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Retr0bright
A TRS-80 Color Computer showing significant yellowing The same computer after treatment, showing yellowing largely reversed Retrobright (stylized as retr0bright or Retrobrite) is a hydrogen peroxide-based process for removing yellowing from ABS plastics. Yellowing in ABS plastic occurs when it is exposed to UV light or excessive heat, which causes photo-oxidation of polymers that breaks polymer chains and causes the plastic to yellow and become brittle. History One method of reversing the yellowed discoloration was first discovered in 2007 in a German retrocomputing forum, before spreading to an English blog where it was further detailed. The process has been continually refined since. Composition Retrobright consists of hydrogen peroxide, a small amount of the "active oxygen" laundry booster TAED as a catalyst, and a source of UV. The optimum mixture and conditions for reversing yellowing of plastics: * A hydrogen peroxide solution. Hydrogen peroxide-based hair bl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CoCo2 Top Before Retr0bright
Coco or variants may refer to: Arts and entertainment Film * ''Coco'' (2009 film), a French comedy film * ''Coco'' (2017 film), an American animated fantasy film * '' Pokémon the Movie: Secrets of the Jungle'' (), a 2020 Japanese anime film * '' Kolamaavu Kokila'', or CoCo, a 2018 Indian Tamil-language black comedy crime film, directed by Nelson Dilipkumar Music * Coco (music), a style of African-influenced music from northern Brazil * ''Coco'' (musical), a 1969 Broadway show about Coco Chanel * Coco Records, a 1970s label founded by Harvey Averne * CoCo (band), a J-pop band * Co-Co (band), British pop band * ''Coco'' (album), by Colbie Caillat, 2007 * ''Coco'', a 2009 album by Parov Stelar * ''Coco'' (soundtrack), from the 2017 film * "Coco" (Wejdene song), 2020 * "Coco" (24kGoldn song), 2020 * "Coco", a 2021 song by PewDiePie * "Coco", a song by Foy Vance from the 2016 album ''The Wild Swan'' * "COCO" (song), by Joel Deleōn, 2022 * "CoCo" (O. T. Genasis song), 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
YouTube
YouTube is an American social media and online video sharing platform owned by Google. YouTube was founded on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim who were three former employees of PayPal. Headquartered in San Bruno, California, it is the second-most-visited website in the world, after Google Search. In January 2024, YouTube had more than 2.7billion monthly active users, who collectively watched more than one billion hours of videos every day. , videos were being uploaded to the platform at a rate of more than 500 hours of content per minute, and , there were approximately 14.8billion videos in total. On November 13, 2006, YouTube was purchased by Google for $1.65 billion (equivalent to $ billion in ). Google expanded YouTube's business model of generating revenue from advertisements alone, to offering paid content such as movies and exclusive content produced by and for YouTube. It also offers YouTube Premium, a paid subs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cleaning Products
Cleaning is the process of removing unwanted substances, such as dirt, infectious agents, and other impurities, from an object or environment. Cleaning is often performed for beauty, aesthetic, hygiene, hygienic, Function (engineering), functional, safety, or environmental protection purposes. Cleaning occurs in many different contexts, and uses many different methods. Several occupations are devoted to cleaning. Contexts Cleaning occurs in various commercial, domestic, personal, and environmental contexts, which differ in scale and requirements. * Commercial cleaning, in business or other commercial settings ** Terminal cleaning, in healthcare settings * Housekeeping, including spring cleaning * Hygiene, including personal grooming * Environmental remediation, the removal of pollution or contaminants from the natural environment Methods Cleaning is broadly achieved through mechanical action and/or chemical processes (usually solvation); many methods rely on a combination of m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ozone
