 |
at Global Oneness Community.
Share your dreams and let others help you with the interpretation!
Dream Sharing Forum
|
|
inert | A Wisdom Archive on inert | | inert A selection of articles related to inert | |
| We recommend this article: inert - 1, and also this: inert - 2. |
| |
inert, Inert, Inerting system
| | | | Top | Page 4 Page 5 Page 6 Page 7 » Page 8 « More » | |
| |
| ARTICLES RELATED TO inert | | | |  inert: Encyclopedia II - Zeppelin - Cultural influencesThe history of Zeppelins is of particular interest to stamp collectors. From 1909 through 1939, Zeppelins carried mail during their international flights, including covers (envelopes with stamps attached and cancelled) prepared by and for collectors. Many nations issued high-denomination Zeppelin stamps, intended for franking of Zeppelin mail. Among the rarest of Zeppelin covers are those carried during the fateful flight of the Hindenburg; those which survived are invariably charred along the margins, and are worth thousands of dollars. An airshi ...
See also:Zeppelin, Zeppelin - Principal characteristics, Zeppelin - History of the Zeppelin, Zeppelin - Early Zeppelin history, Zeppelin - Zeppelins in World War I, Zeppelin - Zeppelin history after World War I, Zeppelin - Non-German Rigid Airships, Zeppelin - Recent developments, Zeppelin - Cultural influences Read more here: » Zeppelin: Encyclopedia II - Zeppelin - Cultural influences |
| |
| | | | | inert: Encyclopedia II - Nitrogen - Occurrence Nitrogen is the largest single component of the Earth's atmosphere (78.084% by volume, 75.5% by weight) and is acquired for industrial purposes by the fractional distillation of liquid air or by mechanical means of gaseous air (i.e. pressurised reverse osmosis membrane or PSA (Pressure Swing Adsorption). Compounds that contain this element have been observed in outer space. Nitrogen-14 is created as part of the fusion processes in stars. Nitrogen is a large component of animal waste (for example, guano), usually in the form of urea, uric acid, and c ...
See also:Nitrogen, Nitrogen - Notable characteristics, Nitrogen - Applications, Nitrogen - Nitrogen Compounds, Nitrogen - Molecular nitrogen gas and liquid, Nitrogen - History, Nitrogen - Occurrence, Nitrogen - Compounds, Nitrogen - Biological role, Nitrogen - Isotopes, Nitrogen - Precautions Read more here: » Nitrogen: Encyclopedia II - Nitrogen - Occurrence |
| |
| | | | | inert: Encyclopedia II - Ethanol fuel - Ethanol fuels Proposals to use alcohol as a fuel are generally concerned with its use in transportation, chiefly as a total or partial replacement for gasoline in cars and other road vehicles. However, other less conventional approaches have been advanced, such as the use of alcohol in fuel cells, either directly or as a feedstock for hydrogen production.
To have a net energy gain, it is critical that detailed energy and input stock analyses be performed. Although a topic of some debate, some studies suggest a net energy loss in the production of A ...
See also:Ethanol fuel, Ethanol fuel - Ethanol fuels, Ethanol fuel - Production and Distribution, Ethanol fuel - Other alcohols, Ethanol fuel - Ethanol and hydrogen, Ethanol fuel - Alternate sources, Ethanol fuel - Net fuel energy balance, Ethanol fuel - Energy balance in the United States, Ethanol fuel - Arguments and criticisms, Ethanol fuel - Air pollution, Ethanol fuel - Fire safety, Ethanol fuel - Greenhouse gases, Ethanol fuel - Renewable resource, Ethanol fuel - Dependency on foreign oil and international crime, Ethanol fuel - Statism, Ethanol fuel - Cost, Ethanol fuel - Ethanol fuel in Colombia, Ethanol fuel - Ethanol fuel in Brazil, Ethanol fuel - Ethanol fuel in the United States, Ethanol fuel - Ethanol fuel in the Midwest, Ethanol fuel - U.S. National security Read more here: » Ethanol fuel: Encyclopedia II - Ethanol fuel - Ethanol fuels |
| |
| | | | | inert: Encyclopedia II - Chromatography - Ion exchange chromatography Ion exchange chromatography is a column chromatography that uses a charged stationary phase. It is used to separate charged compounds including amino acids, peptides, and proteins. The stationary phase is usually an ion exchange resin that carries charged functional groups which interact with oppositely charged groups of the compound to be retained:
Positively charged ion exchanger (anion exchanger) interacts with anions
Negatively charged ion exch ...
