1.
Stainless steel
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In metallurgy, stainless steel, also known as inox steel or inox from French inoxydable, is a steel alloy with a minimum of 10. 5% chromium content by mass. Stainless steel is notable for its resistance, and it is widely used for food handling. Stainless steel does not readily corrode, rust or stain with water as ordinary steel does, however, it is not fully stain-proof in low-oxygen, high-salinity, or poor air-circulation environments. There are various grades and surface finishes of stainless steel to suit the environment the alloy must endure, Stainless steel is used where both the properties of steel and corrosion resistance are required. Stainless steel differs from carbon steel by the amount of chromium present, unprotected carbon steel rusts readily when exposed to air and moisture. This iron oxide film is active and accelerates corrosion by making it easier for more iron oxide to form, since iron oxide has lower density than steel, the film expands and tends to flake and fall away. In comparison, stainless steels contain sufficient chromium to undergo passivation and this layer prevents further corrosion by blocking oxygen diffusion to the steel surface and stops corrosion from spreading into the bulk of the metal. Passivation occurs only if the proportion of chromium is high enough, Stainless steel’s resistance to corrosion and staining, low maintenance, and familiar lustre make it an ideal material for many applications. Storage tanks and tankers used to transport orange juice and other food are made of stainless steel. This also influences its use in kitchens and food processing plants, as it can be steam-cleaned and sterilized. High oxidation resistance in air at ambient temperature is achieved with addition of a minimum of 13% chromium. The chromium forms a layer of chromium oxide when exposed to oxygen. The layer is too thin to be visible, and the metal remains lustrous, the layer is impervious to water and air, protecting the metal beneath, and this layer quickly reforms when the surface is scratched. This phenomenon is called passivation and is seen in other metals, corrosion resistance can be adversely affected if the component is used in a non-oxygenated environment, a typical example being underwater keel bolts buried in timber. When stainless steel parts such as nuts and bolts are forced together, when forcibly disassembled, the welded material may be torn and pitted, a destructive effect known as galling. Galling can be avoided by the use of materials for the parts forced together, for example bronze and stainless steel. However, two different alloys electrically connected in a humid, even mildly acidic environment may act as a voltaic pile, nitronic alloys, made by selective alloying with manganese and nitrogen, may have a reduced tendency to gall. Additionally, threaded joints may be lubricated to provide a film between the two parts and prevent galling, low-temperature carburizing is another option that virtually eliminates galling and allows the use of similar materials without the risk of corrosion and the need for lubrication
2.
Cookware and bakeware
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Cookware and bakeware are types of food preparation containers, commonly found in a kitchen. Cookware comprises cooking vessels, such as saucepans and frying pans, bakeware comprises cooking vessels intended for use inside an oven. Some utensils are considered both cookware and bakeware, some choices of material also require special pre-preparation of the surface—known as seasoning—before they are used for food preparation. Both the cooking pot and lid handles can be made of the material but will mean that. In order to avoid this, handles can be made of non-heat-conducting materials, for example bakelite and it is best to avoid hollow handles because they are difficult to clean or to dry. A good cooking pot design has an edge which is what the lid lies on. The lid has an edge that avoids condensation fluid from dripping off when handling the lid or putting it down. The history of cooking vessels before the development of pottery is due to the limited archaeological evidence. The earliest pottery vessels, dating from 19, 600±400 BP, were discovered in Xianrendong Cave, Jiangxi, the pottery may have been used as cookware, manufactured by hunter-gatherers. Harvard University archaeologist Ofer Bar-Yosef reported that When you look at the pots and it is also possible to extrapolate likely developments based on methods used by latter peoples. Among the first of the believed to be used by stone age civilizations were improvements to basic roasting. Examples of similar techniques are still in use in many modern cuisines, of greater difficulty was finding a method to boil water. For people without access to heated water sources, such as hot springs. In many locations the shells of turtles or large mollusks provided a source for waterproof cooking vessels, according to Frank Hamilton Cushing, Native American cooking baskets used by the Zuni developed from mesh casings woven to stabilize gourd water vessels. He reported witnessing cooking basket use by Havasupai in 1881, roasting baskets covered with clay would be filled with wood coals and the product to be roasted. When the thus fired clay separated from the basket, it would become a usable clay roasting pan in itself and this indicates a steady progression from use of woven gourd casings to waterproof cooking baskets to pottery. Other than in other cultures, Native Americans used and still use the heat source inside the cookware. Cooking baskets are filled with hot stones and roasting pans with wood coals, Native Americans would form a basket from large leaves to boil water, according to historian and novelist Louis LAmour
3.
