Technology and the built world

Ruth Rivera Marín

Ruth Rivera Marín, also known as Ruth María Rivera Marín, was a Mexican architect and educator, daughter of Diego Rivera, who helped complete the Museo Anahuacalli and led INBAL's architecture department.

Ruthenium interconnects

Ruthenium interconnects are on-chip wiring made from the noble metal ruthenium, developed to replace copper in the most scaled layers of integrated circuits because it needs no diffusion barrier.

Rutile structure

The rutile structure is a tetragonal crystal structure type named after the mineral rutile, the most stable form of TiO2, with metals octahedrally coordinated by oxygen or fluorine.

Rutland Water

Rutland Water, also called Empingham Reservoir, is a pumped storage reservoir in Rutland, England, created by damming the River Gwash and completed in 1976 to supply drinking water to the East of England.

Rutting

Rutting is permanent deformation of a flexible pavement in the wheel path, accumulating with traffic and high temperatures, and one of the controlling distress modes in asphalt pavement design.

Ruwais

Ruwais, also known as Al Ruwais Industrial City, is an industrial city in Abu Dhabi, UAE, hosting the country's largest refining and petrochemical operations, including Borouge.

Ruwais FSRU

The Ruwais FSRU is a floating storage and regasification unit moored at Ruwais port in Abu Dhabi, which has served as the emirate's first LNG import facility since 2016.

Oct 10, 2026

Ruzena Bajcsy

Ruzena Bajcsy, born 1933, is a Czech-born American computer scientist who pioneered active perception in robotics, founded Penn's GRASP Laboratory, and led NSF's CISE Directorate.

RV Belgica (research vessel)

RV Belgica is Belgium's oceanographic research vessel, delivered in 2021 to replace the 1984 ship of the same name; it studies the North Sea and sails as a Belgian Navy auxiliary vessel.

RV Knorr

RV Knorr was an American Navy-owned research vessel operated by Woods Hole Oceanographic Institution from 1970 to 2014, covering nearly 1.4 million miles of ocean science.

RV Maria S. Merian

RV Maria S. Merian is a German ocean research vessel based in Rostock, serving marine research since 2006 and able to break ice up to 60 centimeters thick.

RV Sonne

RV Sonne, German for "Sun," is a German deep-sea research vessel commissioned in 2014 and operated on the Pacific and Indian Oceans as Germany's primary platform for marine and Earth science in the Indo-Pacific.

RV Vityaz

RV Vityaz (Витязь, "Knight") was a Soviet oceanographic research ship of the USSR Academy of Sciences from 1949 to 1979, now the main exhibit of the Museum of the World Ocean in Kaliningrad.

RV16X-NANO

RV16X-NANO is a 16-bit research microprocessor reported in 2019 by MIT and Analog Devices, built entirely from carbon nanotube transistors using industry-standard processes and running open-source RISC-V instructions.

RViz

RViz is a 3D visualization tool for the Robot Operating System (ROS), first introduced in 2008, that renders sensor data, robot models, maps, and markers for developers.

RwandAir

RwandAir, formerly RwandAir Express, is the government-owned flag carrier of Rwanda, based at Kigali International Airport and flying across Africa, the Middle East, Europe, and Asia.

RWE

RWE AG, the Rheinisch-Westfälische Elektrizitätswerk, is a German energy company headquartered in Essen. Founded in 1898, it became one of Germany's largest electricity suppliers and targets net zero emissions by 2040.

RWKV

RWKV is an open-source RNN architecture for large language models, created by Bo Peng in 2021, that trains like a Transformer but runs with constant memory.

RXNMapper

RXNMapper is an open-source tool that maps atoms between reactants and products in chemical reactions using attention weights from a transformer model trained without labeled data.

Oct 26, 2026

Ryan Blue

Ryan Blue (rdblue), American software engineer; co-creator of Apache Iceberg with Dan Weeks at Netflix, Apache ASF member, Iceberg VP, Parquet/Avro PMC, co-founder of Tabular acquired by Databricks.

Ryan Johnson (aerospace engineer)

Ryan Johnson, also known as Ryan F. Johnson, is an American aerospace engineer at the U.S. Naval Research Laboratory who received a 2025 PECASE award.

Sep 21, 2026

Ryan O’Hayre

Ryan P. O'Hayre is a materials scientist and University Distinguished Professor at the Colorado School of Mines who researches fuel cells and protonic ceramic electrochemical cells.

Ryan Stutsman

Ryan Stutsman is an American computer systems researcher and Associate Professor at the University of Utah, known for the XRP storage system and a 2025 PECASE award.

Ryan X-13 Vertijet

The Ryan X-13 Vertijet, also known simply as the Vertijet, was an experimental tail-sitting VTOL jet built by Ryan Aeronautical and flown by the US Air Force from 1955 to 1957.

Ryanair

Ryanair is an Irish low-cost airline headquartered in Dublin, founded in 1984, that pioneered low-cost flying in Europe and has been Europe's largest passenger airline since 2008.

Ryanair Flight 4978

Ryanair Flight 4978 was a scheduled Athens to Vilnius flight diverted to Minsk by Belarusian authorities under a false bomb threat on 23 May 2021, detaining journalist Roman Protasevich.

Ryazanskaya GRES power station

Ryazanskaya GRES (Рязанская ГРЭС) is a large coal- and gas-fired thermal power station at Novomichurinsk in Ryazan Oblast, Russia, owned by the generating company OGK-2.

Rybnik power station

Rybnik power station, or Elektrownia Rybnik, is a hard-coal-fired power plant in Rybnik, southern Poland, owned by PGE and generating electricity and district heat since 1972.

Oct 21, 2026

Rydal Mount

Rydal Mount is a Grade I listed house in Rydal, Cumbria, home of poet William Wordsworth from 1813 until his death in 1850, with a terraced 5-acre garden he designed; acquired by the Wordsworth Trust in March 2026.