See also:Chromatography, Chromatography - History, Chromatography - Chromatography theory, Chromatography - Retention, Chromatography - Plate theory, Chromatography - Paper chromatography, Chromatography - Thin layer chromatography TLC, Chromatography - Column chromatography, Chromatography - Gas-liquid chromatography, Chromatography - Ion exchange chromatography, Chromatography - Immobilized metal ion affinity chromatography, Chromatography - High performance liquid chromatography HPLC, Chromatography - Normal phase NP liquid chromatography, Chromatography - Reversed phase RP liquid chromatography, Chromatography - Gel permeation chromatography, Chromatography - Affinity chromatography, Chromatography - Countercurrent chromatography Read more here: » Chromatography: Encyclopedia II - Chromatography - Ion exchange chromatography |
| |
| | | | | inert: Encyclopedia II - Plutonium - Compounds Plutonium reacts readily with oxygen, forming PuO and PuO2, as well as intermediate oxides. It reacts with the halides, giving rise to compounds such as PuX3 where X can be F, Cl, Br or I; PuF4 is also seen. The following oxyhalides are observed: PuOCl, PuOBr and PuOI. It will react with carbon to form PuC, nitrogen to form PuN and silicon to form PuSi2.
Plutonium like other actinides readily forms a dioxide plutonyl core (PuO2). In the environment, this plutonyl core readily comp ...
See also:Plutonium, Plutonium - Notable characteristics, Plutonium - Applications, Plutonium - History, Plutonium - Occurrence, Plutonium - Manufacture, Plutonium - Compounds, Plutonium - Allotropes, Plutonium - Isotopes, Plutonium - Precautions Read more here: » Plutonium: Encyclopedia II - Plutonium - Compounds |
| |
| | | | | inert: Encyclopedia II - Plutonium - Applications The isotope 239Pu is a key fissile component in modern nuclear weapons, due to its ease of fissioning and availability. The critical mass for an unreflected sphere of plutonium is 16 kg, but through the use of a neutron reflecting tamper the pit of plutonium in a fission bomb is reduced to 10 kg, which is a sphere with a diameter of 10 cm. Complete detonation of plutonium will produce an explosion of 20 kilotons of TNT per kilogram. (See also Nuclear Weapon Design.)
Plutonium could also be used to manufacture radiological weapons ...
See also:Plutonium, Plutonium - Notable characteristics, Plutonium - Applications, Plutonium - History, Plutonium - Occurrence, Plutonium - Manufacture, Plutonium - Compounds, Plutonium - Allotropes, Plutonium - Isotopes, Plutonium - Precautions Read more here: » Plutonium: Encyclopedia II - Plutonium - Applications |
| |
| | | | | inert: Encyclopedia II - Liquid-liquid extraction - Extraction without chemical change Some solutes such as noble gases can be extracted from one phase to another without the need for a chemical reaction (See Absorption (chemistry)). This is the most simple type of solvent extraction. Some solutes which do not at first sight appear to undergo a reaction during the extraction process do not have distribution ratio which is independent of concentration, a classic example is the extraction of carboxylic acids (HA) into non polar media such as benzene here it is oftein the case that the carboxylic acid will form a dimer in the organic layer so the distribution ratio ...