Frying
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Frying is the cooking of food in oil or another fat. Chemically, oils and fats are the same, differing only in melting point, foods can be fried in a variety of fats, including lard, vegetable oil, rapeseed oil and olive oil. In commerce, many fats are called oils by custom, e. g. palm oil and coconut oil, a variety of foods may be fried, including the potato chip, bread, eggs and foods made from eggs, such as omelettes or pancakes. Frying is believed to have first appeared in the Ancient Egyptian kitchen, during the Old Kingdom, fats can reach much higher temperatures than water at normal atmospheric pressure. Through frying, one can sear or even carbonize the surface of foods while caramelizing sugars, the food is cooked much more quickly and has a characteristic crispness and texture. Depending on the food, the fat will penetrate it to varying degrees, contributing richness, lubricity, Frying techniques vary in the amount of fat required, the cooking time, the type of cooking vessel required, and the manipulation of the food. Sautéing, stir frying, pan frying, shallow frying, pan frying, sautéing and stir-frying involve cooking foods in a thin layer of fat on a hot surface, such as a frying pan, griddle, wok, or sauteuse. Stir frying involves frying quickly at high temperatures, requiring that the food be stirred continuously to prevent it from adhering to the cooking surface. Shallow frying is a type of pan frying using only enough fat to immerse approximately one-third to one-half of each piece of food, fat used in this technique is typically only used once. Deep-frying, on the hand, involves totally immersing the food in hot oil. Deep-frying is typically a more involved process, and may require specialized oils for optimal results. Deep frying is now the basis of a large and expanding worldwide industry. The end products can then be easily packaged for storage and distribution, examples are potato chips, french fries, nuts, doughnuts, instant noodles, etc. Media related to Frying at Wikimedia Commons
4.
Archaeological Museum of Thessaloniki
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The Archaeological Museum of Thessaloniki is a museum in Thessaloniki, Central Macedonia, Greece. It holds and interprets artifacts from the Archaic, Classical, Hellenistic and Roman periods, mostly from the city of Thessaloniki, the museum is housed in a building designed by architect Patroklos Karantinos and is an example of the modern architectural trends of Greece. Built in 1962, the museum had a new wing added to it in 1980, in which the findings from Vergina were displayed, in 2001 and 2004, in the run-up to the 2004 Athens Olympics, the museum was extensively renovated and its permanent exhibits reorganized. The central rooms hold exhibits from the excavations conducted in Thessaloniki. At present, the collection of Archaic to Late Roman sculptures from Thessaloniki and they illustrate the history of Thessaloniki from prehistoric times to Late Antiquity. Apart from its permanent displays, the Archaeological Museum also hosts major temporary, a showcase in the lobby of the museum displays some finds from the excavation of the Neolithic settlement at Makrygialos in Pieria, accompanied by information about the progress of the excavation. In the new wing, the The Gold of Macedon exhibition includes finds from excavations in Central Macedonia. There are also finds from cemeteries, and their role in burial customs is described. The Thessaloniki in Prehistory exhibition aims to recreate a picture of the Thermaic Gulf littoral before the city of Thessaloniki was built. On 26 February 2010, Greek authorities arrested two men found in possession of various antiquities, including a bronze statue of Alexander. If confirmed, this would make it the first original work of Lysippos ever discovered, the statue is currently being examined at the laboratory of the Archaeological Museum of Thessaloniki, which is expected to confirm or deny its authenticity
5.
