edgepedia

Technology and the built world

61,984 articles

Peggy Whitson

Peggy Whitson, born 1960, is an American astronaut who logged a US-record 675 days in space and became the first woman to command the International Space Station, twice.

Peide D. Ye

Peide D. Ye is an electrical engineer and professor at Purdue University known for research on 2D channel materials like phosphorene, negative-capacitance transistors, and oxide electronics.

Peidong Yang

Peidong Yang (杨培东) is a chemist and materials scientist at UC Berkeley, known for the first nanowire nanolaser and artificial photosynthesis converting CO2 into fuels.

Peixe Angical Hydroelectric Plant

Peixe Angical Hydroelectric Plant (Usina Hidrelétrica Peixe Angical) is a hydroelectric power station on the Tocantins River in Brazil, operating since 2006 with 498.75 MW installed capacity.

Pelabuhan Ratu power station

Pelabuhan Ratu power station (PLTU Pelabuhan Ratu, Jawa Barat 2) is a 1,050 MW coal-fired power plant at Sukabumi, West Java, owned by PLN and commissioned in 2013.

Pelamis wave energy converter

The Pelamis wave energy converter was a floating, articulated wave energy device that in 2004 became the first offshore wave converter to supply a national grid.

Peleș Castle

Peleș Castle, Romanian: Castelul Peleș, is a German Neo-Renaissance royal castle in Sinaia, Romania, built from 1873 to 1914 as the summer residence of King Carol I.

Pelican crossing

A pelican crossing is a British push-button signal-controlled pedestrian crossing, introduced in 1969, named from PEdestrian LIght CONtrolled crossing and marked by a flashing amber phase for drivers.

Pelican Lake (Alberta oil project)

Pelican Lake is a heavy crude oil field in north-central Alberta, Canada, discovered in 1978 and known as the first successful polymer flood in heavy oil.

Pelican South

Pelican South is a natural gas field in the Neptun Deep block, about 160 km offshore in the Romanian sector of the Black Sea, discovered in 2014.

Pelindaba

Pelindaba is South Africa's main nuclear research site west of Pretoria, where Necsa operates the SAFARI-1 reactor and once ran the country's secret nuclear weapons program.

Pelješac Bridge

The Pelješac Bridge (Pelješki most) is a 2,404 m cable-stayed road bridge in southern Croatia, opened in July 2022 to bypass Bosnia's Neum corridor with 85 percent EU funding.

Pellet (air gun)

A pellet, also called an airgun pellet, is the non-spherical projectile fired from an air gun, typically a waisted lead diabolo stabilized by aerodynamic drag rather than spin.

Pellet-cladding interaction

Pellet-cladding interaction (PCI) is a nuclear fuel failure mechanism in which expanding fuel pellets and iodine crack reactor cladding, a major reliability issue of the 1970s.

Pelletizing

Pelletizing is an agglomeration process that converts fine powders, most importantly iron ore concentrate, into near-spherical pellets by rolling moist material in discs or drums and firing them.

Peloton Technology

Peloton Technology was a Silicon Valley company founded in 2012 that developed truck platooning systems for semi-trucks, reaching fleet customers before ceasing operations in 2021.

Pelton wheel

The Pelton wheel, also called the Pelton turbine, is an impulse-type water turbine Lester Allan Pelton invented in the California gold fields in the 1870s, best suited to high head and low flow.

Pelyatkinskoye Gas and Condensate Field

Pelyatkinskoye Gas and Condensate Field (Пеляткинское месторождение) is a gas field in Krasnoyarsk Territory, Russia, supplying about 80 percent of the gas produced on Taimyr for Norilsk.

Pembina Gas Infrastructure

Pembina Gas Infrastructure is a western Canadian natural gas processing company created in 2022, owned 60 percent by Pembina Pipeline and 40 percent by Apollo funds.

Pembina Oil and Gas Field

The Pembina Oil and Gas Field is a giant light-oil field in west-central Alberta, about 113 km southwest of Edmonton. Discovered in 1953, it became Canada's largest conventional oilfield.

Pembroke Castle

Pembroke Castle (Castell Penfro) is a medieval castle in Pembroke, Wales, founded by the Normans in 1093 and the birthplace of Henry VII in 1457.

Pembroke power station

Pembroke power station is a combined-cycle gas turbine plant at Pembroke, Pembrokeshire, Wales, owned by RWE; opened in 2012, its 2,181 MW makes it one of Europe's largest and most efficient.

Pemex

Pemex, also known as Petróleos Mexicanos, is Mexico's state-owned oil and gas company, created in 1938 after the national oil expropriation to explore, produce, refine, and sell fuels.

Pen

A pen is a handheld writing instrument that applies ink, paste, or gel through a shaped tip, replacing the dipping that quill and reed pens required.

Pena Palace

Pena Palace (Palácio Nacional da Pena) is a Romanticist palace in the Sintra Hills of Portugal, built by King Ferdinand II between 1840 and 1854 atop a 16th-century monastery.

Penang Bridge

The Penang Bridge (Jambatan Pulau Pinang) is a 13.5 km toll bridge in Malaysia linking Gelugor on Penang Island with Prai on the mainland, opened in 1985 as the island's first land link.

Penang International Airport

Penang International Airport, also known as Bayan Lepas International Airport, is an international airport in Bayan Lepas, 16 km south of George Town, the capital of Penang, Malaysia.

Pencil

A pencil, also called a graphite pencil, is a writing and drawing implement whose graphite-and-clay core marks by abrasion, held in a wood, plastic, or paper casing and erased with an eraser.

Pencil lead

Pencil lead is the writing core of a pencil, a graphite and clay rod that leaves an erasable black mark and contains no actual lead.

Pendolino

Pendolino is a family of tilting high-speed electric trains developed by Fiat Ferroviaria and now built by Alstom, running in over 400 trainsets across 14 countries.