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Combined display of all available logs of Vigyanwiki. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

• 12:13, 6 September 2022 Admin talk contribs deleted page अवरोध (content was: "{{short description|Passive electrical component providing electrical resistance}} {{pp|small=yes}} {{Infobox electronic component | component = Resistor | image = 250px | caption = An array of axial-lead resistors | type = Passive | working_principle = Electric resistance | invented = | first_produced = | symbol = File:IEEE 315-...")
• 12:13, 6 September 2022 Admin talk contribs deleted page अवक्षय क्षेत्र (content was: "{{Other uses|Depletion (disambiguation)}} {{Use American English|date = March 2019}} {{Short description|Insulating region in a semiconductor}} अर्धचालक भौतिकी में, घटाव क्षेत्र, जिसे कमी परत, कमी क्षेत्र, जंक्शन क्षेत्र, अंतरिक्ष चार्ज क्षेत्र या अंतरिक्ष चार्ज परत भी कहा...")
• 12:12, 6 September 2022 Admin talk contribs deleted page अनंत आवेग प्रतिक्रिया (content was: "{{Short description|Property of many linear time-invariant (LTI) systems}} {{Unreferenced|date=April 2015}} अनंत आवेग प्रतिक्रिया (IIR) कई रैखिक समय-अपरिवर्तनीय प्रणालियों पर लागू होने वाली एक संपत्ति है जो एक आवेग प्रतिक्रिया होने से प्रतिष्ठित होत...")
• 12:12, 6 September 2022 Admin talk contribs deleted page अण्डाकार फिल्टर (content was: "{{Linear analog electronic filter|filter2=hide|filter3=hide}} एक अण्डाकार फ़िल्टर (जिसे काउर फ़िल्टर के रूप में भी जाना जाता है, जिसका नाम विल्हेम काउरे के नाम पर रखा गया है, या ईगोर ज़ोलोटारेव के बाद ज़ोलोटेरेव फ़िल्टर...")
• 12:11, 6 September 2022 Admin talk contribs deleted page Zinc (content was: "{{About|the chemical element}} {{pp-move-indef}} {{Use mdy dates|date=December 2019}} {{Infobox zinc}} '''Zinc''' is a chemical element with the symbol '''Zn''' and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a silvery-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic table. In some respects, zinc is chemically similar to [[magnesium]...")
• 12:11, 6 September 2022 Admin talk contribs deleted page Zinc pest (content was: "thumb|right|upright|Wheels of a [[Märklin model railroad car 344.6 (H0, 1947..1949), affected by zinc pest]] thumb|right|Two 1930s [[Dinky Toy liners of equal age and storage history, one badly affected, the other not.]] thumb|right|[[Dinky Toy aircraft, completely fragmented by zinc pest]] '''Zinc pest''' (from German ''Zinkpest''), also k...")
• 12:11, 6 September 2022 Admin talk contribs deleted page Yttrium (content was: "{{Short description|Chemical element, symbol Y and atomic number 39}} {{hatnote|Not to be confused with ytterbium. For the hacker group sometimes called YTTRIUM, see Cozy Bear.}} {{pp-move-indef}} {{Infobox yttrium}} Yttrium प्रतीक (रसायन विज्ञान) Y और परमाणु संख्या 39 के साथ एक रासायनिक तत्व है। यह एक चांदी-धातु संक्...")
• 12:10, 6 September 2022 Admin talk contribs deleted page Voltage (content was: "{{Short description|Difference in electric potential between two points in space}} {{other uses}} {{Redirect|Potential difference|other uses|Potential}} {{More citations needed|date=February 2018}} {{Infobox physical quantity |bgcolour = {default} |name = Voltage |image = frameless |caption = Batteries are sources of voltage in many electric circuits. |unit = volt |symbols = {...")
• 12:09, 6 September 2022 Admin talk contribs deleted page Tribocorrosion (content was: "{{short description|Material degradation due to corrosion and wear.}} '''Tribocorrosion''' is a material degradation process due to the combined effect of corrosion and wear.<ref>D. Landolt, Electrochemical and materials aspects of tribocorrosion systems, J. Physics D: Appl. Phys. 39, 1-7 (2006)</ref> The name tribocorrosion expresses the underlying disciplines of tribology and corrosion. Tribology is concerned with the study of friction,...")
