All articles starting with W
11,426 articles
Water transportation
Water transportation is the movement of people and goods by boat, ship, or barge on inland waterways, coasts, and oceans, in use since about 4000 BCE.
Water treatment
Water treatment is the set of physical, chemical, and biological processes that make water acceptable for a specific use, most importantly drinking, by removing particles and disease-causing microbes.
Water treeing
Water treeing is a degradation process in polymeric power cable insulation, chiefly XLPE, where tree-shaped regions of water-filled microcavities grow slowly under an alternating electric field.
Water truck
A water truck, also called a water wagon or water cart, is a vehicle with a mounted tank, pump, and spray system used for dust control and soil compaction.
Water tunnel
A water tunnel is an excavated conduit carrying water for supply or hydropower, built by drilling and blasting, tunnel boring machines, shields, or hydraulic hammers.
Water turbine
A water turbine, also known as a hydraulic turbine, converts the energy of flowing or falling water into mechanical power, usually to drive an electrical generator in a hydroelectric plant. Types include Francis, Kaplan, and Pelton.
Water Under the Bridge
"Water Under the Bridge" is a song by Adele, co-written and produced by Greg Kurstin. It was released on November 4, 2016, as the final single from her album 25.
Water usage effectiveness
Water usage effectiveness (WUE) is a data center metric expressing annual on-site water use in liters per kilowatt-hour of IT energy, introduced by The Green Grid in 2011.
Water vapor
Water vapor, also called gaseous water, is water in its gas phase. It is Earth's most abundant greenhouse gas, amplifying climate change through a positive feedback loop.
Water vapor feedback
Water vapor feedback is the amplification of global warming that occurs because a warmer atmosphere holds more water vapor, itself a greenhouse gas that traps additional heat.
Water vapor plumes on Europa
Water vapor plumes on Europa are putative eruptions of water vapor from Jupiter's moon Europa, first reported in 2012, whose existence a 2026 reanalysis called into question.
Water vapor thermal therapy
Water vapor thermal therapy (Rezūm) is a minimally invasive transurethral procedure that injects steam into the prostate to relieve urinary symptoms of benign prostatic hyperplasia.
Water vascular system
Water vascular system: hydraulic canal network of echinoderms (sea stars, urchins, cucumbers), entering via the madreporite, driving tube feet for locomotion, feeding, respiration, and excretion; derived from the larval left hydrocoel.
Water Village
Water Village (水村图) is a 1302 ink-on-paper landscape handscroll by the Yuan dynasty artist and calligrapher Zhao Mengfu, a founding statement of the Yuan literati landscape style.
Water wheel
A water wheel, also known as a mill wheel, converts the energy of flowing or falling water into rotary power and was the chief source of mill power for over 2,000 years.
Water-alternating-gas injection
Water-alternating-gas (WAG) injection is an enhanced oil recovery method that injects water and gas into a reservoir in alternating slugs, displacing oil toward production wells and improving sweep efficiency.
Water-based liquid scintillator
Water-based liquid scintillator (WbLS) is a particle-detection medium of organic scintillator droplets stabilized in water, developed at Brookhaven National Laboratory and first described by Minfang Yeh and colleagues in 2011.
Water-fuelled car
A water-fueled car, also called a water-powered car, is a claimed automobile using water as its primary energy source; none has ever worked, since water is not a fuel.
Water-gas shift reaction
The water-gas shift reaction (WGS) is an industrial catalytic reaction converting carbon monoxide and steam into carbon dioxide and hydrogen, first applied industrially in 1915 for ammonia synthesis.
Water-in-salt electrolyte
A water-in-salt electrolyte (WiSE) is a highly concentrated aqueous battery electrolyte in which dissolved salt exceeds the water in weight and volume, first proposed in 2015 at the University of Maryland.
Water-lean solvents for post-combustion CO2 capture
Water-lean solvents are liquid absorbents for post-combustion CO2 capture that keep amine chemistry while replacing most water, cutting regeneration energy by up to 36%; the leading example, EEMPA, was developed at Pacific Northwest National Laboratory.
Water-Moon Avalokiteshvara
Water-Moon Avalokiteshvara, known in Korean as 수월관음도 and Japanese as Suigetsu Kannon, is a Buddhist iconographic type showing Avalokiteshvara on rocks gazing at the moon reflected in water.
Water-sensitive urban design
Water-sensitive urban design (WSUD) is an urban planning approach integrating the whole urban water cycle into design, so stormwater is infiltrated and used near where it falls.
Water-soluble tomato concentrate
Water-soluble tomato concentrate (WSTC, Fruitflow®) is a lycopene-free delipidated tomato extract with an EFSA Article 13(5) antiplatelet health claim (3 g syrup or 150 mg powder daily) and FDA GRAS status (GRN 210, 2007).
Water-source heat pump
A water-source heat pump is a heat pump that transfers heat to or from water instead of outdoor air, drawing from groundwater, surface water, or a building loop.
Water-tube boiler
A water-tube boiler is a steam boiler in which water flows inside tubes surrounded by hot gases, generating steam at far higher pressures than fire-tube boilers.
Water-wave cloak
A water-wave cloak is a metamaterial structure that redirects surface water waves around an enclosed object so the object goes undetectable, first realized for cylindrical obstacles in 2008.
Water-wave cloaking
Water-wave cloaking is a branch of wave physics in which engineered structures redirect surface water waves around a hidden region, eliminating the scattered waves that would reveal it.
Water-window attosecond pulses
Water-window attosecond pulses are bursts of soft X-ray light lasting attoseconds, with photon energies between the carbon and oxygen K-edges (about 282 to 533 eV), where water is transparent and carbon absorbs.
Water–cement ratio
The water–cement ratio, also called the water–cement factor, is the weight of mixing water divided by the weight of cement in a concrete or mortar mix, controlling concrete strength.