC) model is a kinematic model for continuum robots that represents their shape as circular arcs, giving closed-form kinematics for real-time control.
Pied-à-terre
A pied-à-terre, French for "foot on the ground", is a small apartment kept for short stays in a city far from one's main home, a term used in English since the 1820s.
Piedmont Airlines
Piedmont Airlines is the name of two related American airlines: the original carrier acquired by USAir in 1989, and a current regional airline flying as American Eagle.
Piedmont Natural Gas
Piedmont Natural Gas is a Charlotte, North Carolina-based gas utility serving more than 1.1 million customers in the Carolinas and Tennessee, acquired by Duke Energy in 2016.
Piedra Del Aguila hydroelectric plant
The Piedra del Aguila hydroelectric plant is a 1,400 MW dam and power station on the Limay River in Neuquén and Río Negro, Argentina, operating since 1993.
Piedras Negras, Coahuila
Piedras Negras, also called Ciudad Porfirio Diaz, is a city in Coahuila, Mexico, on the Rio Grande across from Eagle Pass, Texas, founded in 1850.
Pieper's solution
Pieper's solution is a closed-form method for the inverse kinematics of six-degree-of-freedom robot manipulators with three consecutive intersecting or parallel joint axes, from Donald Pieper's 1968 Stanford thesis.
Pier
A pier is a structure extending approximately perpendicular from the shore into water, providing berthing for ships; the word also names pleasure piers at seaside resorts.
Pierce Oil and Gas Field
The Pierce Oil and Gas Field is an oil and gas field in the UK Central North Sea, discovered in 1975 and producing first oil in 1999.
Piercebridge Roman Bridge
Piercebridge Roman Bridge: remains of a Roman bridge carrying Dere Street over the River Tees at Piercebridge, County Durham/North Yorkshire. Two bridges existed; the stone-piered second, built early 3rd century, was found in 1972 and is a scheduled monument.
Pierre Armand Jacquet
Pierre Armand Jacquet (1906–1967) was a French chemical engineer and metallurgist who discovered electrolytic polishing in 1929, known as the Jacquet method, and named the Jacquet layer.
Pierre Baldi
Pierre Baldi is a computer scientist and Distinguished Professor at UC Irvine known for applying deep learning to biology, physics, and chemistry, including the DeepCubeA Rubik's Cube solver.
Pierre Bornard
Pierre Bornard is a French electric power engineer who was deputy chief executive of RTE, chaired the ENTSO-E board, and joined the US National Academy of Engineering in 2024.
Pierre Charles L'Enfant
Pierre Charles L'Enfant, also known as Peter L'Enfant, was a French-born architect and engineer who served in the Continental Army and designed the 1791 plan for Washington, D.C.
Pierre M. Ailleret
Pierre M. Ailleret (1900–1996) was a French electrical engineer who directed the interconnection of France's regional power grids and helped shape Électricité de France after 1946.
Pierre M. Beaujuge
Pierre M. Beaujuge, also published as Pierre Beaujuge, is a materials scientist at the KAUST Solar Center in Saudi Arabia, known for electrochromic polymers and organic solar cells.
Pierre Omidyar
Pierre Omidyar, born Pierre Morad Omidyar in Paris in 1967, is a French-born Iranian-American entrepreneur who founded eBay in 1995 and co-founded Omidyar Network in 2004.
Pierre Wolper
Pierre Wolper is a Belgian computer scientist born in Liège in 1955, known for automata-theoretic model checking, the 2000 Gödel Prize, and a term as Rector of the University of Liège.
Pierres précieuses sounding rockets
The Pierres précieuses were a family of French experimental solid-propellant rockets named after gemstones, including Agate, Topaze, and Saphir, that tested techniques for the Diamant satellite launcher.