• 12:09, 6 September 2022 Admin talk contribs deleted page Trairasika (Rule of Three) (content was: "==Introduction== In the ancient Indian mathematical texts topics like ratio, proportion etc are dealt under the section rule of three. Ratio is used whenever comparison involving numbers. For example: Cost of a bicycle is Rs. 10,000 and that of a motor bike is Rs. 1,00,000. when we compare the cost of both the items. <math>\frac{100000}{100...", and the only contributor was "[[Special:Contributions/alpha>Ramamurthy S|alpha>Ramamurthy S]]" ([[User talk:alpha>Ramamurthy S|talk]]))
• 12:09, 6 September 2022 Admin talk contribs deleted page Thermoplastic-sheathed cable (content was: "{{short description|Type of electrical cable for building wiring}} {{Use dmy dates|date=January 2021}} {{Electrical Wiring Sidebar}} A '''thermoplastic-sheathed cable''' (TPS) consists of a toughened outer sheath of polyvinyl chloride (PVC) thermoplastic, covering one or more individual annealed copper conductors, themselves insulated with PVC. This type of wiring is commonly used for residential and light commercial construction in many countries...")
• 12:09, 6 September 2022 Admin talk contribs deleted page Test Performace3 (content was: "बीजगणित में, '''अनिश्चित समीकरण''' एक ऐसा समीकरण होता है जिसके एक से अधिक हल होते हैं।<ref>[https://en.wikipedia.org/wiki/Indeterminate_equation]"Indeterminate equation"</ref> भास्कर द्वितीय का नियम <ref>Datta, Bibhutibhusan; Narayan Singh, Avadhesh (1962). ''History of Hindu...")
• 12:09, 6 September 2022 Admin talk contribs deleted page Salt spray test (content was: "{{Short description|Corrosion test method}} The '''salt spray test ''' (or '''salt fog test''') is a standardized and popular corrosion test method, used to check corrosion resistance of materials and surface coatings. Usually, the materials to be tested are metallic (although stone, ceramics, and polymers may also be tested) and finished with a surface coating which is intended to provide a degree of corrosion protection to the underlying metal. Salt spray tes...")
• 12:08, 6 September 2022 Admin talk contribs deleted page Stress corrosion cracking (content was: "{{Short description|Growth of cracks in a corrosive environment}} {{More citations needed|date=December 2007}} <!-- taken from Fracture mechanics --> thumb|upright=1.5|A close-up of the surface of a steel pipeline showing stress corrosion cracking (two clusters of small black lines) revealed by [[magnetic particle inspection. Cracks which would normally have been invisible are detectable due to the magne...")
• 12:08, 6 September 2022 Admin talk contribs deleted page Srinivasa Ramanujan (content was: "{{Infobox person | name = Srinivasa Ramanujan | image = Srinivasa Ramanujan - OPC - 2 (cleaned).jpg | birth_date = 22 December 1887 | birth_place = Erode | death_date = 26 April 1920 (aged 32) | death_place = Kumbakonam | awards = Fellow of the Royal Society }} '''Srinivasa Ramanujan'''  born '''Srinivasa Ramanujan Aiyangar''',  (22 December 1887 – 26 April 1920)<ref>{{Cite web|title=Srinivasa_Ramanujan|u...")
• 12:08, 6 September 2022 Admin talk contribs deleted page Sridhara (content was: "'''Śrīdhara''', '''Śrīdharācāryya''' or '''Śrīdhara Acharya''' (<abbr>c.</abbr> 870 CE – <abbr>c.</abbr> 930 CE) was an Indian mathematician, Sanskrit pundit and philosopher. Sridhara was an Indian mathematician who wrote on practical applications of algebra and was one of the first to give a formula for solving quadratic equations.<ref>{{Cite web|title=Sridhara|url=https://mathshistory.st-andrews.ac.uk/Biographies/Sridhara/}}</ref> Sridhara is the author of two math...")
• 12:08, 6 September 2022 Admin talk contribs deleted page Seawater (content was: "{{short description|Water from a sea or an ocean}} {{Use dmy dates|date=October 2016}} thumb|upright=1.35|Seawater off [[San Andrés (island)|San Andrés]] {{Water salinity}} {{redirect|Ocean water|the standard for isotope composition of pure water|Vienna Standard Mean Ocean Water}} thumb|Temperature-salinity diagram of changes in density of water File:WaterDepthSalinity.png|thumb|Ocean sa...")
