61,984 articles
PubMed
PubMed is a free search engine and database of biomedical and life sciences literature, with over 40 million citations, run by the National Library of Medicine since 1996.
PubMed Central
PubMed Central is a free full-text archive of biomedical and life sciences journal literature run by the National Library of Medicine, online since 2000 and holding more than 10 million articles.
Pubugou hydroelectric plant
Pubugou hydroelectric plant (瀑布沟水电站) is a 3,600 MW hydroelectric station on the Dadu River in Sichuan, China, whose six units were all commissioned in 2010.
Pucheng power station
Pucheng power station (华电蒲城发电厂) is a six-unit coal-fired power station of about 2,580 MW at Sun Town in Pucheng County, Weinan, Shaanxi, China, built in phases from 1996 to 2008.
Puckle gun
The Puckle gun was a tripod-mounted flintlock firearm with a hand-turned revolving cylinder, patented in London by James Puckle in 1718 and often described as an early machine gun.
Pudgy Penguins
Pudgy Penguins is a global entertainment and consumer-products brand that began as a collection of 8,888 penguin NFTs on Ethereum in July 2021, since expanded into toys and games.
Pueblo Chemical Depot
Pueblo Chemical Depot was a United States Army installation near Pueblo, Colorado, that stored the nation's mustard agent stockpile until it was destroyed in 2023.
Pueblo Grande Ruin and Irrigation Sites
Pueblo Grande Ruin and Irrigation Sites, or Pueblo Grande Museum Archaeological Park, is a National Historic Landmark in Phoenix, Arizona, preserving a Hohokam village and canals.
Pueblo Viejo hydroelectric plant
The Pueblo Viejo hydroelectric plant, commonly known as the Chixoy Dam, is a 300 MW hydroelectric facility on the Chixoy River in Guatemala, built from 1977 to 1983.
Puente de la Mujer
Puente de la Mujer (Spanish for "Woman's Bridge") is a cable-stayed swing footbridge over Dock 3 of Puerto Madero, Buenos Aires, designed by Santiago Calatrava and inaugurated in 2001.
Puente de Reparacea
Puente de Reparacea (Erreparazea): medieval single-arch stone bridge over the river Bidasoa at Oieregi, Bertizarana, Navarra, Spain; 22 m span, hump-backed profile, possibly Roman origin, declared Bien de Interés Cultural in 2009.
Puente del Bibey
Puente del Bibey (Ponte Bibei), a Roman three-arch granite bridge over the river Bibei between A Pobra de Trives (Ourense) and Quiroga (Lugo), Spain, built on the Via Nova, traditionally under Trajan, still carrying road OU-636 and declared a monument in 1931.
Puente Mayor del Tormes
Puente Mayor del Tormes (Puente Romano), Salamanca's Roman bridge of the 1st century AD on the Vía de la Plata: 26 arches, 15 Roman, about 350 m long, pedestrian since 1973.
Puente Nuevo
The Puente Nuevo ("New Bridge") is an 18th-century masonry bridge in Ronda, Spain, spanning the 90-meter-deep Tajo gorge to link the old town with the Mercadillo district.
Puente romano de Alconetar
Puente romano de Alconetar (Puente de Mantible): ruined Roman bridge over the Tajo at Garrovillas de Alconétar, Cáceres, on the Vía de la Plata; segmental-arch bridge of the 1st-2nd century AD, relocated stone by stone in 1969 when the Alcántara reservoir flooded its site.
Puente sobre el Arroyo Rabanales
Puente sobre el Arroyo Rabanales, a Roman-origin five-arch bridge over the Arroyo Rabanales at Las Quemadas, Córdoba, Spain, on the Via Augusta; carried the N-IV road until 1928, now abandoned and deteriorated.
Puerto La Cruz refinery
The Puerto La Cruz refinery (Refinería de Puerto La Cruz) is a Venezuelan crude oil refinery in Anzoátegui state, eastern Venezuela, built by Gulf Refining and operated by PDVSA since nationalization in 1976.
Puerto Peñasco Solar Project
The Puerto Peñasco Solar Project (Central Fotovoltaica Puerto Peñasco) is a solar power plant built by Mexico's utility CFE near Puerto Peñasco, Sonora, planned to reach 1,000 MW.
Puerto power station
The Puerto power station is a thermal power complex in the port of Buenos Aires, Argentina, with 1,747 MW of installed capacity, owned by Central Puerto.
Puerto Rico Electric Power Authority
The Puerto Rico Electric Power Authority (PREPA; Spanish: Autoridad de Energía Eléctrica) is Puerto Rico's public power corporation, the sole electric utility serving about 1.5 million customers.
Puerto Rico Highway 52
Puerto Rico Highway 52, officially the Luis A. Ferré Highway, is a toll highway running 67 miles from San Juan to Ponce, the island's longest toll road.
Puerto Rico Highway 53
Puerto Rico Highway 53 (PR-53), officially the José Celso Barbosa Highway, is a toll expressway in eastern Puerto Rico running 59.3 km from Fajardo through Humacao to Yabucoa.
Puerto Rosales-La Plata Oil Pipeline
The Puerto Rosales-La Plata oil pipeline is an Argentine crude oil pipeline running 585 kilometers from the Atlantic coast to the La Plata refinery, operated by YPF.
Puertollano renewable fuels plant
The Puertollano renewable fuels plant is a Repsol facility in Ciudad Real, Spain, which began producing 200,000 metric tons of renewable diesel per year from organic waste in May 2026.
PUFFER (robot)
PUFFER, or Pop-Up Flat Folding Explorer Robot, is a palm-sized, origami-inspired wheeled rover developed at NASA's Jet Propulsion Laboratory that can flatten its body to crawl into steep, risky terrain.
Puffin crossing
A puffin crossing is a British signal-controlled pedestrian crossing whose sensors detect waiting pedestrians, varying the crossing time and canceling calls when someone walks away.
Puffin-World
Puffin-World is a unified multimodal world model released as a 2026 academic preprint, representing 3D scenes through explicit gravity, depth, and appearance states rather than RGB frames alone.
Puffing Billy (locomotive)
Puffing Billy is an early British steam locomotive built in 1813–1814 at Wylam Colliery near Newcastle by William Hedley, and the world's oldest surviving steam locomotive, preserved in London.
Puget Sound Energy
Puget Sound Energy is an investor-owned utility headquartered in Bellevue, Washington, serving about 1.1 million electric and 800,000 gas customers; its gas business dates to 1873, and its present name was adopted in 1997.
Puget Sound Naval Shipyard
Puget Sound Naval Shipyard, also known as the Bremerton Navy Yard, is a US Navy shipyard in Bremerton, Washington, established in 1891 and designated a shipyard in 1901.