Mesopotamia
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In the Iron Age, it was controlled by the Neo-Assyrian and Neo-Babylonian Empires. The Sumerians and Akkadians dominated Mesopotamia from the beginning of history to the fall of Babylon in 539 BC. It fell to Alexander the Great in 332 BC, and after his death, around 150 BC, Mesopotamia was under the control of the Parthian Empire. Mesopotamia became a battleground between the Romans and Parthians, with parts of Mesopotamia coming under ephemeral Roman control. In AD226, eastern part of it fell to the Sassanid Persians, division of Mesopotamia between Roman and Sassanid Empires lasted until the 7th century Muslim conquest of Persia of the Sasanian Empire and Muslim conquest of the Levant from Byzantines. A number of primarily neo-Assyrian and Christian native Mesopotamian states existed between the 1st century BC and 3rd century AD, including Adiabene, Osroene, and Hatra, Mesopotamia is the site of the earliest developments of the Neolithic Revolution from around 10,000 BC. The regional toponym Mesopotamia comes from the ancient Greek root words μέσος middle and ποταμός river and it is used throughout the Greek Septuagint to translate the Hebrew equivalent Naharaim. In the Anabasis, Mesopotamia was used to designate the land east of the Euphrates in north Syria, the Aramaic term biritum/birit narim corresponded to a similar geographical concept. The neighbouring steppes to the west of the Euphrates and the part of the Zagros Mountains are also often included under the wider term Mesopotamia. A further distinction is made between Northern or Upper Mesopotamia and Southern or Lower Mesopotamia. Upper Mesopotamia, also known as the Jazira, is the area between the Euphrates and the Tigris from their sources down to Baghdad, Lower Mesopotamia is the area from Baghdad to the Persian Gulf and includes Kuwait and parts of western Iran. In modern academic usage, the term Mesopotamia often also has a chronological connotation and it is usually used to designate the area until the Muslim conquests, with names like Syria, Jazirah, and Iraq being used to describe the region after that date. It has been argued that these later euphemisms are Eurocentric terms attributed to the region in the midst of various 19th-century Western encroachments, Mesopotamia encompasses the land between the Euphrates and Tigris rivers, both of which have their headwaters in the Armenian Highlands. Both rivers are fed by tributaries, and the entire river system drains a vast mountainous region. Overland routes in Mesopotamia usually follow the Euphrates because the banks of the Tigris are frequently steep and difficult. The climate of the region is semi-arid with a vast desert expanse in the north which gives way to a 15,000 square kilometres region of marshes, lagoons, mud flats, in the extreme south, the Euphrates and the Tigris unite and empty into the Persian Gulf. In the marshlands to the south of the area, a complex water-borne fishing culture has existed since prehistoric times, periodic breakdowns in the cultural system have occurred for a number of reasons. Alternatively, military vulnerability to invasion from marginal hill tribes or nomadic pastoralists has led to periods of trade collapse and these trends have continued to the present day in Iraq
6.
Ancient Greece
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Ancient Greece was a civilization belonging to a period of Greek history from the Greek Dark Ages of the 12th-9th centuries BC to the end of antiquity. Immediately following this period was the beginning of the Early Middle Ages and this was followed by the period of Classical Greece, an era that began with the Greco-Persian Wars, lasting from the 5th to 4th centuries BC. Due to the conquests by Alexander the Great of Macedonia, Hellenistic civilization flourished from Central Asia to the end of the Mediterranean Sea. Classical Greek culture, especially philosophy, had a influence on ancient Rome. For this reason Classical Greece is generally considered to be the culture which provided the foundation of modern Western culture and is considered the cradle of Western civilization. Classical Antiquity in the Mediterranean region is considered to have begun in the 8th century BC. Classical Antiquity in Greece is preceded by the Greek Dark Ages and this period is succeeded, around the 8th century BC, by the Orientalizing Period during which a strong influence of Syro-Hittite, Jewish, Assyrian, Phoenician and Egyptian cultures becomes apparent. The end of the Dark Ages is also dated to 776 BC. The Archaic period gives way to the Classical period around 500 BC, Ancient Periods Astronomical year numbering Dates are approximate, consult particular article for details The history of Greece during Classical Antiquity may be subdivided into five major periods. The earliest of these is the Archaic period, in which artists made larger free-standing sculptures in stiff, the Archaic period is often taken to end with the overthrow of the last tyrant of Athens and the start of Athenian Democracy in 508 BC. It was followed by the Classical period, characterized by a style which was considered by observers to be exemplary, i. e. classical, as shown in the Parthenon. This period saw the Greco-Persian Wars and the Rise of Macedon, following the Classical period was the Hellenistic period, during which Greek culture and power expanded into the Near and Middle East. This period begins with the death of Alexander and ends with the Roman conquest, Herodotus is widely known as the father of history, his Histories are eponymous of the entire field. Herodotus was succeeded by authors such as Thucydides, Xenophon, Demosthenes, Plato, most of these authors were either Athenian or pro-Athenian, which is why far more is known about the history and politics of Athens than those of many other cities. Their scope is limited by a focus on political, military and diplomatic history, ignoring economic. In the 8th century BC, Greece began to emerge from the Dark Ages which followed the fall of the Mycenaean civilization, literacy had been lost and Mycenaean script forgotten, but the Greeks adopted the Phoenician alphabet, modifying it to create the Greek alphabet. The Lelantine War is the earliest documented war of the ancient Greek period and it was fought between the important poleis of Chalcis and Eretria over the fertile Lelantine plain of Euboea. Both cities seem to have suffered a decline as result of the long war, a mercantile class arose in the first half of the 7th century BC, shown by the introduction of coinage in about 680 BC
7.