• 12:08, 6 September 2022 Admin talk contribs deleted page Scope and development of Hindu Mathematics (content was: "<ref>{{Cite web|title=Introduction to Ganita|url=https://indicportal.org/introduction-to-ganita/}}</ref><ref>{{Cite book|last=Datta|first=Bibhutibhusan|title=History of Hindu Mathematics|last2=Narayan Singh|first2=Avadhesh|publisher=Asia Publishing House|year=1962|location=Mumbai}}</ref>The Hindu name for mathematics is Gaṇita , literary meaning of Gaṇita is "the science of calculation". This name is very ancient one {{Infobox person | name = Hindu Mathemati...")
• 12:07, 6 September 2022 Admin talk contribs deleted page Scanning vibrating electrode technique (content was: "'''Scanning vibrating electrode technique''' ('''SVET'''), also known as '''vibrating probe''' within the field of biology, is a scanning probe microscopy (SPM) technique which visualizes electrochemical processes at a sample. It was originally introduced in 1974 by Jaffe and Nuccitelli to investigate the electrical current densities near living cells.<ref name=":02">{{Cite journal|last=Jaffe|first=L. F.|date=1974-11-01|journal=...")
• 12:07, 6 September 2022 Admin talk contribs deleted page Saline water (content was: "{{Short description|Water that contains a high concentration of dissolved salts}}{{redirect|Salt water|water in the oceans|Seawater|other uses}} {{about||saline solution in medicine and life science|Saline (medicine)||Saline (disambiguation)}} {{Water salinity}} '''Saline water''' (more commonly known as '''salt water''') is water that contains a high concentration of dissolved salts (mainly sodium chloride). The salt concentration is usually expresse...")
• 12:07, 6 September 2022 Admin talk contribs deleted page Redox (content was: "{{short description|Chemical reaction in which oxidation states of atoms are changed}} {{other uses}} {{Use mdy dates|date=November 2020}} {{Use American English|date=November 2020}} upright=1.6|thumb|right|[[Sodium and fluorine bonding ionically to form sodium fluoride. Sodium loses its outer electron to give it a stable electron configuration, and this electron enters the fluorine atom exothermically. The oppositely charged ions are then a...")
• 12:07, 6 September 2022 Admin talk contribs deleted page Reduction potential (content was: "{{Short description|Measure of the tendency of a substance to gain or lose electrons}} {{EngvarB|date = April 2019}} '''Redox potential''' (also known as '''oxidation / reduction potential''', ''ORP'', ''pe'', ''<math>E_{red}</math>'', or <math>E_{h}</math>) is a measure of the tendency of a chemical species to acquire electrons from or lose electrons to an electrode and thereby be reduced or oxidised respectively. Redox potential is measured in volts (V), or '''mil...")
• 12:07, 6 September 2022 Admin talk contribs deleted page Rouging (content was: "{{refimprove|date=September 2018}} '''Rouging''' is a form of corrosion found in stainless steel.<ref>{{Cite web|url=http://www.pharmtech.com/preventive-and-corrective-maintenance-rouge-stainless-steel-equipment|title=Preventive and Corrective Maintenance for Rouge in Stainless-Steel Equipment|last=Rivera, Hadziselimovic, Lopolito|date=2017-02-15|website=PharmTech|access-date=2019-04-12}}</ref> It can be due to iron contamination of the stainless steel surface due t...")
• 12:06, 6 September 2022 Admin talk contribs deleted page Periodic table (content was: "{{short description|Tabular arrangement of the chemical elements ordered by atomic number}} {{About|the table used in chemistry and physics|other uses|Periodic table (disambiguation)}} {{pp-move-indef}} {{pp-protected|reason=Restoring indefinite semiprotection after full protection expired|small=yes}} {{Use Oxford spelling|date=March 2019}} {{Use dmy dates|date=March 2022}} {{Featured article}} right|435x435px The '''periodic tabl...")
• 12:06, 6 September 2022 Admin talk contribs deleted page Pitting resistance equivalent number (content was: "{{Short description|Predictive measurement of stainless steel resistance to localized pitting corrosion}} {{refimprove|date=September 2012}} '''Pitting resistance equivalent number''' ('''PREN''') is a predictive measurement of a stainless steel's resistance to localized pitting corrosion based on its chemical composition. In general: the higher PREN-value, the more resistant is the stainless steel to localized pitting corrosion by chloride. PREN...")
