Technology and the built world

Roger Boisjoly

Roger Boisjoly (1938–2012) was an American mechanical engineer at Morton Thiokol who warned of the O-ring failure behind the 1986 Challenger disaster and testified to the Rogers Commission.

Oct 10, 2026

Roger Harrington (electrical engineer)

Roger F. Harrington, born in 1925, is an American electrical engineer and Syracuse University professor regarded as the father of the method of moments, which he named in 1967.

Roger Lacroix

Roger Lacroix (1928–2016) was a French civil engineer, professor at the École nationale des ponts et chaussées, and president of the Fédération internationale de la précontrainte.

Roger M. Myers

Roger M. Myers is an American aerospace engineer who led in-space propulsion at Aerojet Rocketdyne and was elected to the National Academy of Engineering in 2022.

Roger R. Schmidt

Roger R. Schmidt is an American mechanical engineer who spent over 35 years at IBM designing cooling for large-scale computers, then became a Syracuse University professor.

Roger Sargent (chemical engineer)

Roger Sargent (1926–2018) was a British chemical engineer at Imperial College London, known as the founding father of process systems engineering, which applies optimization to chemical processes.

Roger Shepard

Roger Shepard (Roger Newland Shepard, 1929 to 2022) was an American cognitive scientist at Stanford known for the mental rotation experiments founding mental imagery research.

Roger W. Brockett

Roger W. Brockett (1938–2023) was an American control theorist at Harvard University who created the field of geometric nonlinear control and founded the Harvard Robotics Laboratory in 1983.

Roger W. Staehle

Roger W. Staehle (1934–2017) was an American corrosion scientist who founded the Fontana Corrosion Center at Ohio State and joined the National Academy of Engineering in 1978.

Rogers Commission

The Rogers Commission, formally the Presidential Commission on the Space Shuttle Challenger Accident, was appointed by Reagan in 1986, chaired by William Rogers with Neil Armstrong as vice chairman.

Rogers Commission Report

The Rogers Commission Report, chaired by William P. Rogers, was the 1986 report to President Reagan that identified the O-ring failure causing the Challenger accident and made nine recommendations.

Rogers Communications

Rogers Communications Inc. is a Canadian communications and media company headquartered in Toronto, founded by Ted Rogers in 1960; it is Canada's largest cable company.

Rogers Wireless

Rogers Wireless, formerly Rogers AT&T, is the wireless division of Rogers Communications and Canada's largest wireless provider, tracing to Cantel, which made Canada's first cellular call in 1985.

Rogfast is a 26.7 km subsea road tunnel under construction in Rogaland, Norway, carrying the E39 under the Boknafjorden; when it opens in 2033 it will be the world's longest and deepest subsea road tunnel.

Rogozhnikovskoye field

Rogozhnikovskoye field (Рогожниковское месторождение) is an oil field in the Khanty-Mansi Autonomous Okrug of Western Siberia, Russia, discovered in 1988, in production since 2005, and operated by Surgutneftegas.

Rogue River Basin Project

The Rogue River Basin Project is a federal irrigation and hydropower project in southwestern Oregon, whose Talent Division, built by the Bureau of Reclamation, was authorized in 1954.

Rogun Dam

Rogun Dam is a 335-meter dam under construction on the Vakhsh River in Tajikistan, expected to become the world's tallest when completed, with a 3,600 MW hydropower plant.

Rohacell

Rohacell is a rigid, closed-cell polymethacrylimide structural foam made by Evonik, discovered in the early 1960s at Röhm & Haas and used as a core in aerospace sandwich composites.

Rohan Murty

Rohan Murty, also known as Rohan Narayana Murty, is an Indian entrepreneur and computer scientist who founded Soroco, the Murty Classical Library of India, and Workfabric AI.

Rohde & Schwarz

Rohde & Schwarz is a German, family-owned technology company headquartered in Munich, founded in 1933, that develops test and measurement equipment, broadcast transmitters, and cybersecurity solutions.

Rohini (rocket family)

The Rohini sounding rockets, including models RH-75 through RH-560, are one- and two-stage solid-propellant research rockets developed by India's ISRO to study the upper atmosphere.

Rohit Karnik

Rohit Karnik is an Indian-American mechanical engineer at MIT, a professor of mechanical engineering who directs the J-WAFS lab and studies nanofluidics and graphene membranes.

Rohrbach Roland

The Rohrbach Roland (Ro VIII) is a German three-engine, all-metal passenger aircraft that began flying for Luft Hansa in 1926 and set 22 world records.

RoHS

RoHS, the Restriction of Hazardous Substances directive, is an EU law limiting hazardous substances in electronics, adopted in 2003 and revised as RoHS 2 in 2011.

Rokan-Dumai Oil Pipeline

The Rokan-Dumai Oil Pipeline is a 367 km crude oil pipeline in Riau, Indonesia, carrying oil from the Rokan Block to the Pertamina refinery at Dumai.

Roketsan

Roketsan, formally Roketsan Roket Sanayi, is a Turkish rocket and missile manufacturer founded in 1988 and headquartered in Ankara, serving as Türkiye's national missile system house.

Rokkasho Reprocessing Plant

Rokkasho Reprocessing Plant (六ヶ所再処理工場) is Japan's first commercial spent nuclear fuel reprocessing plant, located in Rokkasho Village, Aomori Prefecture, and operated by Japan Nuclear Fuel Limited.

Rokot

Rokot (Рокот, Russian for "rumble") was a Russian expendable small-lift launch vehicle built from the retired SS-19 ICBM by Khrunichev, flying 32 orbital launches between 1994 and 2019.

ROKS Cheonan sinking

The ROKS Cheonan sinking occurred on 26 March 2010, when a South Korean patrol corvette sank near Baengnyeong Island; an investigation blamed a North Korean torpedo, and 46 sailors died.