Ancient Rome
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In its many centuries of existence, the Roman state evolved from a monarchy to a classical republic and then to an increasingly autocratic empire. Through conquest and assimilation, it came to dominate the Mediterranean region and then Western Europe, Asia Minor, North Africa and it is often grouped into classical antiquity together with ancient Greece, and their similar cultures and societies are known as the Greco-Roman world. Ancient Roman civilisation has contributed to modern government, law, politics, engineering, art, literature, architecture, technology, warfare, religion, language and society. Rome professionalised and expanded its military and created a system of government called res publica, the inspiration for modern republics such as the United States and France. By the end of the Republic, Rome had conquered the lands around the Mediterranean and beyond, its domain extended from the Atlantic to Arabia, the Roman Empire emerged with the end of the Republic and the dictatorship of Augustus Caesar. 721 years of Roman-Persian Wars started in 92 BC with their first war against Parthia and it would become the longest conflict in human history, and have major lasting effects and consequences for both empires. Under Trajan, the Empire reached its territorial peak, Republican mores and traditions started to decline during the imperial period, with civil wars becoming a prelude common to the rise of a new emperor. Splinter states, such as the Palmyrene Empire, would divide the Empire during the crisis of the 3rd century. Plagued by internal instability and attacked by various migrating peoples, the part of the empire broke up into independent kingdoms in the 5th century. This splintering is a landmark historians use to divide the ancient period of history from the pre-medieval Dark Ages of Europe. King Numitor was deposed from his throne by his brother, Amulius, while Numitors daughter, Rhea Silvia, because Rhea Silvia was raped and impregnated by Mars, the Roman god of war, the twins were considered half-divine. The new king, Amulius, feared Romulus and Remus would take back the throne, a she-wolf saved and raised them, and when they were old enough, they returned the throne of Alba Longa to Numitor. Romulus became the source of the citys name, in order to attract people to the city, Rome became a sanctuary for the indigent, exiled, and unwanted. This caused a problem for Rome, which had a large workforce but was bereft of women, Romulus traveled to the neighboring towns and tribes and attempted to secure marriage rights, but as Rome was so full of undesirables they all refused. Legend says that the Latins invited the Sabines to a festival and stole their unmarried maidens, leading to the integration of the Latins, after a long time in rough seas, they landed at the banks of the Tiber River. Not long after they landed, the men wanted to take to the sea again, one woman, named Roma, suggested that the women burn the ships out at sea to prevent them from leaving. At first, the men were angry with Roma, but they realized that they were in the ideal place to settle. They named the settlement after the woman who torched their ships, the Roman poet Virgil recounted this legend in his classical epic poem the Aeneid
8.