• 12:06, 6 September 2022 Admin talk contribs deleted page Physics (content was: "thumb Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. Physics is one of the most fundamental scientific disciplines, and its main goal is to understand how the universe behaves. [https://hcverma.in Physics] is one of the oldest academic disciplines and, through its inclusion of astronomy, perhaps the oldest. Over much of the past...")
• 12:06, 6 September 2022 Admin talk contribs deleted page Parikarmastaka - Fundamental Operations (content was: "== Introduction == Arithmetic deals with calculations using numbers. Pāṭīgaṇita is the Samskrit word for arithmetic and geometry .Pāṭīgaṇita {{Infobox person | name = Mathematical Operations | image = Arithmetic_symbols|150px }} is formed by combining the words Pāṭī (...", and the only contributor was "[[Special:Contributions/alpha>Ramamurthy S|alpha>Ramamurthy S]]" ([[User talk:alpha>Ramamurthy S|talk]]))
• 12:06, 6 September 2022 Admin talk contribs deleted page Paramesvara (content was: "Parameśvara (1380-1460 CE) <ref>{{Cite web|title=Parameshvara_Nambudiri|url=https://en.wikipedia.org/wiki/Parameshvara_Nambudiri}}</ref>was a major Indian mathematician and astronomer of the Kerala school of astronomy and mathematics founded by Madhava of Sangamagrama. His works are mentioned below. * ''Bhatadipika'' – Commentary on Āryabhaṭīya of Āryabhaṭa I * ''Karmadipika'' – Commentary on ''Mahabhaskariya'' of Bhaskara I * ''Paramesvari''...")
• 12:06, 6 September 2022 Admin talk contribs deleted page PH (content was: "{{Short description|Measure of the acidity or basicity of an aqueous solution}} {{Other uses|PH (disambiguation)}} {{pp-move-indef}} {{Lowercase title}} {{Use dmy dates|date=February 2021}} upright=1|thumb|right|Test tubes containing solutions of pH 1–10 colored with [[Universal indicator|an indicator]] {{Acids and bases}} In chemistry, '''pH''' ({{IPAc-en|p|iː|ˈ|eɪ|tʃ}}), historically denoting "potential of hydrogen" (or "power of hydrogen...")
• 12:05, 6 September 2022 Admin talk contribs deleted page Nilakantha Somasutvan (content was: "Nīlakaṇṭha Somasutvan (1444-1545 CE)<ref>{{Cite book|title=A Primer to Bhāratīya Gaṇitam , Bhāratīya-Gaṇita-Praveśa- Part-1|publisher=Samskrit Promotion Foundation|year=2021|isbn=978-81-951757-2-7}}</ref> was a great astronomer studied under  Dāmodara, son of Parameśvara<ref>{{Cite web|title=Damodara|url=https://en.wikipedia.org/wiki/Damodara}}</ref>. In the year 1500 CE , Nīlakaṇṭha Somasutvan has authored Tantra-Saṅgraha  which is an astronomical trea...")
• 12:05, 6 September 2022 Admin talk contribs deleted page MOSFET (content was: "{{Short description|Type of field-effect transistor}} thumb|upright=1.6|MOSFET गेट (G), बॉडी (B), सोर्स (S) और ड्रेन (D) टर्मिनल दिखा रहा है। एक इन्सुलेट परत (गुलाबी) द्वारा गेट को शरीर से अलग किया जाता है। धातु-ऑक्साइड-अर्धचालक क्षे...")
• 12:05, 6 September 2022 Admin talk contribs deleted page Materials science (content was: "{{short description|Interdisciplinary field which studies the discovery and design of new materials}} thumb|upright=1.2|A [[diamond cuboctahedron showing seven crystallographic planes, imaged with scanning electron microscopy]] The interdisciplinary field of '''materials science''' covers the design and discovery of new materials, particularly solids. The field is also commonly termed '''materials scien...")
• 12:04, 6 September 2022 Admin talk contribs deleted page Mechanical engineering (content was: "{{short description|Engineering discipline}} {{Use dmy dates|date=March 2021}} {{Infobox occupation |name= Mechanical engineering |image= |caption= |official_names= Mechanical Engineer |type= |activity_sector= applied mechanics, dynamics, thermodynamics, fluid mechanics, heat transfer, production technology, and others |competencies= technical knowledge, management skills, design (see also glossary of mechanical engineering) |...")
