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Rollup (software)
Rollup is a JavaScript module bundler created by Rich Harris in 2014 that compiles small code pieces into libraries or applications, best known for tree-shaking unused code.
Roma Gas Field
The Roma gas field is a natural gas field in the Surat Basin of central Queensland, Australia, surrounding the town of Roma, first discovered in 1900.
Roma Spider
The Ferrari Roma Spider is a front-engined, twin-turbo V8 convertible grand tourer produced by Ferrari from 2023, and the first front-engined Ferrari with a fabric soft top since 1969.
Roma Street railway station
Roma Street railway station, on the western side of the Brisbane CBD in Queensland, opened in 1875 as Brisbane's original rail terminus and is the city's oldest station.
Romain Fleury
Romain Fleury is a scientist in wave physics and electrical engineering who heads the Laboratory of Wave Engineering at EPFL in Switzerland, known for training physical neural networks.
Roman abacus
The Roman abacus was a calculating device used in ancient Rome, either a pebble-and-line counting board or a small portable bronze plate with sliding beads.
Roman aqueduct
A Roman aqueduct was a channel, tunnel, or pipeline that carried water by gravity from springs to Roman towns, chiefly for public baths and drinking fountains.
Roman bridge
Roman bridge: stone-arch bridges built by Roman engineers along the empire's road network, also called pontes. Over 300 major examples, built mainly in the 1st century BC and early 2nd century AD, using the voussoir arch, concrete, and cofferdam foundations; Alcántara, Mérida, and Trajan's Danube bridge are famous cases.
Roman bridge at Buonfornello
Roman bridge at Buonfornello (Ponte Grande), an ancient stone bridge of seven piers and eight arches crossing the Imera river in Sicily on the via Valeria, probably 1st century BC, collapsed by the 16th century and eliminated in 1960-70 river works.
Roman bridge at Habitancum
Roman bridge at Habitancum (Risingham), Northumberland: Dere Street's crossing of the River Rede beside the Habitancum fort (HER 7947). Bridge-works noted by Hodgson in 1824; post-Roman river action removed most remains.
Roman Bridge at Moulin de Boisseron
Roman Bridge at Moulin de Boisseron (Pont romain de Boisseron): 1st-century AD, Tiberian-era Roman road bridge over the Bénovie at Boisseron, Hérault, France; five semicircular arches, 50.60 m long, widened 1833-36, classified monument historique 2008.
Roman bridge at Valeriana
The Roman bridge at Valeriana was a Roman bridge over the Danube at the ford between Dolni Vadin, Bulgaria, and Grojdibodu, Romania, built under Emperor Domitian during the Dacian war.
Roman bridge of San Vito
Roman bridge of San Vito (Ponte romano di San Vito, Pontaccio): ruined Roman bridge near Rimini, Italy, carrying the Via Emilia over the Uso river, probably Augustan, tied to the Rubicon question and redeveloped in 2022.
Roman bridge, Mérida
Roman bridge, Mérida (Puente Romano sobre el Guadiana): Augustan-era Roman bridge at Augusta Emerita, Spain; 792 m, 60 semicircular arches, granite ashlar over concrete, pedestrian since 1993, UNESCO-listed.
Roman bridge, Pietralunga di Paternò
Roman bridge, Pietralunga di Paternò (Ponte romano di Pietralunga): ruined two-arched Roman lava-stone bridge over the Simeto at Paternò, Catania, Sicily; about 23 m long, 4.15 m wide, on the Catania-Centuripe-Enna road.
Roman cement
Roman cement is a natural hydraulic cement, patented by James Parker in England in 1796 and widely used for nineteenth-century stucco and renders despite its name; it is now used to repair historic façades.
Roman CGI
Roman CGI, the Coronagraph Instrument, is a NASA visible-light coronagraph on the Roman Space Telescope, built by JPL to demonstrate starlight suppression and exoplanet imaging, launched in 2026.
Roman concrete
Roman concrete (opus caementicium): lime-and-volcanic-ash building material with coarse caementa aggregates, documented by Vitruvius, used for the Pantheon dome and Roman harbors; distinct from Portland cement by pozzolanic C-A-S-H chemistry and self-healing lime clasts.
Roman dams
Roman dams are water-retaining structures built across the Roman and early Byzantine world from the 1st century BC, concentrated in Spain, North Africa, and the Near East.
Roman F. Arnoldy
Roman F. Arnoldy was a metallurgical entrepreneur who founded Triten Corporation in Houston in 1946 and spent five decades developing hardfacing and chromium carbide wear-plate technology, with patents spanning 1961 to 1996.
Roman irrigation in North Africa
Roman irrigation in North Africa was the system of dams, terraces, cisterns, and foggaras that made the arid region a major grain and olive supplier to Rome.
Roman irrigation in Spain
Roman irrigation in Spain comprised dam-fed canals, estate waterworks, and legally organized irrigation communities in Hispania, distinct from urban aqueducts, with channels still functioning today.
Roman irrigation in the Levant
Roman irrigation in the Levant was a set of runoff-harvesting, floodwater-farming, and qanat systems in the Negev, southern Jordan, and Syria, from the first century BCE to the eighth century CE.
Roman roads
Roman roads were the paved routes built by the Roman state from 312 BCE, when the Via Appia linked Rome to Capua, eventually spanning nearly 300,000 kilometers.
Roman Stocker
Roman Stocker, born 1975, is an Italian environmental engineer and microbial ecologist, professor of Groundwater and Hydromechanics at ETH Zurich since 2015, known for pioneering microfluidics-based study of marine microbes.
Roman villa
Roman villa: rural estate center combining elite residence (pars urbana) and farm (pars rustica), a market-oriented farming institution spread across the western Roman Empire, later revived by Renaissance architects like Palladio.
Roman Yampolskiy
Roman Yampolskiy, born 1979 in Riga, Latvia, is a computer scientist at the University of Louisville known for coining "AI safety" and arguing superintelligent AI cannot be controlled.
Romanesque architecture
Romanesque architecture is the style of building that prevailed in western Europe from the late 10th to the 12th century, characterized by round arches and thick walls.
Romanian corvette Contraamiral Roman
The Contraamiral August Roman (pennant 261) is a light corvette of the Romanian Naval Forces, a former Turkish HISAR-class patrol vessel bought secondhand and commissioned in 2026.
Romanian identity card
The Romanian identity card, or Cartea de identitate, is an electronic card with a security chip issued to Romanian citizens and valid for travel in the EU and Schengen area.