All articles starting with P
28,818 articles
Pit thermal energy storage
A pit thermal energy storage (PTES) is a large excavated water reservoir lined with polymer and covered with an insulating lid, storing heat for district heating networks across seasons.
Pit viper
Pit viper (Crotalinae), venomous viperid snakes with heat-sensing loreal pits between eye and nostril; over 190 species, TRPA1-based infrared detection, rattlesnakes and copperheads among members.
PIT-CNT
The PIT-CNT, the Plenario Intersindical de Trabajadores – Convención Nacional de Trabajadores, is Uruguay's national trade union center, founded on 1 May 1983 under the dictatorship.
Pit-house
A pit-house is a dwelling whose floor is excavated below the ground surface, common in the ancient American Southwest from about 200 BC to AD 700.
Pita
Pita, also khobz arabi or Arabic bread, is a circular leavened double-layered Middle Eastern flatbread whose steam-formed pocket forms during 400 °C baking; used as pocket, wrap, scoop, and bowl.
Pita Taufatofua
Pita Taufatofua (Pita Nikolas Taufatofua), Tongan athlete born 1983 in Perth; taekwondo heavyweight at Rio 2016 and Tokyo 2020, cross-country skier at Pyeongchang 2018, and shirtless coconut-oiled flag bearer at four opening ceremonies including Milan Cortina 2026.
Pitangus
Pitangus is a genus of kiskadee tyrant flycatchers (Tyrannidae), chiefly the Great Kiskadee Pitangus sulphuratus, an omnivorous, boldly patterned Neotropical bird, invasive in Bermuda and an agricultural pest in its native range.
Pitassa
Pitassa was a Bronze Age land of central-southwestern Anatolia, known only from Hittite cuneiform texts and never securely identified; one study places it in the Afyonkarahisar–Isparta–Burdur area.
Pitatus (lunar crater)
Pitatus, lunar crater on the southern edge of Mare Nubium at 29.9S 13.5W, about 100 km wide; a Class 6 floor-fractured, lava-flooded crater with Rimae Pitatus, named for astronomer Pietro Pitati.
Pitavastatin
Pitavastatin (Livalo) is a synthetic HMG-CoA reductase inhibitor statin launched in Japan in 2003 and FDA-approved in 2009; 1–4 mg daily doses lower LDL-C 28–47% with low CYP interaction risk.
Pitaya
Pitaya, or dragon fruit (Selenicereus undatus, formerly Hylocereus undatus), is the fruit of night-blooming climbing cacti native from Mexico to Honduras; self-incompatible cultivars need cross-pollination, and Vietnam leads production.
Pitbull (rapper)
Pitbull (Armando Christian Pérez, born 1981, Miami) is a Cuban American rapper known as Mr. 305 and Mr. Worldwide, whose hits include Give Me Everything and Timber, with a Grammy for Dale (2015) and the SLAM charter schools.
Pitbull discography
Pitbull discography: Miami rapper Armando Christian Perez's studio albums, M.I.A.M.I. (2004) through Pitcoin (2026), 14 LPs; platinum run Planet Pit, Global Warming, Globalization; Grammy-winning Dale; Timber 12x platinum.
Pitcairn Islands
The Pitcairn Islands, formally the Pitcairn, Henderson, Ducie, and Oeno Islands, are a British Overseas Territory in the South Pacific where about 40 people, descended from the Bounty mutineers, live on Pitcairn alone.
Pitcairn PCA-2
The Pitcairn PCA-2, or Pitcairn-Cierva PCA-2, was an American autogiro first flown in 1930 and the first rotary-wing aircraft certified for commercial use in the United States.
Pitcairnioideae
Pitcairnioideae, a subfamily of Bromeliaceae (bromeliads), traditionally the terrestrial, spiny-leaved group with dry capsules and winged seeds; molecular work split it, leaving five genera including Pitcairnia, Dyckia, and Deuterocohnia.
Pitch
Pitch is an English word with several senses, often involving spacing or orientation: musical frequency, vehicle rotation, slope, a sports field, and a sales pitch.
Pitch (baseball)
Pitch (baseball): the pitcher's throw to a batter from 60 feet 6 inches, judged against the strike zone; includes fastball, breaking ball, and offspeed types, Magnus-effect flight, and history from underhand 1845 rules to ABS.
Pitch (music)
Pitch (音高) is the perceptual attribute of sound ordered from low to high, tied mainly to frequency and fundamental periodicity. Covers the missing fundamental, 20 Hz–20 kHz hearing range, 0.3% discrimination, A440/ISO 16 standard, and Chinese lü pitch pipes.
Pitch (resin)
Pitch is a thick, dark-colored bituminous substance, the heavy residue left when tar or petroleum is distilled. Solid at room temperature, it binds carbon electrodes for aluminum smelting and serves as a precursor for carbon fiber.
Pitch (ship motion)
Pitch is the rotational oscillation of a ship about its transverse axis, one of six degrees of freedom, governing seakeeping in head seas and slamming.
Pitch (TV series)
Pitch (TV series), Fox sports drama (2016) created by Dan Fogelman and Rick Singer, starring Kylie Bunbury as Ginny Baker, the first woman in MLB, pitching for the San Diego Padres; canceled after one season in May 2017.
Pitch and loudness coding in the auditory system
Pitch and loudness coding in the auditory system is how frequency and intensity are represented via cochlear place codes and phase-locked spike timing, which fails above a few kHz.
Pitch angle scattering
Pitch angle scattering is the random change of a charged particle's angle to the magnetic field, controlling how energetic particles diffuse and precipitate in magnetized plasmas.
Pitch Black (film)
Pitch Black (2000) is a David Twohy sci-fi horror film starring Vin Diesel as escaped convict Riddick, survivors of a crash on a planet plunged into deadly eclipse darkness; $23M budget, $53.2M gross, first Riddick franchise film.
Pitch Black (group)
Pitch Black is a New Zealand electronic music duo formed in 1996 by Paddy Free and Michael Hodgson, known for a style called ambient dub or "digi-dub".
Pitch drop experiment
The pitch drop experiment is a demonstration at the University of Queensland, running since 1927, in which pitch drips from a funnel about once a decade.
Pitch Johnson
Pitch Johnson, or Franklin P. Johnson Jr., is an American venture capitalist who co-founded Draper and Johnson in 1962 and founded Asset Management Company in 1965.
Pitch Music & Arts
Pitch Music & Arts, also known as Pitch Festival, is an annual electronic music, arts, and camping festival held each March at Moyston in Victoria, Australia, since 2017.
Pitch Perfect
Pitch Perfect is a 2012 American musical comedy film directed by Jason Moore, starring Anna Kendrick as a college student who joins an a cappella group.