See also:Liquid-liquid extraction, Liquid-liquid extraction - Distribution ratio, Liquid-liquid extraction - One big batch of solvent or several smaller batchs ?, Liquid-liquid extraction - Separation factors, Liquid-liquid extraction - Decontamination factor, Liquid-liquid extraction - Slopes of graphs, Liquid-liquid extraction - Batchwise single stage extractions, Liquid-liquid extraction - Multistage countercurrent continuous processes, Liquid-liquid extraction - Extraction without chemical change, Liquid-liquid extraction - Extraction with chemical change, Liquid-liquid extraction - Solvation mechanism, Liquid-liquid extraction - Ion exchange mechanism, Liquid-liquid extraction - Ion pair extraction, Liquid-liquid extraction - Kinetics of extraction, Liquid-liquid extraction - Aqueous complexing agents, Liquid-liquid extraction - Industrial process design, Liquid-liquid extraction - Equipment, Liquid-liquid extraction - Terms Read more here: » Liquid-liquid extraction: Encyclopedia II - Liquid-liquid extraction - Extraction without chemical change |
| |
| | | | | inert: Encyclopedia II - Tropical agriculture - Green Revolution The "Green Revolution" is the name given to the most successful agricultural improvement program ever undertaken in the tropics. Funded initially by the Rockefeller Foundation, it aimed to improve corn, rice, and other cereal cultivators –breading plants that would produce more grain for the same amount of effort. From that point it expanded out to improved basic farming practices, particularly for rice farmers. The growth of crop yields was such that agriculture was able to outstrip population growth — per capita production increased ev ...
See also:Tropical agriculture, Tropical agriculture - Green Revolution, Tropical agriculture - Plant propagation, Tropical agriculture - Plant defenses, Tropical agriculture - Slash/mulch, Tropical agriculture - Small-scale irrigation, Tropical agriculture - Water harvesting pits, Tropical agriculture - Bucket drip irrigation, Tropical agriculture - Treadle pumps, Tropical agriculture - Pest control, Tropical agriculture - Crop rotation, Tropical agriculture - Integrated pest management, Tropical agriculture - Major constraints, Tropical agriculture - Acidic soils, Tropical agriculture - Salinization, Tropical agriculture - Day-length sensitive plants, Tropical agriculture - Pioneering crops, Tropical agriculture - Hunger season, Tropical agriculture - Major tropical food crops Read more here: » Tropical agriculture: Encyclopedia II - Tropical agriculture - Green Revolution |
| |
| | | | | inert: Encyclopedia II - Tropical agriculture - Plant defenses A particularly good description of plant defenses can be found at How and why do plants defend themselves? that states in part:
"Plants are faced with a dilemma; while they need to attract beneficial pollinators and seed dispensers, they must also minimize the damage caused by the marauding army of herbivores. Without some form of protection the trees would be stripped bare and smaller plants would be completely devastated, and because plants stand still, they cannot run away. This is as true in Amazonian rainforest as it is i ...
See also:Tropical agriculture, Tropical agriculture - Green Revolution, Tropical agriculture - Plant propagation, Tropical agriculture - Plant defenses, Tropical agriculture - Slash/mulch, Tropical agriculture - Small-scale irrigation, Tropical agriculture - Water harvesting pits, Tropical agriculture - Bucket drip irrigation, Tropical agriculture - Treadle pumps, Tropical agriculture - Pest control, Tropical agriculture - Crop rotation, Tropical agriculture - Integrated pest management, Tropical agriculture - Major constraints, Tropical agriculture - Acidic soils, Tropical agriculture - Salinization, Tropical agriculture - Day-length sensitive plants, Tropical agriculture - Pioneering crops, Tropical agriculture - Hunger season, Tropical agriculture - Major tropical food crops Read more here: » Tropical agriculture: Encyclopedia II - Tropical agriculture - Plant defenses |
| |
| | | | | inert: Encyclopedia II - Tropical agriculture - Hunger season The hunger season is that period of time when all the food from the previous harvest has been consumed, and the next harvest is still some time away. Even in normal years, many households face an annual reduction in the amount of food they have available. Typically the hunger season will coincide with the start of planting the new crop, or shortly thereafter. So farmers are faced with a shortage of food at the very t ...
