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Sponge (tool)
A sponge ( ) is a cleaning aid made of soft, porous material. Typically used for cleaning impervious surfaces, sponges are especially good at absorbing water and water-based solutions. Originally made from natural sea sponges, they are most commonly made from synthetic materials today. Etymology The word comes from the Ancient Greek term (), which in turn is probably derived from a Mediterranean Pre-Indo European substrate. History The first reference of sponges used for hygiene dates from Ancient Greece. Competitors of the Olympic Games bathed themselves with sea sponges soaked in olive oil or perfume before competing. In the book ''Odyssey'' by the Greek poet Homer, the god Hephaestus cleans his hands, face, and chest with a sea sponge, and the servants in the Odysseus palace used sea sponges to clean the tables after the meals the suitors of Penelope had there. The Greek philosophers Aristotle and Plato mentioned sea sponges in both scientific and historic contexts i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xylospongium
The xylospongium or tersorium, also known as a "sponge on a stick", was a utensil found in ancient Roman latrines, consisting of a wooden stick (Ancient Greek, Greek: , ''xylon'') with a sea sponge (Greek: , ''spongos'') fixed at one end. Academics disagree as to its exact use, about which the primary sources are vague. It has traditionally been assumed to be a type of shared Anal hygiene, anal hygiene utensil used to wipe after defecating, and the sponge cleaned in vinegar or water (sometimes salt water). Other recent research suggests it was most likely a toilet brush. In the Baths at Ostia#Baths of the Seven Sages, Baths of the Seven Sages in Ostia (Rome), Ostia, a fresco from the 2nd century contains the Inscription ''(u)taris xylosphongio'' which is the first known mention of the term. Also in the early second century a papyrus letter of Claudius Terentianus to his father Claudius Tiberianus uses the term ''xylespongium'' in a phrase. In the middle of the first century, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biodegradable
Biodegradation is the breakdown of organic matter by microorganisms, such as bacteria and fungi. It is generally assumed to be a natural process, which differentiates it from composting. Composting is a human-driven process in which biodegradation occurs under a specific set of circumstances. The process of biodegradation is threefold: first an object undergoes biodeterioration, which is the mechanical weakening of its structure; then follows biofragmentation, which is the breakdown of materials by microorganisms; and finally assimilation, which is the incorporation of the old material into new cells. In practice, almost all chemical compounds and materials are subject to biodegradation, the key element being time. Things like vegetables may degrade within days, while glass and some plastics take many millennia to decompose. A standard for biodegradability used by the European Union is that greater than 90% of the original material must be converted into , water and minerals b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood Fiber
Wood fibres (also spelled wood fibers, see spelling differences) are usually cellulosic elements that are extracted from trees and used to make materials including paper. The end paper product (paper, paperboard, tissue, cardboard, etc.) dictates the species, or species blend, that is best suited to provide the desirable sheet characteristics, and also dictates the required fibre processing (chemical treatment, heat treatment, mechanical "brushing" or refining, etc.). In North America, virgin (non-recycled) wood fibre is primarily extracted from hardwood (deciduous) trees and softwood (coniferous) trees. The wood fibre can be extracted as a primary product, or collected during the milling of lumber. Wood fibres can also be recycled from used paper materials. Paper Wood fibres are treated by combining them with other additives which break down the fibres into a spongy mass called pulp. The pulp is then processed, and the network of tiny fibres is pressed flat, becoming paper. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science Of The Total Environment
Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. Modern science is typically divided into twoor threemajor branches: the natural sciences, which study the physical world, and the social sciences, which study individuals and societies. While referred to as the formal sciences, the study of logic, mathematics, and theoretical computer science are typically regarded as separate because they rely on deductive reasoning instead of the scientific method as their main methodology. Meanwhile, applied sciences are disciplines that use scientific knowledge for practical purposes, such as engineering and medicine. The history of science spans the majority of the historical record, with the earliest identifiable predecessors to modern science dating to the Bronze Age in Egypt and Mesopotamia (). Their contributions to mathematics, astronomy, and medicine entered and shaped the Greek natural phi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nanoplastics
