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RTINGS
RTINGS, also known as RTINGS.com, is a Canadian website that independently laboratory-tests consumer electronics and other products, buying every unit it reviews, founded in 2011.
RTLinux
RTLinux is a hard real-time operating system that runs the standard Linux kernel as a low-priority thread beneath a small real-time core, created at New Mexico Tech in 1995.
RTP (tokamak)
RTP (Rijnhuizen Tokamak Project) was a medium-sized tokamak at the FOM Institute in Nieuwegein, the Netherlands, studying electron heat transport until its closure in September 1998.
RTP Control Protocol
The RTP Control Protocol (RTCP), the companion control protocol to the Real-time Transport Protocol, carries periodic control packets that monitor quality of data delivery in RTP sessions.
RTR Vehicles
RTR Vehicles, short for Ready to Rock, is an American performance company founded by driver Vaughn Gittin Jr. in 2009, known for its Mustang RTR Spec series and Ford collaborations.
RTV silicone
RTV silicone (room-temperature vulcanizing silicone) is a silicone rubber that crosslinks into an elastomer at room temperature, either as a one-part material curing on contact with atmospheric moisture.
RTV-G-4 Bumper
The RTV-G-4 Bumper was the first large two-stage liquid-fueled rocket ever flown, an American project combining a captured German V-2 with a modified WAC Corporal upper stage.
RTX Corporation
RTX Corporation, formerly Raytheon Technologies, is an American aerospace and defense manufacturer headquartered in Arlington, Virginia, formed by the 2020 merger of United Technologies and Raytheon Company.
Ru-based acidic oxygen-evolution catalysts
Ru-based acidic oxygen-evolution catalysts are ruthenium or ruthenium oxide electrocatalysts for the acidic oxygen evolution reaction, cheaper and more active than iridium but far less stable.
Rubber bullet
A rubber bullet, or rubber baton round, is a blunt-impact projectile fired by police and military for crowd control, first used in Northern Ireland in 1970 despite documented deaths and injuries.
Rubber duck debugging
Rubber duck debugging, also called rubberducking, is a debugging method in which a programmer explains code aloud, line by line, to an inanimate object like a rubber duck.
Rubble mound breakwater
A rubble mound breakwater is the most common breakwater type, built of a stone core, filter layer, and armor layer, tolerating settlement and degrading gradually rather than failing suddenly.
Rube Goldberg machine
A Rube Goldberg machine is a chain-reaction contraption that performs a simple task in an indirect, overly complicated way, named after the American cartoonist Rube Goldberg.
Ruben G. Carbonell
Ruben G. Carbonell is a Cuban-born American chemical engineer, the Frank Hawkins Kenan Distinguished Professor at North Carolina State University, elected to the National Academy of Engineering in 2014.
Rubenshuis
The Rubenshuis (Rubens House) is a museum in Antwerp, Belgium, housed in the former residence and studio of Peter Paul Rubens, who bought the house in 1610.
Rubiales field
The Rubiales field is a heavy oil field in the Llanos Basin near Puerto Gaitán, Colombia, discovered in 1981 and today the country's largest producer.
Rubin (microarchitecture)
Rubin, also known as Nvidia Rubin, is a data center GPU microarchitecture from NVIDIA, announced in 2026 as the successor to Blackwell and the heart of the Vera Rubin platform.
RuboCop
RuboCop is a static code analyzer and formatter for the Ruby programming language, first released in 2012, that checks code against the Ruby Style Guide and autocorrects many offenses.
Rubrik Security Cloud
Rubrik Security Cloud is a SaaS data security platform from Rubrik, launched as Rubrik Polaris in 2018, providing backup, recovery, and ransomware protection across clouds.
Ruby (programming language)
Ruby is a dynamic, object-oriented general-purpose programming language created by Japanese programmer Yukihiro (Matz) Matsumoto in 1993 and strongly associated with web development through Ruby on Rails.
Ruby field
The Ruby field is a shallow-water offshore oil and gas field off the east coast of Trinidad, within the Greater Angostura Field, brought on stream in 2021.
Ruby Gas Pipeline
The Ruby Pipeline is a 680-mile, 42-inch interstate natural gas pipeline from Opal, Wyoming, to Malin, Oregon, built by El Paso and placed in service in 2011.
Ruby on Rails
Ruby on Rails, also known as the Rails framework, is an open-source web-application framework written in Ruby and first released in 2004 after being extracted from Basecamp.
Ruby pistol
The Ruby pistol (Pistole Automatique Ruby) was a Spanish copy of the Browning Model 1903, chambered in .32 ACP and the most numerous French Army sidearm of World War I.
Ruby Princess
The Ruby Princess is a Crown-class cruise ship operated by Princess Cruises, built by Fincantieri in Italy and entering service in 2008 for up to 3,080 guests.
RubyGems
RubyGems is the package manager for the Ruby programming language, packaging libraries and applications as gems installed with the gem command; it launched in 2004 and works with Bundler and the RubyGems.org registry.
Ruckus Networks
Ruckus Networks, formerly Ruckus Wireless, is an American company in Sunnyvale, California that makes enterprise Wi-Fi access points, switching, and management software, best known for its BeamFlex adaptive antennas.
Rudder
The rudder is the movable control surface hinged to the trailing edge of an aircraft's vertical stabilizer, used to control yaw. Operated through rudder pedals, it coordinates turns and enables spin recovery.
RudderStack
RudderStack is an open-source, agentic warehouse-native customer data platform founded in 2019 by Soumyadeb Mitra. It collects, unifies, and activates customer data in the customer's own warehouse, stores no data itself, and offers 200+ destinations.
Ruddlesden-Popper perovskite
A Ruddlesden-Popper perovskite is a layered two-dimensional variant of the perovskite structure, named for Ruddlesden and Popper, whose late-1950s compounds underpin stable perovskite solar cells.