See also:Tropical agriculture, Tropical agriculture - Green Revolution, Tropical agriculture - Plant propagation, Tropical agriculture - Plant defenses, Tropical agriculture - Slash/mulch, Tropical agriculture - Small-scale irrigation, Tropical agriculture - Water harvesting pits, Tropical agriculture - Bucket drip irrigation, Tropical agriculture - Treadle pumps, Tropical agriculture - Pest control, Tropical agriculture - Crop rotation, Tropical agriculture - Integrated pest management, Tropical agriculture - Major constraints, Tropical agriculture - Acidic soils, Tropical agriculture - Salinization, Tropical agriculture - Day-length sensitive plants, Tropical agriculture - Pioneering crops, Tropical agriculture - Hunger season, Tropical agriculture - Major tropical food crops Read more here: » Tropical agriculture: Encyclopedia II - Tropical agriculture - Hunger season |
| |
| | | | | inert: Encyclopedia II - Tropical agriculture - Major constraints
Winters are mild in the tropics; there is no frost, no snow, and no ice, so the insect population flourishes year-round. In temperate areas winter eliminates most insect pests prior to the emergence of new crops, so plants coming up in the spring have a chance to take hold and grow prior to being attacked. In the tropics plants enter a world already full of hungry adult insects.
Tropical agriculture - Acidic soils.
Soils in the humid tropics are normally highly acidic and nutrient poor; decompositi ...
See also:Tropical agriculture, Tropical agriculture - Green Revolution, Tropical agriculture - Plant propagation, Tropical agriculture - Plant defenses, Tropical agriculture - Slash/mulch, Tropical agriculture - Small-scale irrigation, Tropical agriculture - Water harvesting pits, Tropical agriculture - Bucket drip irrigation, Tropical agriculture - Treadle pumps, Tropical agriculture - Pest control, Tropical agriculture - Crop rotation, Tropical agriculture - Integrated pest management, Tropical agriculture - Major constraints, Tropical agriculture - Acidic soils, Tropical agriculture - Salinization, Tropical agriculture - Day-length sensitive plants, Tropical agriculture - Pioneering crops, Tropical agriculture - Hunger season, Tropical agriculture - Major tropical food crops Read more here: » Tropical agriculture: Encyclopedia II - Tropical agriculture - Major constraints |
| |
| | | | | inert: Encyclopedia II - Tropical agriculture - Pest control
Tropical agriculture - Crop rotation.
Crop rotation is the cornerstone pest control in the tropics. When a single crop is planted repeatedly in the same soil, insects and diseases that attack that crop are allowed to build up to unmanageable levels, greatly reducing the farmer’s harvest.
The most basic form of crop rotation is also the simplest: never plant the same thing in the same place twice. This results in naturally breaking the cycles of weeds, insects and diseases that attack food crops. Rotation ...
See also:Tropical agriculture, Tropical agriculture - Green Revolution, Tropical agriculture - Plant propagation, Tropical agriculture - Plant defenses, Tropical agriculture - Slash/mulch, Tropical agriculture - Small-scale irrigation, Tropical agriculture - Water harvesting pits, Tropical agriculture - Bucket drip irrigation, Tropical agriculture - Treadle pumps, Tropical agriculture - Pest control, Tropical agriculture - Crop rotation, Tropical agriculture - Integrated pest management, Tropical agriculture - Major constraints, Tropical agriculture - Acidic soils, Tropical agriculture - Salinization, Tropical agriculture - Day-length sensitive plants, Tropical agriculture - Pioneering crops, Tropical agriculture - Hunger season, Tropical agriculture - Major tropical food crops Read more here: » Tropical agriculture: Encyclopedia II - Tropical agriculture - Pest control |
| |
| | | | | inert: Encyclopedia II - Tropical agriculture - Slash/mulch The contents of a bag of commercial fertilizer is described in terms of NPK -nitrogen (N), phosphorus (P) and potassium (K); with nitrogen being the main component of most commercial fertilizers.
Oxygen is only a small part of the air; the largest component of air is nitrogen. Nitrogen is the main building block of protein; muscle in mammals and plant tissue in plants. If you increase the nitrogen in the soil, you significantly increase plant growth. Legumes are a group of plants that interact with bacteria (rhizobia) in the soil to f ...