Microplastics are "synthetic solid particles or polymeric matrices, with regular or irregular shape and with size ranging from 1 μm to 5 mm, of either primary or secondary manufacturing origin, which are insoluble in water." Microplastics are dangerous to human health and the environment because they contain harmful chemicals which leak into the air, water, and food. Microplastics cause pollution by entering Nature, natural ecosystems from a variety of sources, including cosmetics, clothing, construction, renovation, food packaging, and industrial processes. The term ''microplastics'' is used to differentiate from larger, non-microscopic plastic waste. Two classifications of microplastics are currently recognized. Primary microplastics include any plastic fragments or particles that are already 5.0 mm in size or less before entering the Natural environment, environment. These include microfibers from clothing, microbeads, plastic glitter and Nurdle (bead), plastic pelle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scouring Pad
A scouring pad or scourer is a small pad of metal or plastic mesh used for wiktionary:scour, scouring a surface. Some scouring pads have one side made of a soft sponge-like material and the other is the aforementioned mesh. History The scouring pad has been reincarnated in several forms over the years. In 1928, R. B. Kingman patented the scouring ball, which was one of the first scouring pads made of a metal mesh. On 30 September 1941United States patent 2,257,456was issued to Joseph R. Crockford of Chicago, IL for a scouring device of the type employed for "cleansing and scouring pots, pans and other household implements." The invention provided for a "plate of non-corrosive metal, arched or curved to fit the fingers." In 1942, David J. Kelman patented a toroidal metal scouring pad. This was, and still is, used as an abrasive scrubbing pad, however, it is becoming less common, as it removes non-stick surfaces off pans. On June 19, 1962, Alfred Benjamin patented the stainles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyurethane Foam
Polyurethane foam is a solid polymeric foam based on polyurethane chemistry. As a specialist synthetic fibre, synthetic material with highly diverse applications, polyurethane foams are primarily used for thermal insulation and as a cushioning material in mattresses, upholstered furniture or as seating in vehicles. Its low density and thermal conductivity combined with its mechanical properties make them excellent thermal and sound insulators, as well as structural and comfort materials. Polyurethane foams are Thermosetting polymer, thermosetting polymers. They cannot be melted and reshaped after initially formed, because the chemical bonds between the molecules in the material are very strong and are not broken down by heating. Once cured and cooled, the material maintains its shape and properties.EURO-MOULDERS (2023) 'What is polyurethane foam' https://euromoulders.org/polyurethane-in-automobiles/what-is-polyurethane-foam/ Classification of polyurethane foams Polyurethane foa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyester
Polyester is a category of polymers that contain one or two ester linkages in every repeat unit of their main chain. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Polyesters include some naturally occurring chemicals, such as those found in plants and insects. Natural polyesters and a few synthetic ones are biodegradable, but most synthetic polyesters are not. Synthetic polyesters are used extensively in clothing. Polyester fibers are sometimes spun together with natural fibers to produce a cloth with blended properties. Cotton-polyester blends can be strong, wrinkle- and tear-resistant, and reduce shrinking. Synthetic fibers using polyester have high water, wind, and environmental resistance compared to plant-derived fibers. They are less Fireproofing, fire-resistant and can melt when ignited. Liquid crystalline polyesters are among the first industrially used liquid crystal polymers. They are used for their mechanical propert ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crucifixion Of Jesus
The crucifixion of Jesus was the death of Jesus by being crucifixion, nailed to a cross.The instrument of Jesus' crucifixion, instrument of crucifixion is taken to be an upright wooden beam to which was added a transverse wooden beam, thus forming a "cruciform" or T-shaped structure. It occurred in 1st-century Roman Judaea, Judaea, most likely in AD 30 or AD 33. The event is described in the four canonical gospels, referred to in the New Testament epistles, and later attested to by #Other accounts and references, other ancient sources. Scholars nearly universally accept the Historicity of Jesus, historicity of Jesus's crucifixion, although there is no consensus on the details.Christopher M. Tuckett in ''The Cambridge companion to Jesus'' edited by Markus N. A. Bockmuehl 2001 Cambridge Univ Press pp. 123–124 According to the canonical gospels, Jesus was Arrest of Jesus, arrested and Sanhedrin trial of Jesus, tried by the Sanhedrin, and then Pilate's court, sentenced by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holy Sponge
The Holy Sponge is one of the Instruments of the Passion of Jesus. It was dipped in vinegar (; in some translations sour wine), most likely posca, a regular beverage of Roman soldiers, and offered to Jesus to drink from during the Crucifixion, according to Matthew 27:48, Mark 15:36, and John 19:29. History Jerusalem An object thought to be the Holy Sponge was venerated in the Holy Land, in the Upper Room of the Constantinian basilica, where Sophronius of Jerusalem spoke of it : Rome In the Basilica di San Giovanni in Laterano in Rome, a brown sponge is venerated. Other pieces of sponge are present at the following: * the Basilica di Santa Maria Maggiore * the Basilica di Santa Maria in Trastevere * St. Mary in Campitelli The Chapel of the Relics at Santa Croce in Gerusalemme houses another sponge: Constantinople and France In the 7th century, Nicetas took part in the conquest of Egypt from Phocas. He was famed for bringing items he claimed were the Holy Sponge and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
