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Philipsdam
The Philipsdam is a 7-kilometer dam in the Netherlands, part of the Delta Works flood-defense system, built between 1976 and 1987 to separate the freshwater Volkerak-Zoommeer from the saltwater Oosterschelde.
Phillip B. Messersmith
Phillip B. Messersmith is a materials scientist and bioengineer at the University of California, Berkeley, known for mussel-inspired adhesives, including a 2007 Science paper on polydopamine coatings.
Phillip Eisenberg
Phillip Eisenberg was an American naval hydrodynamics researcher known for his work on cavitation, which erodes ship propellers. He headed research at the David Taylor Model Basin and co-founded Hydronautics, Inc., in 1959.
Phillip Paulwell
Phillip Paulwell is a Jamaican politician of the People's National Party who has represented Kingston Eastern and Port Royal since 1997 and liberalized Jamaica's telecommunications sector as minister.
Phillip S. Myers
Phillip S. Myers (1916–2006) was an American mechanical engineer and University of Wisconsin–Madison professor who pioneered measuring temperatures inside engine combustion cylinders and co-founded its Engine Research Center.
Phillips 66
Phillips 66 is an American integrated downstream energy company headquartered in Houston, Texas, spun off from ConocoPhillips as an independent company in 2012, with refining, midstream, and chemicals operations.
Phillips Petroleum
Phillips Petroleum was an American integrated oil and gas company incorporated at Bartlesville, Oklahoma, in 1917, which made the first economic oil discovery off Norway before merging with Conoco in 2002.
Philo Farnsworth
Philo Taylor Farnsworth (1906–1971) was an American inventor who conceived electronic television at 14, transmitted his first image in 1927, and defeated RCA over his 1930 patent.
PhiSNet
PhiSNet is an SE(3)-equivariant neural network introduced by Unke and colleagues in 2021 that predicts molecular wavefunctions, Hamiltonian matrices, and electronic densities directly from molecular geometry.
PHL-16
The PHL-16, also designated PCL-191, PHL-191, or PCH-191, is a truck-mounted multiple rocket launcher of the Chinese People's Liberation Army, first shown at the 2019 National Day parade.
Phnom Penh International Airport
Phnom Penh International Airport, long known as Pochentong Airport, was Cambodia's principal international gateway. Opened in 1959, it closed in September 2025, replaced by Techo International Airport.
Phobos 2
Phobos 2 was a Soviet unmanned spacecraft launched in 1988 to explore Mars and its moon Phobos; contact was lost in March 1989 before its landers deployed.
Phoenix Games B.V.
Phoenix Games B.V. was a Dutch video game publisher of budget-priced PlayStation, Nintendo, and PC games, later part of the Phoenix Games Group, which has ceased trading.
Phoenix Sky Harbor International Airport
Phoenix Sky Harbor International Airport is the primary commercial airport of Phoenix, Arizona, founded in 1928 and serving over 51 million passengers in 2025 as America's Friendliest Airport.
Phoenix Technologies
Phoenix Technologies is an American firmware company founded in 1979, best known for PhoenixBIOS, the first legally licensable IBM PC compatible BIOS, which made the 1980s clone industry possible.
Phonautograph
The phonautograph is a device invented by French typographer Édouard-Léon Scott de Martinville, patented in 1857, that recorded airborne sound as tracings on soot but could not play it back.
Phone cloning
Phone cloning, also called telephone cloning, is copying a cellular phone's identity onto a second handset so calls are billed to the victim, widespread in the 1990s.
Phone connector (audio)
The phone connector, also known as the audio jack, is a cylindrical audio plug with tip, ring, and sleeve contacts, common in 6.35 mm and 3.5 mm sizes.
Phone hacking
Phone hacking, also known as voicemail hacking, is unauthorized access to a mobile phone, its accounts, or its communications, by software exploits, signaling abuse, or stolen credentials.
Phone patch
A phone patch is a device connecting a radio station to the telephone line, allowing conversation between the two; in amateur radio the autopatch lets repeater users place calls.
Phoneme recognition
Phoneme recognition is the task of identifying phonemes, the distinct sound units of a language, in speech audio, forming the acoustic core of automatic speech recognition.
Phonograph
The phonograph, also known as the record player or gramophone, is a machine that records sound as a groove and plays it back, patented by Thomas Edison in 1878.
Phonograph and gramophone museums
Phonograph and gramophone museums are institutions whose core holdings are mechanical sound-reproduction machines and playable records, ranging from the Kanazawa Phonograph Museum to private collections in Kerala and China.
Phonograph cylinder
The phonograph cylinder, or wax cylinder, is a cylindrical sound recording medium engraved with a helical groove, the first commercial recorded-sound format, dominant until discs displaced it by about 1910.
Phonograph horn
The phonograph horn is the flared conduit that carried sound from a phonograph's diaphragm to the listener, serving as the machine's only amplification before electrical amplification.
Phonograph record
A phonograph record, also called a vinyl record or gramophone disc, is an analog sound medium storing audio as a spiral groove on a rotating disc.
Phononic metamaterial
A phononic metamaterial is an engineered composite material that controls mechanical waves through its structure rather than its composition, creating bandgaps where waves cannot travel, and enabling vibration isolation, acoustic filtering, and seismic shielding.
Phonopy
Phonopy is an open-source Python package for calculating phonon properties of crystalline solids from first-principles forces, developed by Atsushi Togo and Isao Tanaka of NIMS and Kyoto University.
PhosAgro
PhosAgro is a vertically integrated Russian fertilizer producer, incorporated in 2001, ranking third globally in phosphate fertilizer capacity and selling to more than 100 countries.
Phosphate glass
Phosphate glass is a glass in which phosphorus pentoxide, not silica, forms the network, allowing compositions used in high-power lasers, hermetic seals, nuclear waste hosts, and resorbable biomedical implants.