Old English
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Old English or Anglo-Saxon is the earliest historical form of the English language, spoken in England and southern and eastern Scotland in the early Middle Ages. It was brought to Great Britain by Anglo-Saxon settlers probably in the mid 5th century, Old English developed from a set of Anglo-Frisian or North Sea Germanic dialects originally spoken by Germanic tribes traditionally known as the Angles, Saxons, and Jutes. As the Anglo-Saxons became dominant in England, their language replaced the languages of Roman Britain, Common Brittonic, a Celtic language, Old English had four main dialects, associated with particular Anglo-Saxon kingdoms, Mercian, Northumbrian, Kentish and West Saxon. It was West Saxon that formed the basis for the standard of the later Old English period, although the dominant forms of Middle. The speech of eastern and northern parts of England was subject to strong Old Norse influence due to Scandinavian rule, Old English is one of the West Germanic languages, and its closest relatives are Old Frisian and Old Saxon. Like other old Germanic languages, it is different from Modern English. Old English grammar is similar to that of modern German, nouns, adjectives, pronouns, and verbs have many inflectional endings and forms. The oldest Old English inscriptions were using a runic system. Old English was not static, and its usage covered a period of 700 years, from the Anglo-Saxon settlement of Britain in the 5th century to the late 11th century, some time after the Norman invasion. While indicating that the establishment of dates is a process, Albert Baugh dates Old English from 450 to 1150, a period of full inflections. Perhaps around 85 per cent of Old English words are no longer in use, Old English is a West Germanic language, developing out of Ingvaeonic dialects from the 5th century. It came to be spoken over most of the territory of the Anglo-Saxon kingdoms which became the Kingdom of England and this included most of present-day England, as well as part of what is now southeastern Scotland, which for several centuries belonged to the Anglo-Saxon kingdom of Northumbria. Other parts of the island – Wales and most of Scotland – continued to use Celtic languages, Norse was also widely spoken in the parts of England which fell under Danish law. Anglo-Saxon literacy developed after Christianisation in the late 7th century, the oldest surviving text of Old English literature is Cædmons Hymn, composed between 658 and 680. There is a corpus of runic inscriptions from the 5th to 7th centuries. The Old English Latin alphabet was introduced around the 9th century, with the unification of the Anglo-Saxon kingdoms by Alfred the Great in the later 9th century, the language of government and literature became standardised around the West Saxon dialect. In Old English, typical of the development of literature, poetry arose before prose, a later literary standard, dating from the later 10th century, arose under the influence of Bishop Æthelwold of Winchester, and was followed by such writers as the prolific Ælfric of Eynsham. This form of the language is known as the Winchester standard and it is considered to represent the classical form of Old English
9.
Kitchen stove
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A kitchen stove, usually called a gas range, range, cooker, or oven is a kitchen appliance designed for the purpose of cooking food. Kitchen stoves rely on the application of heat for the cooking process and may also contain an oven. When homes began to be heated with heating systems, there was less need for an appliance that served as both heat source and cooker and stand-alone cookers replaced them. Cooker and stove are often used interchangeably, the fuel-burning stove is the most basic design of kitchen stove. Nearly half of the people in the world, burn biomass, more fuel efficient and environmentally sound biomass cook stoves are being developed for use there. Modern kitchen stoves may use alternative methods for heating food, natural gas and electric stoves are the most common today in western countries. In particular, professional chefs often prefer gas cooktops, for they allow them to control the more finely. On the other hand, some chefs often prefer electric stoves because they tend to heat more evenly. Todays major brands offer both gas and electric stoves, and many also offer dual-fuel stoves combining gas and electric cooktops Modern kitchen stoves have both burners on the top as well as an oven. A cooktop can refer to the top of a stove or burners built into a countertop, many newer cooktops are made of glass-ceramic. A drop-in range a combination unit that installs in a kitchens lower cabinets flush with the countertop. Most modern stoves come in a unit with built-in extractor hoods, early clay stoves that enclosed the fire completely, were known from the Chinese Qin Dynasty, and a similar design known as kamado appeared in the Kofun period in Japan. These stoves were fired by wood or charcoal through a hole in the front, in both designs, pots were placed over or hung into holes at the top of the knee-high construction. Raised kamados were developed in Japan during the Edo period, prior to the 18th century in Europe, people cooked over open fires fueled by wood. In the Middle Ages, waist-high brick-and-mortar hearths and the first chimneys appeared, the fire was built on top of the construction, the cooking done mainly in cauldrons hung above the fire or placed on trivets. The heat was regulated by placing the cauldron higher or lower above the fire, attempts were made to enclose the fire to make better use of the heat that it generated and thus reduce the wood consumption. An early step was the chamber, the fire was enclosed on three sides by brick-and-mortar walls and covered by an iron plate. This technique also caused a change in the used for cooking
10.