• 12:04, 6 September 2022 Admin talk contribs deleted page Mahavira (content was: "Mahāvīra or Mahāvīracharya was a 9th-century Jain mathematician born in Mysore, in Southern India. He was born in the year 815 AD<ref>{{Cite web|title=Mahāvīra|url=https://vedicmathschool.org/mahavira/}}</ref>. ''Gaṇitasārasan̄graha'' was authored by Mahāvīra. He was in the royal court of king Amoghavarsha of Rashtrakuta dynasty. ''Gaṇitasārasan̄graha'' has the following chapters<ref>{{Cite web|title=Gaṇitasārasan̄graha|url=https://en.wikipedia.org/wiki...")
• 12:04, 6 September 2022 Admin talk contribs deleted page Madhava (content was: "Mādhava (1340 -1425 CE) <ref>{{Cite web|title=Madhava_of_Sangamagrama|url=https://en.wikipedia.org/wiki/Madhava_of_Sangamagrama}}</ref>was a Hindu mathematician and astronomer  from the town believed to be present-day Kallettumkara, Aloor Panchayath, Irinjalakuda in Thrissur District, Kerala, India. He is the founder of the Kerala school of astronomy and mathematics. Among his many contributions, he discovered infinite series for the trigonometric functions of sine, cosine,...")
• 12:03, 6 September 2022 Admin talk contribs deleted page Irrigation (content was: "{{short description|Artificial application of water to land}} {{about|irrigation for agriculture and landscapes||}} {{Redirect|Watering|the river in Germany|Wätering}} {{Lead too short|date=April 2021}} thumb|Irrigation of agricultural fields in [[Andalusia, Spain. Irrigation canal on the left.]] '''Irrigation''' is the agricultural process of applying controlled amounts of water to land to assist in the production of crops,<ref>...")
• 12:03, 6 September 2022 Admin talk contribs deleted page JFET (content was: "{{refimprove|date=September 2015}} {{short description|Type of field-effect transistor}} {{Infobox electronic component |name = JFET |image =Image:Jfet.png |image_size = 270px |caption =Electric current from ''source'' to ''drain'' in a '''p-channel JFET''' is restricted when a voltage is applied to the ''gate''. |type = Active |working_principle = |invented = |first_produced = |symbol = I...")
• 12:03, 6 September 2022 Admin talk contribs deleted page Kelvin probe force microscope (content was: "{{short description|Noncontact variant of atomic force microscopy}} thumb|400px|In Kelvin probe force microscopy, a conducting cantilever is scanned over a surface at a constant height in order to map the work function of the surface. File:SKP Typical Instrument.jpg|alt=Scanning Kelvin probe instrument|thumb|A typical scanning Kelvin probe (SKP) instrument. On the left is the control unit with lock-in amplifier and backing potential...")
• 12:03, 6 September 2022 Admin talk contribs deleted page Industrial engineering (content was: "{{short description|Branch of engineering which deals with the optimization of complex processes or systems}} {{Use mdy dates|date=August 2016}} {{More footnotes|date=January 2017}} thumb|right|230px|Industrial engineers in a factory. '''Industrial Engineering''' is an engineering profession that is concerned with the optimization of complex processes, systems, or organizations by developing, improving a...")
• 12:02, 6 September 2022 Admin talk contribs deleted page Hydraulic engineering (content was: "{{Short description|Sub-discipline of civil engineering concerned with the flow and conveyance of fluids}} {{distinguish|Hydrologic engineering}} thumb|250px|Hydraulic Flood Retention Basin (HFRB) thumb|250px|View from Church Span Bridge, [[Bern, Switzerland]] thumb|250px|[[Riprap lining a lake shore]] '''Hydraulic engineering''' as a sub-discipline of [...")
• 12:02, 6 September 2022 Admin talk contribs deleted page Hydrogen embrittlement (content was: "{{Short description|Embrittlement of a metal exposed to hydrogen}} thumb|upright=1.5|Hydrogen-Induced Cracks (HIC) {{Mechanical failure modes}} '''Hydrogen embrittlement''' (HE) also known as '''hydrogen assisted cracking''' or '''hydrogen-induced cracking''', describes the embrittlement of a metal by hydrogen. The essential facts about the nature of the hydrogen embrittlement of steels have now been known for 140 years.<ref n...")
