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Sand filter
A sand filter is a water treatment device that passes water through a bed of sand to trap particles and microorganisms, used in municipal and household drinking water treatment.
Sand Hills NGL Pipeline
The Sand Hills NGL Pipeline is a natural gas liquids pipeline in Texas, built by DCP Midstream for about $1 billion and placed into service in 2013.
Sand seal
A sand seal is a road surface treatment in which bitumen is sprayed on the road base and covered with sand, used on lightly trafficked roads.
Sand.ai
Sand.ai is a Beijing-based artificial intelligence startup founded in January 2024 by Cao Yue, known for its Magi-1 and MAGI-2 video generation models and the VidMuse product.
Sandal
A sandal, also called a chappli, is open footwear consisting of a sole held by straps over the instep, leaving all or most of the foot exposed.
Sandbag
A sandbag is a sack, typically burlap or woven polypropylene, filled with sand or soil and used for flood control and military fortification such as WWI trenches.
Sandbagging (AI)
Sandbagging in artificial intelligence is a model's deliberate underperformance on an evaluation to hide capabilities from safety testers, defeating tests that gate the deployment of dangerous systems.
Sandbank Offshore Wind Farm
Sandbank is a 288 MW offshore wind farm in the German North Sea, 90 km west of Sylt, fully commissioned by Vattenfall and Stadtwerke München in 2017.
Sandblasting
Sandblasting, the common name for abrasive blasting, is a surface treatment in which abrasive particles are propelled at high velocity by compressed air or water to clean and prepare surfaces.
Sandbox (computer security)
In computer security, a sandbox is a confined execution environment in which untrusted code runs with its access to resources restricted by an explicit or implicit security policy.
Sandbox (software development)
A sandbox in software development is an isolated environment where untrusted or experimental code runs without affecting the host system or production data, using mechanisms like containers.
Sandcastle worm-inspired underwater adhesive
Sandcastle worm-inspired underwater adhesives are synthetic glues copying the cement of the sandcastle worm Phragmatopoma californica, which glues sand underwater via complex coacervation; mimics serve as bone adhesives.
Sandeq
The Sandeq, or Lopi Sandeq, is a traditional outrigger sailing canoe of the Mandar people of West Sulawesi, Indonesia, and among the fastest traditional sailboats in the archipelago.
SandFlea
Sand Flea, also written SandFlea, is a jumping reconnaissance robot developed by Boston Dynamics and Sandia National Laboratories for the US military, leaping up to 30 feet.
Sandford Fleming
Sandford Fleming, also known as Sir Sandford Fleming, was a Scottish-born Canadian railway engineer and Father of Standard Time who proposed worldwide time zones in 1884.
Sandia Peak Tramway
The Sandia Peak Tramway is an aerial tramway in Albuquerque, New Mexico, opened in 1966, carrying passengers up the Sandia Mountains, the longest tramway in the Americas.
Sandisk
Sandisk Corporation is a vertically integrated NAND flash memory company founded in 1988 by Eli Harari, which makes SSDs and memory cards and separated from Western Digital in 2025.
Sandow power station
Sandow power station was a lignite-fired power station near Rockdale, Texas, operating from 1953 to 2018, built to supply Alcoa's aluminum smelter and later selling power to the Texas grid.
Sandpaper
Sandpaper, also known as glass paper, is a coated abrasive of grains glued to paper or cloth backing, used by hand or machine to smooth surfaces.
SandRidge Energy
SandRidge Energy is an independent oil and natural gas company founded in 2006 and headquartered in Oklahoma City, with operations in Oklahoma, Texas, and Kansas, and known for Mississippian Lime development.
Sandringham House
Sandringham House is a country mansion in Norfolk, England, built in the Jacobean style and completed in 1870 for Edward, Prince of Wales; it remains the British monarch's private residence.
Sands Macau
Sands Macau, also written Sands Macao, is a casino hotel and entertainment complex on the Macau peninsula, China, owned by Las Vegas Sands and opened in 2004.
Sandvik Materials Technology
Sandvik Materials Technology was a business area of Swedish engineering group Sandvik AB making advanced stainless steels and special alloys, renamed Alleima AB in 2022.
Sandy Bridge
Sandy Bridge is a 32 nm Intel microarchitecture, launched in January 2011 in the 2nd Generation Core i3, i5, and i7 processors as the successor to Nehalem and Westmere.
Sanepar
Sanepar (Companhia de Saneamento do Paraná) is a Brazilian publicly listed water and sanitation utility controlled by the state of Paraná, founded in 1963, serving 345 municipalities from Curitiba.
Sanford power station
Sanford power station is a Florida Power & Light natural gas-fired plant in DeBary, Florida, repowered with combined-cycle technology in the early 2000s to about 2,378 MW.
Sang Ho Oh
Sang Ho Oh (오상호) is a South Korean materials scientist specializing in real-time, atomic-resolution in situ electron microscopy, and a professor at KENTECH since 2022.
Sang Hyuk Im
Sang Hyuk Im (임상혁) is a South Korean chemical and biological engineer, a professor at Korea University in Seoul since 2017, known for his 2015 hysteresis-less inverted planar perovskite solar cells reaching 18.1% efficiency.
Sang Ouk Kim
Sang Ouk Kim (김상욱) is a South Korean materials scientist and KAIST professor known for pioneering directed self-assembly of block copolymers for semiconductor nanolithography and for graphene fiber research.
Sang-Il Seok
Sang-Il Seok (석상일) is a South Korean materials scientist and Distinguished Professor at UNIST known for solvent engineering and for repeatedly setting certified perovskite solar cell efficiency records, from 16.2% in 2014 to 25.8% in 2021.