61,984 articles
Ray H. Baughman
Ray H. Baughman (1943–2025) was an American materials scientist who directed the NanoTech Institute at the University of Texas at Dallas and pioneered carbon nanotube yarns and artificial muscles.
Ray H. Boundy
Ray H. Boundy (1903–1992) was an American chemical engineer who spent forty-two years at Dow Chemical, rising to vice-president and first full-time director of research.
Ray Kurzweil
Ray Kurzweil (Raymond Kurzweil), born 1948, is an American inventor and futurist known for the Kurzweil Reading Machine, speech recognition, and predicting the Singularity by 2045.
Ray R. Irani
Ray R. Irani is a Lebanese-born American physical chemist, born in Beirut, who served as chairman and CEO of Occidental Petroleum from 1990 to 2011.
Ray Tomlinson
Ray Tomlinson was an American computer engineer at BBN who created the first network email on the ARPANET in 1971 and chose the @ sign for addresses.
Ray tracing (graphics)
Ray tracing, also called raytrace, is a computer graphics rendering technique that follows light rays from the camera through a scene, producing physically accurate reflections, refractions, and shadows.
Ray W. Clough
Ray W. Clough (1920–2016) was an American structural and earthquake engineer at UC Berkeley, co-developer of the finite element method and co-author of Dynamics of Structures.
Ray-Ban
Ray-Ban is an eyewear brand founded in 1937 by Bausch & Lomb, best known for the Aviator and Wayfarer sunglasses and, since 2021, for smart glasses made with Meta.
Ray-Ban Meta
Ray-Ban Meta is a line of smart glasses from Meta Platforms and EssilorLuxottica, launched in 2023 with a 12 MP camera, speakers, and the Meta AI voice assistant.
Rayalaseema Thermal Power Project
The Rayalaseema Thermal Power Project is a coal-fired power station in Kadapa district, Andhra Pradesh, India, owned by APGENCO with a capacity of 1,650 MW.
Raycast (software)
Raycast is a keyboard-driven launcher and productivity app for macOS, Windows, and iOS, founded in 2020 by former Facebook engineers Thomas Paul Mann and Petr Nikolaev.
Rayleigh fading
Rayleigh fading is a statistical model of wireless signal fading that applies when many scattered multipath components arrive with no dominant line-of-sight path, causing the signal envelope to follow a Rayleigh distribution.
Raylib
Raylib is a free, open source C programming library for video game and multimedia development, created by Ramon Santamaria in 2013 and licensed under zlib.
Raymond C. Loehr
Raymond C. Loehr (1931–2021) was an American environmental engineer, an expert on industrial and hazardous waste treatment who held a chaired professorship at the University of Texas at Austin.
Raymond D. Kell
Raymond D. Kell (Ray D. Kell) directed television camera research at RCA from 1930, helped create the American 525-line TV standard, and gave his name to the Kell factor.
Raymond D. Mindlin
Raymond D. Mindlin (1906–1987) was an American applied mechanician at Columbia University, known for Mindlin plate theory, the Mindlin problem, and generalized continuum theories of elasticity.
Raymond F. Decker
Raymond F. Decker is an American metallurgist, elected to the National Academy of Engineering in 1980, known as co-inventor of maraging steels and co-founder of Thixomat.
Raymond J. Krizek
Raymond J. Krizek is an American geotechnical engineer and member of the National Academy of Engineering who taught civil engineering at Northwestern University for 59 years, retiring in 2022.
Raymond L. Bisplinghoff
Raymond L. Bisplinghoff (1917–1985) was an American aeronautical engineer known for work on aeroelasticity and aircraft structural dynamics, the textbook Aeroelasticity (1955), and leadership at MIT and NASA.
Raymond Loewy
Raymond Fernand Loewy (1893–1986) was a French-born American industrial designer, active in New York from 1919, who designed the Coldspot refrigerator, Pennsylvania Railroad locomotives, and the Air Force One livery.
Raymond Viskanta
Raymond Viskanta (1931–2021) was a Lithuanian-born American mechanical engineer and Purdue professor known for pioneering research on radiative heat transfer, elected to the National Academy of Engineering in 1987.
Raymond W. Ketchledge
Raymond W. Ketchledge (1919–1987) was an American electronics engineer at Bell Telephone Laboratories who led development of the first electronic telephone switching systems placed in public service in the United States.
Raymond Wilson (optical engineer)
Raymond Wilson (1928–2018) was an engineer at the European Southern Observatory who invented active optics, enabling thin lightweight telescope mirrors, and shared the 2010 Kavli Prize in Astrophysics.
Raymonde de Laroche
Raymonde de Laroche, born Elise Deroche and known as Baroness de Laroche, was a French aviator who in 1910 became the first woman to earn an airplane pilot license.
Rayong Gulf PD power station
The Rayong Gulf PD power station, also called Gulf Pluak Daeng, is a natural gas-fired power plant in Rayong Province, Thailand, with four units totaling 2,650 MW.
Rayong-Bang Pakong 1 Gas Pipeline
The Rayong-Bang Pakong 1 Gas Pipeline is a 107 km Thai natural gas pipeline from Rayong to the Bang Pakong power plant, operating since 1981 and owned by PTT.
Rayong-Bang Pakong 2 Gas Pipeline
The Rayong-Bang Pakong 2 Gas Pipeline is a 105 km, 28-inch onshore natural gas pipeline in eastern Thailand, owned by PTT and placed in service in 1996.
Rayovac
Rayovac is an American battery brand founded in 1906 in Madison, Wisconsin, as the French Battery Company and owned since 2019 by Energizer Holdings, Inc.
Raytheon
Raytheon is an American defense technology company founded in 1922 in Cambridge, Massachusetts, known for the Patriot missile system, radars, and inventing the microwave oven; it merged with United Technologies in 2020.
Raytheon Peregrine
The Raytheon Peregrine is a developmental medium-range, air-launched air-to-air missile unveiled by Raytheon in 2019, designed to engage drones, aircraft, and cruise missiles at roughly half the size and cost of current missiles.