• 12:02, 6 September 2022 Admin talk contribs deleted page Hydrogen analyzer (content was: "{{Unreferenced stub|auto=yes|date=December 2009}} A '''hydrogen analyzer''' is a device used to measure the hydrogen concentration in steels and alloys. It also has industrial applications for corrosion monitoring. ==See also== * Hydrogen embrittlement * Hydrogen leak testing * Hydrogen sensor {{DEFAULTSORT:Hydrogen Analyzer}} Category:Hydrogen technologies Category:Metallurgical processes {{Chem-stub}}")
• 12:02, 6 September 2022 Admin talk contribs deleted page Glass-ceramic-to-metal seals (content was: "{{multiple issues|{{no footnotes|date=June 2017}} {{one source|date=June 2017}}}} Glass-to-metal seals have been around for many years, with one of the most common uses being lamp bulb seals. A more recent invention is '''glass-ceramic-to-metal seals'''. ==Properties== ''Glass-ceramics'' are polycrystalline ceramic materials prepared by the controlled crystallization of suitable glasses, normally silicates. Depending on the starting glass composition and the heat-t...")
• 12:02, 6 September 2022 Admin talk contribs deleted page Fresh water (content was: "{{Short description|Naturally occurring water with low amounts of dissolved salts}} {{Redirect|Freshwater}} {{About|a naturally occurring type of water|all types of waters that are of potential use to humans|water resources}} {{Use dmy dates|date=July 2014}} {{multiple image | align = right | direction = vertical | width = | image1=Amazonas, Iquitos - Leticia, Kolumbien (11472506936).jpg | alt1 = Amazon River near Iquitos, Peru | caption1 = | image2=Cove with Shamans Rock O...")
• 12:01, 6 September 2022 Admin talk contribs deleted page Forensic engineering (content was: "{{Short description|Investigation of failures associated with legal intervention}} {{More footnotes|date=May 2014}} {{ForensicScience|disciplines|image=Dent cassee sur une roue spiro-conique.jpg}} '''Forensic engineering''' has been defined as ''"the investigation of failures - ranging from serviceability to catastrophic - which may lead to legal activity, including both civil and criminal".''<ref>{{Cite book|title=Forensic Engineering - a professional approach to investigatio...")
• 12:01, 6 September 2022 Admin talk contribs deleted page Fire protection engineering (content was: "{{Short description|Formal approach to protecting against fires}} {{redirect|Fire engineering|the magazine|Fire Engineering (magazine)}} {{More citations needed|date=July 2009}} '''Fire protection engineering''' is the application of science and engineering principles to protect people, property, and their environments from the harmful and destructive effects of fire and smoke. It encompasses engineering which focuses on fire detection, suppression and mitigation a...")
• 12:01, 6 September 2022 Admin talk contribs deleted page Fibre-reinforced plastic tanks and vessels (content was: "FRP (Fibreglass Reinforced Plastics, also known as GRP, or Glass Reinforced Plastics) is a modern composite material of construction for chemical plant equipment like tanks and vessels. Chemical equipment that range in size from less than a metre to 20 metres <ref>{{cite journal|doi = 10.1016/s0034-3617(05)70798-0 |journal=Reinforced Plastics |title= World's largest FRP acid stora...")
• 12:01, 6 September 2022 Admin talk contribs deleted page Faraday paradox (electrochemistry) (content was: "{{About|Faraday paradox in electrochemistry|Faraday paradox in electromagnetism|Faraday paradox}} {{Multiple issues| {{Refimprove|date=June 2016}} {{essay-like|date=October 2008}} }} The '''Faraday paradox''' was a once inexplicable aspect of the reaction between nitric acid and steel. Around 1830, the English scientist Michael Faraday found that diluted nitric acid would attack steel, but concentrated nitric acid would not.<ref>Digby D. Macdonald, ''P...")
• 12:01, 6 September 2022 Admin talk contribs deleted page Equations (content was: "{{Infobox person | name = Equations | image = 150px }} == Forming Equations == We need to carry out certain preliminary operations on equations before moving into actual solution. We need to form the equation ( ''samī-karaṇa, samī-kāra'' or ''samī-kriyā; from sama, eq...", and the only contributor was "[[Special:Contributions/alpha>Ramamurthy S|alpha>Ramamurthy S]]" ([[User talk:alpha>Ramamurthy S|talk]]))
• 12:01, 6 September 2022 Admin talk contribs deleted page Environmental stress fracture (content was: "{{short description|Generic name for premature failure under the influence of tensile stresses and harmful environments}} In materials science, '''environmental stress fracture''' or '''environment assisted fracture''' is the generic name given to premature failure under the influence of tensile stresses and harmful environments of materials such as metals and alloys, composites, plastics and ceramics. Meta...")