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Glenn Curtiss
Glenn Hammond Curtiss (1878–1930) was an American motorcycle racer and aviation pioneer who set a 1907 speed record, won major early flight prizes, and developed the seaplane.
Glenn Frederick Knoll
Glenn Frederick Knoll (1935–2014) was an American nuclear engineer and University of Michigan professor, known for the standard textbook Radiation Detection and Measurement and pioneering room-temperature semiconductor radiation detectors.
Glenn L. Martin Company
The Glenn L. Martin Company, also known as the Martin Company, was an American aircraft manufacturer founded by Glenn L. Martin in 1912, headquartered at Middle River, Maryland from 1929.
Glenn Pool
Glenn Pool is a giant oil field in Creek and Tulsa counties, northeastern Oklahoma, discovered in 1905; its boom made Tulsa the Oil Capital of the World.
Glenn Ricart
Glenn Ricart is an American computer scientist and Internet pioneer who founded SURAnet, established the first Internet exchange point, and entered the Internet Hall of Fame in 2013.
Glenn W. Stagg
Glenn W. Stagg (1923–2009) was an American electrical engineer at American Electric Power who led the first successful large-scale load flow computer program, completed in 1957.
Gleno Dam
The Gleno Dam was a multiple-arch dam in Lombardy, Italy, built between 1916 and 1923, whose collapse in December 1923 killed at least 356 people.
GLIDE
GLIDE is a text-conditional diffusion model for generating and editing photorealistic images, released by OpenAI in December 2021, which outperformed DALL-E in human evaluations despite being smaller.
Glide Phase Interceptor
The Glide Phase Interceptor is a missile under development by the US Missile Defense Agency with Japan to shoot down hypersonic weapons in their glide phase of flight.
Glidepath (company)
Glidepath was a New Zealand company founded in 1972 in Auckland that made airport baggage handling, cargo, and parcel sortation systems, acquired by B2A Technology in 2019.
Glider (aircraft)
A glider, or glider plane, is an aircraft that flies without an engine, trading altitude for speed and using rising air such as thermals to stay aloft.
Glider (sailplane)
A glider, or sailplane, is a fixed-wing aircraft designed to fly without an engine, using natural lift such as thermals, ridge lift, and mountain waves; the best glide 50 feet for every foot of height lost.
Glider aerobatics
Glider aerobatics is the discipline of flying deliberate aerobatic maneuvers in unpowered sailplanes, a sport whose first world championship was held in Austria in 1985, won by Poland's Jerzy Makula.
Glider and soaring records
Glider and soaring records are certified unpowered-flight performances in distance, speed, or altitude, recognized by the FAI's Gliding Commission; the free-distance record stands at 3,009 km, set by Klaus Ohlmann in 2003.
Glider competition classes
Glider competition classes are the FAI-defined categories into which sailplanes are grouped for badges, records, and championships, including Standard, Club, 15 and 18 meter, and Open classes.
Glider infantry
Glider infantry, also known as airlanding infantry, were soldiers trained to enter combat by riding engineless cargo gliders towed behind transport aircraft, a role born in World War II.
Glider launching methods
Glider launching methods are aerotow behind a towplane, winch launching with a cable, and bungee launching; winches are cheaper but give less height than aerotows.
Glider pilot license
A glider pilot license authorizes a person to act as pilot in command of a glider or sailplane, issued as an FAA rating or a European Sailplane Pilot Licence.
Gliding
Gliding, also called soaring, is the recreational and competitive air sport of flying engineless gliders that stay airborne using rising air such as thermals, ridge lift, and mountain waves.
Glienicke Bridge
The Glienicke Bridge (Glienicker Brücke) is a steel bridge over the Havel between Berlin and Potsdam, known as the "Bridge of Spies" for three Cold War agent exchanges.
Glines Canyon Dam
Glines Canyon Dam, also known as the Glines Canyon Hydroelectric Power Plant, was a 210-foot concrete arch dam on Washington's Elwha River, built in 1927 and removed by 2014.
Glitch
A glitch is a small, often transient fault that briefly disrupts the normal operation of a technology, from a logic circuit to a video stream.
Glitter
Glitter is a decorative material of small, flat, reflective flakes cut from plastic film, mica, or metal, used in cosmetics, arts and crafts, fashion, and holiday decorations.
Glivenko–Cantelli theorem
The Glivenko–Cantelli theorem, or Glivenko–Cantelli lemma, states that the empirical distribution function converges uniformly to the true distribution function almost surely, proved by Valery Glivenko and Francesco Cantelli in 1933.
GLM (model family)
GLM (General Language Model) is a family of large language models developed by the Chinese lab Zhipu AI, first released as an open bilingual model in 2022.
GLM open-weight releases
GLM open-weight releases are the publicly downloadable checkpoints in Zhipu AI's GLM large language model family, running from GLM-130B in October 2022 to GLM-5.3-Flash in 2026.
GLM-4
GLM-4 is a family of large language models released by the Chinese AI company Zhipu AI on January 16, 2024, as the fourth generation of its GLM line.
GLM-4-Voice
GLM-4-Voice is an open end-to-end speech-native conversational model released by Zhipu AI in October 2024, which understands and generates Chinese and English speech directly in one model.
GLM-4.5
GLM-4.5 is an open-weight Mixture-of-Experts large language model released by Z.ai (Zhipu AI) in July 2025, positioned for agentic workflows and shipped in 355B and 106B-parameter sizes under the MIT license.
GLM-4.5V (Zhipu vision models)
GLM-4.5V is an open-weight vision-language model released by Zhipu AI on August 11, 2025 under the MIT license, handling image, video, and document understanding with a 106B-parameter MoE architecture.