Ozone () (or trioxygen) is an Inorganic compound, inorganic molecule with the chemical formula . It is a pale blue gas with a distinctively pungent smell. It is an allotrope of oxygen that is much less stable than the diatomic allotrope , breaking down in the lower atmosphere to (dioxygen). Ozone is formed from dioxygen by the action of ultraviolet (UV) light and electrical discharges within the Earth's atmosphere. It is present in very low concentrations throughout the atmosphere, with its highest concentration high in the ozone layer of the stratosphere, which absorbs most of the Sun's ultraviolet (UV) radiation. Ozone's odor is reminiscent of chlorine, and detectable by many people at concentrations of as little as in air. Ozone's O3 chemical structure, structure was determined in 1865. The molecule was later proven to have a bent structure and to be weakly diamagnetism, diamagnetic. At standard temperature and pressure, ozone is a pale blue gas that condenses at cryogenic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sodium Percarbonate
Sodium percarbonate or sodium carbonate peroxide is an inorganic compound with the formula . It is an adduct of sodium carbonate ("soda ash" or "washing soda") and hydrogen peroxide (that is, a perhydrate). It is a colorless, crystalline, hygroscopic, and water-soluble solid. It is sometimes abbreviated as SPC. It contains 32.5% by weight of hydrogen peroxide. The product is used in some eco-friendly bleaches and other cleaning products. History Sodium percarbonate was first prepared in 1899 by Ukrainian chemist Sebastian Moiseevich Tanatar (7 October 1849 – 30 November 1917). Structure At room temperature, solid sodium percarbonate has the orthorhombic crystal structure, with the ''Cmca'' crystallographic space group. The structure changes to ''Pbca'' as the crystals are cooled below about −30 °C. Chemistry Dissolved in water, sodium percarbonate yields a mixture of hydrogen peroxide, sodium cations (), and carbonate (). : Production Sodium percarbonate is p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arrowroot
Arrowroot is a starch obtained from the rhizomes (rootstock) of several tropical plants, traditionally ''Maranta arundinacea'', but also Florida arrowroot from ''Zamia integrifolia'', and tapioca from cassava (''Manihot esculenta''), which is often labeled arrowroot. Polynesian arrowroot or pia (''Tacca leontopetaloides''), from Palawan-Philippines arrowroot ("uraro/araro"), Guyana arrowroot (''Dioscorea alata''), Japanese arrowroot (''Pueraria lobata''), also called kudzu, and purple arrowroot ''Canna indica'', are used in similar ways. In Odisha, India, it is called ପାଳୁଅ (paḷua). History Archaeological studies in the Americas show evidence of arrowroot cultivation as early as 7,000 years ago. The name may come from ''aru-aru'' (meal of meals) in the language of the Caribbean Arawak peoples, Arawak people, for whom the plant was a staple. It has also been suggested that the name comes from arrowroot's use in treating Arrow_poison, poison-arrow wounds, as it draws o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xanthan Gum
Xanthan gum () is a polysaccharide with many industrial uses, including as a common food additive. It is an effective thickening agent and stabilizer that prevents ingredients from separating. It can be produced from simple sugars by fermentation and derives its name from the species of bacteria used, '' Xanthomonas campestris''. History Xanthan gum was discovered by Allene Rosalind Jeanes and her research team at the United States Department of Agriculture and brought into commercial production by CP Kelco in the early 1960s under the trade name Kelzan, remaining the only manufacturer in the US. It was approved for use in foods in 1968 and is accepted as a safe food additive in the US, Canada, European countries, and many other countries, with E number E415 and CAS number 11138-66-2. Xanthan gum derives its name from the species of bacteria used during the fermentation process, '' Xanthomonas campestris''. Uses The addition of 1% xanthan gum can produce a significant incr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kotaku
''Kotaku'' is a video game website and blog that was originally launched in 2004 as part of the Gawker Media network. Notable former contributors to the site include Luke Smith, Cecilia D'Anastasio, Tim Rogers, and Jason Schreier. History ''Kotaku'' was first launched in October 2004 with Matthew Gallant as its lead writer, with an intended target audience of young men. About a month later, Brian Crecente was brought in to try to save the failing site. Since then, the site has launched several country-specific sites for Australia, Japan, Brazil and the UK. Crecente was named one of the 20 most influential people in the video game industry over the past 20 years by ''GamePro'' in 2009 and one of gaming's Top 50 journalists by Edge in 2006. The site has made CNET's "Blog 100" list and was ranked 50th on ''PC Magazine''s "Top 100 Classic Web Sites" list. Its name comes from the Japanese '' otaku'' (obsessive fan) and the prefix "ko-" (small in size). In 2009, ''Business I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultraviolet
