Technology and the built world

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Steering damper

A steering damper, also called a steering stabilizer, is a hydraulic device on a motorcycle that resists rapid, unwanted handlebar movement while leaving normal steering unaffected.

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Steering wheel

The steering wheel is the wheel-shaped control a driver rotates to steer a vehicle, first used in the 1894 Paris–Rouen race and standard in cars ever since.

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Stefaan De Wolf

Stefaan De Wolf is a Belgian materials scientist who has been a professor at KAUST in Saudi Arabia since 2016, leading research on silicon heterojunction and perovskite tandem solar cells.

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Stefan Diez

Stefan Diez is a German biophysicist known for using DNA to program the motion of kinesin motor proteins; he has been Professor for BioNanoTools at TU Dresden since 2010.

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Stefan Howorka

Stefan Howorka is Professor of Chemical Biology at University College London, where he builds DNA origami nanopores that span lipid membranes for biosensing and synthetic biology.

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Stefanie Hellweg

Stefanie Hellweg is a Swiss environmental engineer and full professor at ETH Zurich, holding the Chair of Ecological Systems Design since 2006 and specializing in life cycle assessment.

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Stefano Curtarolo

Stefano Curtarolo is an Italian-American materials scientist at Duke University, a distinguished professor who created the AFLOW framework and AFLOWLIB repository for automated computational discovery of new materials.

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Stefano Ermon

Stefano Ermon is an Associate Professor of Computer Science at Stanford University, known for score-based and diffusion generative models and for the 2016 Science paper predicting poverty from satellite imagery.

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Stefano Pirandola

Stefano Pirandola is an Italian quantum information scientist and full professor of computer science at the University of York since 2016, known for the PLOB bound and measurement-device-independent quantum cryptography.

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Stefano Soatto

Stefano Soatto is an Italian-American computer vision and robotics researcher, a UCLA professor on leave who is a vice president and distinguished scientist in AWS's Agentic AI organization.

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STEGAL Gas Pipeline

STEGAL (Sachsen-Thüringen-Erdgas-Anbindungsleitung) is a 314 km natural gas pipeline in Germany, running from Olbernhau in Saxony to Reckrod in Hessen since 1992 and described as a route for importing Russian gas.

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Steganalysis

Steganalysis is the set of information security techniques for detecting hidden messages embedded in digital media such as images, audio, and video, by finding statistical artifacts.

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Steganography

Steganography is the practice of hiding a secret message inside an innocent-looking carrier such as an image, audio, or video, so that even the message's existence is concealed, unlike cryptography.

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Steiff

Steiff is a German soft toy manufacturer based in Giengen an der Brenz, founded in 1880 by Margarete Steiff and best known for making the first teddy bear.

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Stein variational gradient descent

Stein variational gradient descent (SVGD) is a particle-based variational inference algorithm introduced by Qiang Liu and Dilin Wang in 2016, which moves particles to approximate a target distribution.

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Steinmeyer (company)

Steinmeyer, formally August Steinmeyer GmbH & Co. KG, is a German family-owned manufacturer of high-precision ball screws, founded in 1920 and headquartered in Albstadt, Baden-Württemberg.

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Stelato (享界)

Stelato, also known as Xiangjie (享界), is a Chinese premium new energy vehicle brand developed by BAIC Group and Huawei under the HIMA alliance, first offering the S9 executive sedan.

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Stelato S9

The Stelato S9 (享界S9) is a large executive electric sedan developed by Huawei and BAIC, launched in China on August 6, 2024 as a rival to the Mercedes-Benz EQS at about half its price.

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Stelco

Stelco, founded in 1910 as The Steel Company of Canada, is a Canadian steelmaker headquartered in Hamilton, Ontario, operating the Nanticoke Lake Erie Works and owned by Cleveland-Cliffs since 2024.

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Stelios Kyriakides

Stelios Kyriakides is a Professor of Aerospace Engineering at the University of Texas at Austin who established the field of propagating instabilities, including buckle propagation in offshore pipelines.

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Stella Li (李柯)

Stella Li (李柯, also known as Ke Li) is a Chinese executive, Executive Vice President of BYD, responsible for the automaker's sales and expansion outside China.

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Stellantis

Stellantis N.V. is a Dutch-registered multinational automaker formed by the 2021 merger of Fiat Chrysler Automobiles and Groupe PSA, owning brands like Jeep, Fiat, and Peugeot.

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Stellarator

A stellarator is a magnetic-confinement fusion device whose twisting field comes entirely from external coils, invented by Lyman Spitzer at Princeton in 1951 and developed alongside the tokamak.

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Stellite

Stellite is a family of cobalt-based wear- and corrosion-resistant alloys developed by Elwood Haynes in 1887, used for hardfacing valve seats, pump shafts, and saw tips.

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Stem (typography)

In typography, a stem is the main vertical or full-length angled stroke of a letterform, such as the uprights of b and H, and its weight defines a typeface.

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Stem Inc

Stem Inc is an American clean energy software company founded in 2009 and headquartered in Houston, Texas, providing AI-enabled software that monitors and optimizes solar and battery storage assets worldwide.

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Stemming

Stemming, or word stemming, is a text-normalization technique in natural language processing that cuts affixes off words so variants like eating and eat share a stem.

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Sten

The Sten, or Sten gun, was a British 9mm submachine gun of the Second World War, designed for cheap mass production and supplied to resistance movements in occupied Europe.

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Stena Bulk

Stena Bulk is a Swedish tanker shipping company founded in 1982, headquartered in Gothenburg, and part of the Stena Sphere, with a fleet of roughly 60 to 70 vessels.

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Stena Line

Stena Line is a Swedish ferry operator founded in Gothenburg in 1962 by Sten A Olsson, running ferries on routes across Northern Europe and the Mediterranean.