See also:Tropical agriculture, Tropical agriculture - Green Revolution, Tropical agriculture - Plant propagation, Tropical agriculture - Plant defenses, Tropical agriculture - Slash/mulch, Tropical agriculture - Small-scale irrigation, Tropical agriculture - Water harvesting pits, Tropical agriculture - Bucket drip irrigation, Tropical agriculture - Treadle pumps, Tropical agriculture - Pest control, Tropical agriculture - Crop rotation, Tropical agriculture - Integrated pest management, Tropical agriculture - Major constraints, Tropical agriculture - Acidic soils, Tropical agriculture - Salinization, Tropical agriculture - Day-length sensitive plants, Tropical agriculture - Pioneering crops, Tropical agriculture - Hunger season, Tropical agriculture - Major tropical food crops Read more here: » Tropical agriculture: Encyclopedia II - Tropical agriculture - Slash/mulch |
| |
| | | | | inert: Encyclopedia II - Liquid-liquid extraction - Multistage countercurrent continuous processes These are commonly used in industry for the processing of metals such as the lanthanides, because the separation factors between the lanthanides are so small many extraction stages are needed. In the multistage processes the aqueous raffinate from one extraction unit is feed as the next unit as the aqueous feed. While the organic phase is moved in the opposite direction. Hence in this way even if the separation between two ...
See also:Liquid-liquid extraction, Liquid-liquid extraction - Distribution ratio, Liquid-liquid extraction - One big batch of solvent or several smaller batchs ?, Liquid-liquid extraction - Separation factors, Liquid-liquid extraction - Decontamination factor, Liquid-liquid extraction - Slopes of graphs, Liquid-liquid extraction - Batchwise single stage extractions, Liquid-liquid extraction - Multistage countercurrent continuous processes, Liquid-liquid extraction - Extraction without chemical change, Liquid-liquid extraction - Extraction with chemical change, Liquid-liquid extraction - Solvation mechanism, Liquid-liquid extraction - Ion exchange mechanism, Liquid-liquid extraction - Ion pair extraction, Liquid-liquid extraction - Kinetics of extraction, Liquid-liquid extraction - Aqueous complexing agents, Liquid-liquid extraction - Industrial process design, Liquid-liquid extraction - Equipment, Liquid-liquid extraction - Terms Read more here: » Liquid-liquid extraction: Encyclopedia II - Liquid-liquid extraction - Multistage countercurrent continuous processes |
| |
| | | | | inert: Encyclopedia II - Liquid-liquid extraction - Distribution ratio In solvent extraction a distribution ratio is oftein quoted as a measure of how well extracted a species is. The distribution ratio (D) is equal to the concentration of a solute in the organic phase divided by its concentration in the aqueous phase. Depending on the system the distribution ratio can be a function of temperature, the concentration of chemical species in the system and a large number of other parameters.
...
See also:Liquid-liquid extraction, Liquid-liquid extraction - Distribution ratio, Liquid-liquid extraction - One big batch of solvent or several smaller batchs ?, Liquid-liquid extraction - Separation factors, Liquid-liquid extraction - Decontamination factor, Liquid-liquid extraction - Slopes of graphs, Liquid-liquid extraction - Batchwise single stage extractions, Liquid-liquid extraction - Multistage countercurrent continuous processes, Liquid-liquid extraction - Extraction without chemical change, Liquid-liquid extraction - Extraction with chemical change, Liquid-liquid extraction - Solvation mechanism, Liquid-liquid extraction - Ion exchange mechanism, Liquid-liquid extraction - Ion pair extraction, Liquid-liquid extraction - Kinetics of extraction, Liquid-liquid extraction - Aqueous complexing agents, Liquid-liquid extraction - Industrial process design, Liquid-liquid extraction - Equipment, Liquid-liquid extraction - Terms Read more here: » Liquid-liquid extraction: Encyclopedia II - Liquid-liquid extraction - Distribution ratio |
| |
| | | | | inert: Encyclopedia II - Glass - Properties and Uses One of the most obvious characteristics of ordinary glass is that it is transparent to visible light (not all glassy materials are). The transparency is due to an absence of electronic transition states in the range of visible light, and to the fact that such glass is homogeneous on all length scales greater than about a wavelength of visible light (inhomogeneities cause light to be scattered, breaking up any coherent image transmission). Ordinary glass does not allow light at a wavelength of lower than 400 nm, also known as ultraviolet light or UV, to pass. This is due to the addition of c ...
