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Blu-Tack
Blu Tack is a reusable putty-like pressure-sensitive adhesive produced by Bostik, commonly used to attach lightweight objects (such as posters or sheets of paper) to walls, doors or other dry surfaces. Traditionally blue, it is also available in other colours. Generic versions of the product are also available from other manufacturers. The spelling now used is without a hyphen. The composition is described as a synthetic rubber compound without hazardous properties under normal conditions. It can be swallowed without harm and is not carcinogenic. It is non-soluble and is denser than water. The material is not flammable, but emits carbon dioxide and carbon monoxide when exposed to fire or high temperatures. As of 2015, Bostik was manufacturing around 100 tonnes of Blu Tack weekly at its Leicester factory. History While the inventor of the commercially released Bostik product is unknown, (Sealant developer Alan Holloway created a similar precursor product at a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blu Tack
Blu Tack is a reusable putty-like pressure-sensitive adhesive produced by Bostik, commonly used to attach lightweight objects (such as posters or sheets of paper) to walls, doors or other dry surfaces. Traditionally blue, it is also available in other colours. Generic versions of the product are also available from other manufacturers. The spelling now used is without a hyphen. The composition is described as a synthetic rubber compound without hazardous properties under normal conditions. It can be swallowed without harm and is not carcinogenic. It is non-soluble and is denser than water. The material is not flammable, but emits carbon dioxide and carbon monoxide when exposed to fire or high temperatures. As of 2015, Bostik was manufacturing around 100 tonnes of Blu Tack weekly at its Leicester factory. History While the inventor of the commercially released Bostik product is unknown, (Sealant developer Alan Holloway created a similar precursor product at a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adhesive Putty 1
Adhesive, also known as glue, cement, mucilage, or paste, is any non-metallic substance applied to one or both surfaces of two separate items that binds them together and resists their separation. The use of adhesives offers certain advantages over other binding techniques such as sewing, mechanical fastenings, or welding. These include the ability to bind different materials together, the more efficient distribution of stress across a joint, the cost-effectiveness of an easily mechanized process, and greater flexibility in design. Disadvantages of adhesive use include decreased stability at high temperatures, relative weakness in bonding large objects with a small bonding surface area, and greater difficulty in separating objects during testing. Adhesives are typically organized by the method of adhesion followed by ''reactive'' or ''non-reactive'', a term which refers to whether the adhesive chemically reacts in order to harden. Alternatively, they can be organized eithe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adhesives
Adhesive, also known as glue, cement, mucilage, or paste, is any non-metallic substance applied to one or both surfaces of two separate items that binds them together and resists their separation. The use of adhesives offers certain advantages over other binding techniques such as sewing, mechanical fastenings, or welding. These include the ability to bind different materials together, the more efficient distribution of stress across a joint, the cost-effectiveness of an easily mechanized process, and greater flexibility in design. Disadvantages of adhesive use include decreased stability at high temperatures, relative weakness in bonding large objects with a small bonding surface area, and greater difficulty in separating objects during testing. Adhesives are typically organized by the method of adhesion followed by ''reactive'' or ''non-reactive'', a term which refers to whether the adhesive chemically reacts in order to harden. Alternatively, they can be organized eithe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressure-sensitive Adhesive
Pressure-sensitive adhesive (PSA, self-adhesive, self-stick adhesive) is a type of nonreactive adhesive which forms a bond when pressure is applied to bond the adhesive with a surface. No solvent, water, or heat is needed to activate the adhesive. It is used in pressure-sensitive tapes, labels, glue dots, stickers, sticky note pads, automobile trim, and a wide variety of other products. As the name "pressure-sensitive" indicates, the degree of bond is influenced by the amount of pressure which is used to apply the adhesive to the surface. Surface factors such as smoothness, surface energy, removal of contaminants, etc. are also important to proper bonding. PSAs are usually designed to form a bond and hold properly at room temperatures. PSAs typically reduce or lose their tack at low temperatures and reduce their shear holding ability at high temperatures; special adhesives are made to function at high or low temperatures. Structural and pressure-sensitive adhesives Adhesives ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZX81
The ZX81 is a home computer that was produced by Sinclair Research and manufactured in Dundee, Scotland, by Timex Corporation. It was launched in the United Kingdom in March 1981 as the successor to Sinclair's ZX80 and designed to be a low-cost introduction to home computing for the general public. It was hugely successful; more than 1.5 million units were sold. In the United States it was initially sold as the ZX-81 under licence by Timex. Timex later produced its own versions of the ZX81: the Timex Sinclair 1000 and Timex Sinclair 1500. Unauthorized ZX81 clones were produced in several countries. The ZX81 was designed to be small, simple, and above all, inexpensive, with as few components as possible. Video output is to a television set rather than a dedicated monitor. Programs and data are loaded and saved onto compact audio cassettes. It uses only four silicon chips and a mere 1 KB of memory. It has no power switch or moving parts, with the exception of a V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elmer's Products, Inc