Aluminium
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Aluminium or aluminum is a chemical element in the boron group with symbol Al and atomic number 13. It is a silvery-white, soft, nonmagnetic, ductile metal, Aluminium metal is so chemically reactive that native specimens are rare and limited to extreme reducing environments. Instead, it is combined in over 270 different minerals. The chief ore of aluminium is bauxite, Aluminium is remarkable for the metals low density and its ability to resist corrosion through the phenomenon of passivation. Aluminium and its alloys are vital to the industry and important in transportation and structures, such as building facades. The oxides and sulfates are the most useful compounds of aluminium, despite its prevalence in the environment, no known form of life uses aluminium salts metabolically, but aluminium is well tolerated by plants and animals. Because of these salts abundance, the potential for a role for them is of continuing interest. Aluminium is a soft, durable, lightweight, ductile. It is nonmagnetic and does not easily ignite, a fresh film of aluminium serves as a good reflector of visible light and an excellent reflector of medium and far infrared radiation. The yield strength of aluminium is 7–11 MPa, while aluminium alloys have yield strengths ranging from 200 MPa to 600 MPa. Aluminium has about one-third the density and stiffness of steel and it is easily machined, cast, drawn and extruded. Aluminium atoms are arranged in a cubic structure. Aluminium has an energy of approximately 200 mJ/m2. Aluminium is a thermal and electrical conductor, having 59% the conductivity of copper. Aluminium is capable of superconductivity, with a critical temperature of 1.2 kelvin. Aluminium is the most common material for the fabrication of superconducting qubits, the strongest aluminium alloys are less corrosion resistant due to galvanic reactions with alloyed copper. This corrosion resistance is reduced by aqueous salts, particularly in the presence of dissimilar metals. In highly acidic solutions, aluminium reacts with water to form hydrogen, primarily because it is corroded by dissolved chlorides, such as common sodium chloride, household plumbing is never made from aluminium
11.
Sausage
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A sausage is a cylindrical meat product usually made from ground meat, often pork, beef, or veal, along with salt, spices and other flavourings, and breadcrumbs, with a skin around it. Typically, a sausage is formed in a traditionally made from intestine. Sausages that are sold uncooked are usually cooked in many ways, some sausages are cooked during processing and the casing may then be removed. Sausage making is a food preservation technique. Sausages may be preserved by curing, drying, smoking, or freezing, some cured or smoked sausages can be stored without refrigeration. Most fresh sausages must be refrigerated or frozen until they are cooked, there is a huge range of national and regional varieties of sausages, which differ by their flavouring or spicing ingredients, the meat used in them and their manner of preparation. The word sausage was first used in English in the mid-15th century and this word came. from Old North French saussiche. The French word saussiche came. from Vulgar Latin *salsica sausage, from salsicus seasoned with salt, Sausage making is an outcome of efficient butchery. Traditionally, sausage makers would salt various tissues and organs such as scraps, organ meats, blood and they would then stuff them into tubular casings made from the cleaned intestines of the animal, producing the characteristic cylindrical shape. Hence, sausages, puddings, and salami are among the oldest of prepared foods, whether cooked, early humans made the first sausages by stuffing roasted intestines into stomachs. The Greek poet Homer mentioned a kind of sausage in the Odyssey, Epicharmus wrote a comedy titled The Sausage. Evidence suggests that sausages were already popular both among the ancient Greeks and Romans, and most likely with the tribes occupying the larger part of Europe. The most famous sausage in ancient Italy was from Lucania and was called lucanica, during the reign of the Roman emperor Nero, sausages were associated with the Lupercalia festival. Early in the 10th century during the Byzantine Empire, Leo VI the Wise outlawed the production of blood sausages following cases of food poisoning, traditionally, sausage casings were made of the cleaned intestines, or stomachs in the case of haggis and other traditional puddings. Today, however, natural casings are often replaced by collagen, cellulose, or even plastic casings, some forms of sausage, such as sliced sausage, are prepared without a casing. Additionally, luncheon meat and sausage meat are now available without casings in tin cans, a sausage consists of meat, cut into pieces or ground, and filled into a casing, with other ingredients. Ingredients may include a cheap starch filler such as breadcrumbs, seasoning and flavourings such as spices, the meat may be from any animal, but is often pork, beef, or veal. The lean meat-to-fat ratio is dependent upon the style and producer, speciality sausages with other ingredients such as apple and leek are also made
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Media related to Frying pans at Wikimedia Commons