61,984 articles
Sea trials
Sea trials are the on-water test program for a new or modified ship, demonstrating propulsion, maneuvering, and systems performance against contractual and regulatory criteria before delivery.
Sea Witch (clipper)
The Sea Witch was an American extreme clipper launched in New York in 1846, designed by John W. Griffiths and built for the fast China tea trade.
Sea-class workboat
The Sea-class workboat is a family of modular, multi-role workboats built by Atlas Elektronik UK for the British Royal Navy under Project Vahana, with 35 boats delivered from 2018 to 2024.
Sea-going wireless operator
A sea-going wireless operator, later called a radio officer, was a mariner who ran a ship's radio telegraph station, keeping the distress watch until GMDSS ended the role.
SEA-H2X
SEA-H2X, the South-East Asia Hainan-Hong Kong Express, is a 5,746 km submarine communications cable led by China Mobile and entering commercial service in July 2026.
SEA-LION
SEA-LION (Southeast Asian Languages in One Network) is a family of open large language models built by AI Singapore, first released in December 2023 to serve Southeast Asian languages.
SEA-ME-WE 3
SEA-ME-WE 3 (SMW3) was a submarine optical-fiber cable linking Western Europe, the Mediterranean, the Middle East, South Asia, and East Asia, and at 39,000 km was the world's longest.
SEA-ME-WE 5
SEA-ME-WE 5 is a 20,000 km submarine communications cable connecting 17 countries from Singapore to the Middle East to France and Italy, built by 19 telecom operators and in service since December 2016.
SEA-ME-WE 6
SEA-ME-WE 6 (Southeast Asia–Middle East–Western Europe 6) is a submarine cable from Singapore to Marseille with 17 landing points and a design capacity of more than 126 Tbps.
SEA-US
SEA-US, or Southeast Asia–United States Cable System, is a submarine fiber-optic cable connecting Indonesia and the Philippines to Guam, Hawaii, and the US mainland, entering service in 2017.
Sea-Wing (underwater glider)
Sea-Wing (海翼) is a Chinese autonomous underwater glider developed by the Shenyang Institute of Automation, which set a world depth record of 6,329 m in 2017.
Seabed crawler
A seabed crawler is a tracked, bottom-contacting underwater robot that drives across the seafloor on caterpillar tracks, performing work such as cable burial, inspection, excavation, and mineral collection.
Seabees
Seabees are the United States Navy's construction troops, organized as Naval Construction Battalions, who build and defend bases and have served from World War II to Iraq and Afghanistan.
Seaboard Coast Line Railroad
The Seaboard Coast Line Railroad was an American Class I freight railroad in the Southeast, formed in 1967 by merging the Atlantic Coast Line and Seaboard Air Line railroads.
Seaboard System Railroad
The Seaboard System Railroad was an American Class I freight railroad formed in 1982 by the merger of the Seaboard Coast Line and Louisville & Nashville railroads.
Seabrook nuclear power plant
Seabrook Station is a nuclear power plant in Seabrook, New Hampshire, whose single reactor supplies about 1,245 megawatts to the New England grid, operated by NextEra Energy.
Seacat (missile)
Seacat, also known as Short Sea Cat, was a British short-range surface-to-air missile built by Short Brothers of Belfast, the first point-defense missile to enter naval service in 1962 and widely exported.
Seadrill
Seadrill is a Bermuda-based offshore drilling contractor owning and operating drillships and semi-submersible rigs for oil and gas companies, listed on the New York Stock Exchange since October 2022.
SeaExplorer
The SeaExplorer is a wingless, rechargeable autonomous underwater glider made by the French company ALSEAMAR, launched in 2012 for long-endurance oceanographic measurement and, in a defense variant, stealth acoustic missions.
Seafarer's professions and ranks
Seafarer's professions and ranks are the occupational titles and positions on a merchant ship, organized into deck, engine, and steward departments under the master, governed by the STCW Convention.
Seagate Technology
Seagate Technology, founded in 1979 as Shugart Technology, is an American-founded data storage company that introduced the first 5.25-inch hard disk drive and is one of the world's largest drive makers.
Seagram Building
The Seagram Building is a 38-story International Style skyscraper at 375 Park Avenue in Manhattan, designed by Ludwig Mies van der Rohe and completed in 1958.
Seagreen
Seagreen is a 1,075 MW offshore wind farm around 27 km off Angus, Scotland, with 114 Vestas turbines, fully operational since October 2023 as Scotland's largest offshore wind farm.
Seagull optimization algorithm
The seagull optimization algorithm (SOA) is a swarm intelligence metaheuristic introduced by Gaurav Dhiman and Vijay Kumar in 2018 that mimics seagull migration and spiral attacking behavior to solve continuous optimization problems.
Seahawk Oil Pipeline
The Seahawk Oil Pipeline is a 20-mile crude oil pipeline on the Texas Gulf Coast, running from Edna to the Port of Calhoun, which began operations in 2021.
SEAL (Scale AI evaluation leaderboards)
SEAL is a family of private, expert-written evaluation leaderboards for frontier AI models, run by Scale AI's Safety, Evaluations, and Alignment Lab and first announced in June 2024.
SEAL Delivery Vehicle
The SEAL Delivery Vehicle is a free-flooding wet submersible used by US Navy SEALs to covertly deliver combat swimmers, launched from a Dry Deck Shelter on a submarine.
Sealdah railway station (শিয়ালদহ রেলওয়ে স্টেশন)
Sealdah railway station (শিয়ালদহ রেলওয়ে স্টেশন) is a major Eastern Railway terminal in Kolkata, India, operating since 1862 and serving as a hub of one of the country's largest suburban networks.
Sealing wax
Sealing wax is a resinous mixture used since the Middle Ages to receive seal impressions that authenticate letters and documents; it is fluid when hot and hard when cool.
SeamlessM4T
SeamlessM4T is a massively multilingual speech and text translation model released by Meta AI in August 2023, combining speech recognition, speech-to-speech, and text translation in a single model.