Elmer's Products, or simply Elmer's is an American-based company that has a line of adhesive, craft, home repair, and office supply products. It is best known as the manufacturer of Elmer's Glue-All, a popular PVA-based synthetic glue, in addition to other brands including Krazy Glue, ProBond and CraftBond adhesives, and X-Acto cutting tools. Introduced by Borden, it was spun off independently in 1999. The company was acquired in 2003 by Berwind Corporation, a privately held investment firm. On October 5, 2015, Newell Rubbermaid announced a $600 million deal to acquire Elmer's Products. The logo for the brand was based upon "Elmer the Bull", mate of Borden's advertising mascot Elsie the Cow, during the 20th century. Elmer's image continues to be featured in the company logo. History On May 11, 1857, with three employees and one product, Gail Borden founded the company that became Borden, Inc. In 1929, Borden purchased the Casein Company of America, the leading ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glue Stick
Glue sticks are solid and hard adhesives in twist or push-up tubes. Users can apply glue by holding the open tube to keep their fingers clean and rubbing the exposed stick against a surface. Applications Most glue sticks are designed to glue paper and card stock together, and are not as strong as some liquid-based variants. They can be used for craft and design, office use and at school. There are several varieties: permanent, washable, acid-free, non-toxic, solvent-free, and dyed (e.g. to see where the glue is being applied). Brands In 1969, the German company Henkel invented the glue stick after studying the "twist-up ease" and convenience of lipstick applicators. The product was released under the Pritt Stick brand. By 1971 the Pritt Stick was being sold in 38 countries, by 2001 in 121. The first solvent-free, multipurpose glue stick that could be used for other materials (e.g. wood, glass and some plastics) was the "PowerPritt", which was put on the market in 2003. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damping (music)
Damping is a technique in music for altering the sound of a musical instrument by reducing oscillations or vibrations. Damping methods are used for a number of instruments. Strings Damping is often necessary on string instruments such as the bass or violin where sympathetic resonance can excite other strings creating undesired noise. This phenomenon can be remedied by keeping fingers such as the thumb on the strings where the vibration is unwanted. On guitar, damping (also referred to as choking) is a technique where, shortly after playing the strings, the sound is reduced by pressing the right hand palm against the strings, right hand damping (including palm muting), or relaxing the left hand fingers' pressure on the strings, left hand damping (or left-hand muting). Scratching is where the strings are played while damped, i.e., the strings are damped before playing. The term presumably refers to the clunky sound produced. In funk music this is often done over a sixteenth note ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Zoo
London Zoo, also known as ZSL London Zoo or London Zoological Gardens is the world's oldest scientific zoo. It was opened in London on 27 April 1828, and was originally intended to be used as a collection for scientific study. In 1831 or 1832, the animals of the Tower of London menagerie were transferred to the zoo's collection. It was opened to the public in 1847. Today, it houses a collection of 673 species of animals, with 19,289 individuals, making it one of the largest collections in the United Kingdom. The zoo is sometimes called Regent's Park Zoo. It is managed under the aegis of the Zoological Society of London (established in 1826), and is situated at the northern edge of Regent's Park, on the boundary line between the City of Westminster and the borough of Camden (the Regent's Canal runs through it). The Society also has a more spacious site at ZSL Whipsnade Zoo in Bedfordshire to which the larger animals such as elephants and rhinos have been moved. As well as bein ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kneaded Eraser
Two kneaded erasers. A newer eraser is on the left, and an older eraser on the right. The older eraser is darker due to the graphite and charcoal dust that has become incorporated into the eraser A kneaded eraser, also commonly known as a putty rubber, is a pliable erasing tool used by artists. It is usually made of a grey or white Vulcanization">unvulcanized rubber (though it can be found in many different colors, such as green, blue, Shades of pink#Hot pink, hot pink, yellow, and so forth) resembling putty or chewing gum. It functions by Absorption (chemistry), absorbing and "picking up" graphite and charcoal particles, in addition to carbon, colored pencil, or pastel marks. It neither wears nor leaves residue ("eraser crumbs"), thereby lasting much longer than other erasers. left, Kneaded eraser is used to remove thin details Kneaded erasers have great plasticity and can be stretched, compressed, split, and molded for precision erasing, pruning lines, cleaning edges, cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afrikaans
Afrikaans (, ) is a West Germanic language that evolved in the Dutch Cape Colony from the Dutch vernacular of Holland proper (i.e., the Hollandic dialect) used by Dutch, French, and German settlers and their enslaved people. Afrikaans gradually began to develop distinguishing characteristics during the course of the 18th century. Now spoken in South Africa, Namibia and (to a lesser extent) Botswana, Zambia, and Zimbabwe, estimates circa 2010 of the total number of Afrikaans speakers range between 15 and 23 million. Most linguists consider Afrikaans to be a partly creole language. An estimated 90 to 95% of the vocabulary is of Dutch origin with adopted words from other languages including German and the Khoisan languages of Southern Africa. Differences with Dutch include a more analytic-type morphology and grammar, and some pronunciations. There is a large degree of mutual intelligibility between the two languages, especially in written form. About 13.5% of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
