edgepedia

Technology and the built world

61,984 articles

OTs-14 Groza

The OTs-14 Groza (ОЦ-14 «Гроза", "Thunderstorm") is a Russian bullpup, modular assault rifle in 9x39mm, developed at TsKIB SOO in Tula and used by OMON, SOBR, and Spetsnaz units, including in Chechnya.

Otsu's method

Otsu's method, also called Otsu's algorithm, is an automatic image thresholding technique in image segmentation that Nobuyuki Otsu published in 1979, choosing the threshold that best separates two pixel classes.

Otsuka Corporation

Otsuka Corporation (大塚商会) is a Japanese IT services company founded in Tokyo in 1961 that sells and supports office IT for small and mid-sized businesses.

Otsuka Pharmaceutical

Otsuka Pharmaceutical (大塚製薬) is a Japanese pharmaceutical and nutraceutical company headquartered in Tokyo and established in 1964, known for the antipsychotic ABILIFY and the beverage POCARI SWEAT.

Otta seal

An Otta seal is a thin bituminous surface treatment for low-volume roads, developed by Norwegian road authorities in 1963, that uses soft binder and inexpensive graded aggregate.

Ottawa Macdonald–Cartier International Airport

Ottawa Macdonald–Cartier International Airport (IATA: YOW), also known as Ottawa International Airport, is the main airport serving Ottawa, Ontario, named for Fathers of Confederation Sir John A. Macdonald and Sir George-Étienne Cartier.

Otter.ai

Otter.ai: AI meeting assistant (formerly AISense), founded 2016 by Sam Liang and Yun Fu in Mountain View; real-time transcription, speaker ID, summaries on Zoom, Teams, Google Meet; $50M Series B 2021.

Ottmar Mergenthaler

Ottmar Mergenthaler (1854–1899) was a German-born machinist who invented the Linotype, a typesetting machine casting entire lines of metal type, first operated at the New York Herald Tribune in 1886.

Otto H. Schade

Otto H. Schade (1903–1981) was a German-born American television engineer and imaging scientist who spent his career at RCA, known for developing the modulation transfer function concept.

Otto Kittel

Otto Kittel was a German Luftwaffe fighter ace of World War II, credited with 267 aerial victories on the Eastern Front before his death in 1945.

Otto Lilienthal

Otto Lilienthal was a German aviation pioneer who made the first sustained, repeatable human gliding flights between 1891 and 1896, and whose aerodynamic data guided the Wright brothers.

Otto Redlich

Otto Redlich, born in Vienna in 1896, was an Austrian-born American chemist who published the 1949 Redlich–Kwong equation of state and the Redlich–Kister expansion while at Shell and UC Berkeley.

Otto Schmitt

Otto Schmitt (1913–1998) was an American biophysicist and electrical engineer at the University of Minnesota, inventor of the Schmitt trigger circuit and coiner of "biomimetics."

Ottobock

Ottobock is a German medical technology company founded in Berlin in 1919 by prosthetist Otto Bock, headquartered in Duderstadt and making prosthetics, orthotics, exoskeletons, and wheelchairs.

Ottoman (furniture)

An ottoman is a low, upholstered, backless piece of furniture used as a footrest, extra seat, or storage-footrest hybrid, named after a European fashion for Turkish style.

Ottoman aqueducts in the Balkans and Istanbul

Ottoman aqueducts are water-supply bridges and covered galleries built under Ottoman rule from the mid-sixteenth century onward, with the Kırkçeşme system, ordered by Süleyman the Magnificent in 1554, supplying Istanbul.

Ottoman architecture

Ottoman architecture, also called Ottoman Turkish architecture, is the building tradition of the Ottoman Empire, emerging in Bursa and Edirne and culminating in Sinan's 16th-century mosques.

Ottoman matchlock musket

The Ottoman matchlock musket, called fitilli tüfek in Ottoman Turkish, was the standard shoulder firearm of Ottoman infantry, above all the Janissaries, from the fifteenth into the late seventeenth century.

Otumara Oil and Gas Field

Otumara Oil and Gas Field is an onshore oil and gas field in the western Niger Delta of Nigeria, part of OML 43 near Warri.

Ouachita River Lock and Dam No. 8

Ouachita River Lock and Dam No. 8 was a movable-wicket lock and dam on the Ouachita River at Calion, Arkansas, built by the U.S. Army Corps of Engineers in 1907 and 1916.

Oukitel

Oukitel is a Chinese consumer electronics brand based in Shenzhen, owned by Shenzhen Yunji Intelligent Technology, known for rugged smartphones with very large batteries, tablets, and power stations.

Oumache power station

Oumache power station (محطة كهرباء أوماش), also known as the Biskra Combined-Cycle Power Plant, is a natural-gas-fired power station in Biskra Province, Algeria, operated by Sonelgaz.

Our Next Energy

Our Next Energy Inc. is a Michigan battery company founded by Mujeeb Ijaz around 2020, making lithium iron phosphate batteries for rail, defense, and grid storage.

Oura Ring

The Oura Ring is a screenless smart ring made by Oura Inc., founded in Finland in 2013, that tracks sleep, heart rate, and temperature in a companion app.

Ourang Medan

The Ourang Medan is a legendary ghost ship, supposedly a Dutch freighter found adrift with its whole crew dead and its holds on fire around 1939.

Ourhoud Oil Field

Ourhoud is a giant onshore oil field in eastern Algeria's Berkine Basin, the country's second largest after Hassi Messaoud, producing from Triassic sandstones since 2002.

Ouse Valley Viaduct

The Ouse Valley Viaduct, also called the Balcombe Viaduct, is a brick railway viaduct in West Sussex carrying the Brighton Main Line over the River Ouse.

Ouster

Ouster, Inc. is an American lidar sensor company headquartered in San Francisco that designs and manufactures digital lidar sensors for the industrial, robotics, automotive, and smart infrastructure markets.

Ouster LiDAR

Ouster LiDAR is a line of digital lidar sensors made by Ouster, Inc. of San Francisco, built from semiconductor chips and used in automotive, robotics, and infrastructure.

Out-of-band management

Out-of-band management, also known as lights-out management, is the administration of computers and network equipment through a separate communication path, so management keeps working when the production network is down.