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Sini Oil and Gas Field
The Sini Oil and Gas Field is an onshore field in Tabasco, Mexico, discovered in 2012 and operated by Petróleos Mexicanos (Pemex), producing super light crude oil and wet gas.
Sink
A sink is a bowl-shaped plumbing fixture supplied by a faucet and drained through a trap, used for washing hands, dishes, and food in kitchens and bathrooms.
Sinking of KM Sinar Bangun
The sinking of KM Sinar Bangun was the capsizing of an overloaded wooden ferry on Lake Toba, Indonesia, on 18 June 2018, leaving 164 missing.
Sinking of the Herald of Free Enterprise
The sinking of the Herald of Free Enterprise was the capsizing of a British roll-on/roll-off ferry in 1987. It killed 193 people and reshaped maritime safety rules.
Sinking of the SS Andrea Doria
The sinking of the SS Andrea Doria, an Italian Line ocean liner, occurred off Nantucket in July 1956 after a collision with the Swedish motorship Stockholm; 51 died.
Sinking of the Titanic
The sinking of the Titanic, also called the Titanic disaster, killed about 1,500 people in the North Atlantic after the liner struck an iceberg on 14 April 1912.
Sinking, joints and closure in immersed tube tunnels
Sinking, joints and closure in immersed tube tunnels covers how prefabricated tunnel elements are lowered onto the seabed, sealed with Gina and Omega gaskets, and closed at the final joint.
Sino-Myanmar Oil Pipeline
The Sino-Myanmar Oil Pipeline (中缅原油管道) is a crude oil pipeline running from Maday Island at Kyaukphyu, Myanmar, to Kunming in China's Yunnan province, opened commercially in 2017.
Sinoma Lithium Battery Separator (Zhongcai Lithium Film)
Sinoma Lithium Battery Separator (中材锂膜) is a Chinese maker of wet-process lithium battery separators, founded in 2016 as a subsidiary of Sinoma Science & Technology.
Sinon (software)
Sinon.JS, commonly installed as sinon, is a standalone JavaScript library for test doubles, providing spies, stubs, and mocks that work with any unit testing framework.
Sinopec
Sinopec, formally China Petroleum & Chemical Corporation, is a Chinese state-owned energy company, the world's largest oil refiner, ranked sixth in the 2025 Fortune Global 500.
Sinotruk
Sinotruk (中国重汽), formally China National Heavy Duty Truck Group, is a Chinese heavy-truck maker founded in 1956 in Jinan, Shandong, and known for HOWO trucks.
Sintering
Sintering is a manufacturing process that heats compacted powder below its melting point, bonding particles into a solid piece, used chiefly for ceramics and powder metallurgy.
Sinusoidal pulse-width modulation
Sinusoidal pulse-width modulation is a modulation technique that controls a DC-AC inverter by comparing a sinusoidal reference with a high-frequency triangular carrier, reducing output harmonics.
Sion Power
Sion Power Corporation is a privately held battery developer in Tucson, Arizona, founded in 1989, that makes Licerion lithium-metal cells, now aimed mainly at defense and aerospace.
Sionna
Sionna is an open-source, GPU-accelerated library built on TensorFlow and developed by NVIDIA for link-level simulation of wireless systems, introduced in 2022 for 5G and 6G research.
Sioux Power Plant
The Sioux Power Plant, also called the Sioux Energy Center, is a 1,099-megawatt coal-fired power station in West Alton, Missouri, whose two units went online in 1967 and 1968.
SIP trunking
SIP trunking connects an organization's IP-based phone system, such as an IP-PBX, to the public switched telephone network over a SIP session from a provider.
Sip-and-puff
Sip-and-puff is an assistive technology input method in which a user controls devices by inhaling or exhaling through a mouthpiece, serving people with limited hand function.
Sipat power station
Sipat power station, or Sipat Super Thermal Power Station, is a 2,980 MW coal-fired power station operated by NTPC at Sipat in Bilaspur district, Chhattisgarh, India.
Siphon recorder
The siphon recorder, also written syphon recorder, is an instrument for receiving signals on submarine telegraph cables, invented by William Thomson, later Lord Kelvin, in 1867.
Siphon spillway
A siphon spillway is a closed conduit over a dam crest that passes flood water by siphonic action, with no moving parts and minimal rise in reservoir level.
Sir John Adams
Sir John Adams, born John Bertram Adams (24 May 1920 – 3 March 1984), was a British accelerator engineer who, despite having no university degree, directed construction of CERN's Proton Synchrotron and Super Proton Synchrotron.
Sir John Soane's Museum
Sir John Soane's Museum is the London house and museum of architect John Soane at Lincoln's Inn Fields, preserved by Act of Parliament as at his 1837 death.
Sir Leo Hielscher Bridges
The Sir Leo Hielscher Bridges, originally the Gateway Bridge, are twin toll bridges carrying the Gateway Motorway across the Brisbane River in Brisbane, Australia, the first opened in 1986.
Sir Seewoosagur Ramgoolam International Airport
Sir Seewoosagur Ramgoolam International Airport, also known as Plaisance Airport, is the sole international airport of Mauritius, located at Plaine Magnien in the island's southeast.
Sirajgonj power station
Sirajgonj power station is a group of gas-fired combined cycle plants at Soydabad in Sirajganj District, Bangladesh, on the Jamuna River about 135 km northwest of Dhaka.
Sirdaryo power station
The Sirdaryo power station, also known as Syrdarya TPP, is a gas-fired thermal plant located in Shirin, Uzbekistan. Built 1972–1981, it is the largest facility in the country.
Siren (alarm)
A siren, also called a fire horn, is a loud warning device that makes sound mechanically or electronically, used on emergency vehicles and in outdoor community warning systems.
Siren's Curse
Siren's Curse is a steel tilt roller coaster at Cedar Point in Sandusky, Ohio, opened in 2025 as the first tilt coaster in North America.