Ultraviolet radiation, also known as simply UV, is electromagnetic radiation of wavelengths of 10–400 nanometers, shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight and constitutes about 10% of the total electromagnetic radiation output from the Sun. It is also produced by electric arcs, Cherenkov radiation, and specialized lights, such as mercury-vapor lamps, tanning lamps, and black lights. The photons of ultraviolet have greater energy than those of visible light, from about 3.1 to 12 electron volts, around the minimum energy required to ionize atoms. Although long-wavelength ultraviolet is not considered an ionizing radiation because its photons lack sufficient energy, it can induce chemical reactions and cause many substances to glow or fluoresce. Many practical applications, including chemical and biological effects, are derived from the way that UV radiation can interact with organic molecules. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CoCo2 Top After Retr0bright
Coco or variants may refer to: Arts and entertainment Film * ''Coco'' (2009 film), a French comedy film * ''Coco'' (2017 film), an American animated fantasy film * '' Pokémon the Movie: Secrets of the Jungle'' (), a 2020 Japanese anime film * '' Kolamaavu Kokila'', or CoCo, a 2018 Indian Tamil-language black comedy crime film, directed by Nelson Dilipkumar Music * Coco (music), a style of African-influenced music from northern Brazil * ''Coco'' (musical), a 1969 Broadway show about Coco Chanel * Coco Records, a 1970s label founded by Harvey Averne * CoCo (band), a J-pop band * Co-Co (band), British pop band * ''Coco'' (album), by Colbie Caillat, 2007 * ''Coco'', a 2009 album by Parov Stelar * ''Coco'' (soundtrack), from the 2017 film * "Coco" (Wejdene song), 2020 * "Coco" (24kGoldn song), 2020 * "Coco", a 2021 song by PewDiePie * "Coco", a song by Foy Vance from the 2016 album ''The Wild Swan'' * "COCO" (song), by Joel Deleōn, 2022 * "CoCo" (O. T. Genasis song), 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetraacetylethylenediamine
Tetraacetylethylenediamine, commonly abbreviated as TAED, is an organic compound with the formula (CH3C(O))2NCH2CH2N(C(O)CH3)2. It is a white solid commonly used as a bleach activator in laundry detergents and in the production of paper pulp. TAED is synthesized through the acetylation of ethylenediamine. Use and mechanism of action TAED is an important component of laundry detergents that use "active oxygen" bleaching agents. Active oxygen bleaching agents include sodium perborate, sodium percarbonate, sodium perphosphate, sodium persulfate, and urea peroxide. These compounds release hydrogen peroxide during the wash cycle, but the release of hydrogen peroxide is low when these compounds are used in temperatures below . TAED and hydrogen peroxide react to form peroxyacetic acid, a more efficient bleach, allowing lower temperature wash cycles, around . TAED was first used in a commercial laundry detergent in 1978 ( Skip by Unilever). Currently, TAED is the main bleach ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tom's Hardware
''Tom's Hardware'' is an online publication owned by Future plc and focused on technology. It was founded in 1996 by Thomas Pabst. It provides articles, news, price comparisons, videos and reviews on computer hardware and high technology. The site features coverage on CPUs, motherboards, RAM, PC cases, graphic cards, display technology, power supplies and displays, storage, smartphones, tablets, gaming, consoles, and computer peripherals. ''Tom's Hardware'' has a forum and featured blogs. History ''Tom's Hardware'' was founded in 1996 as ''Tom's Hardware Guide'' in Canada by Thomas Pabst. It started using the domain tomshardware.com in September 1997 and was followed by several foreign language versions, including Italian, French, Finnish and Russian based on franchise agreements. While the initial testing labs were in Germany and California, much of ''Tom's Hardware'''s testing now occurs in New York and a facility in Ogden, Utah owned by its parent company. In April 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