See also:Glass, Glass - Properties and Uses, Glass - Glass Ingredients, Glass - Glass as a polymer, Glass - Colors, Glass - History of glass, Glass - Glass tools, Glass - Glass art, Glass - Architectural glass, Glass - Float annealed glass, Glass - Sheet glass, Glass - Plate glass, Glass - Cylinder glass, Glass - Insulated glazing, Glass - Toughened glass, Glass - Laminated glass, Glass - Low-emissivity glass, Glass - Self-cleaning glass, Glass - Evacuated glazing, Glass - Glass as a liquid Read more here: » Glass: Encyclopedia II - Glass - Properties and Uses |
| |
| | | | | inert: Encyclopedia II - Ethanol fuel - Ethanol fuel in the United States
Ethanol fuel - Ethanol fuel in the Midwest.
The so-called corn-belt in the Midwestern United States produces large amounts of corn. Sugars from this corn can be and are used to make ethanol. Minnesota has pioneered the use of ethanol fuel mixes in the United States, and currently all gasoline mixes must have 10% ethanol (90% gasoline) by volume. There are almost 200 gas stations in Minnesota that serve E85, which is a fuel mix of 85% ethanol and 15% gasoline.[12] In the US, there is ov ...
See also:Ethanol fuel, Ethanol fuel - Ethanol fuels, Ethanol fuel - Production and Distribution, Ethanol fuel - Other alcohols, Ethanol fuel - Ethanol and hydrogen, Ethanol fuel - Alternate sources, Ethanol fuel - Net fuel energy balance, Ethanol fuel - Energy balance in the United States, Ethanol fuel - Arguments and criticisms, Ethanol fuel - Air pollution, Ethanol fuel - Fire safety, Ethanol fuel - Greenhouse gases, Ethanol fuel - Renewable resource, Ethanol fuel - Dependency on foreign oil and international crime, Ethanol fuel - Statism, Ethanol fuel - Cost, Ethanol fuel - Ethanol fuel in Colombia, Ethanol fuel - Ethanol fuel in Brazil, Ethanol fuel - Ethanol fuel in the United States, Ethanol fuel - Ethanol fuel in the Midwest, Ethanol fuel - U.S. National security Read more here: » Ethanol fuel: Encyclopedia II - Ethanol fuel - Ethanol fuel in the United States |
| |
| | | | | inert: Encyclopedia II - Ethanol fuel - Other alcohols Although not as common as ethanol, other fuel alcohols have been considered, notably methanol, butanol, and propanol. These alcohols are toxic, although the latter two are considerably less toxic than methanol, and considerably less volatile. In particular, butanol has a high flashpoint of 35 °C, which is a benefit for fire safety, but a difficulty for starting engines, particularly in cold weather. (In comparison, ethanol has a fla ...
See also:Ethanol fuel, Ethanol fuel - Ethanol fuels, Ethanol fuel - Production and Distribution, Ethanol fuel - Other alcohols, Ethanol fuel - Ethanol and hydrogen, Ethanol fuel - Alternate sources, Ethanol fuel - Net fuel energy balance, Ethanol fuel - Energy balance in the United States, Ethanol fuel - Arguments and criticisms, Ethanol fuel - Air pollution, Ethanol fuel - Fire safety, Ethanol fuel - Greenhouse gases, Ethanol fuel - Renewable resource, Ethanol fuel - Dependency on foreign oil and international crime, Ethanol fuel - Statism, Ethanol fuel - Cost, Ethanol fuel - Ethanol fuel in Colombia, Ethanol fuel - Ethanol fuel in Brazil, Ethanol fuel - Ethanol fuel in the United States, Ethanol fuel - Ethanol fuel in the Midwest, Ethanol fuel - U.S. National security Read more here: » Ethanol fuel: Encyclopedia II - Ethanol fuel - Other alcohols |
| |
| | | | | inert: Encyclopedia II - Gas tungsten arc welding - Process variations
Gas tungsten arc welding - Pulsed-current.
In the pulsed-current mode, the welding current rapidly alternates between two levels. The higher current state is known as the pulse current, while the lower current level is called the background current. During the period of pulse current, the weld area is heated and fusion occurs. Upon dropping to the background current, the weld area is allowed to cool and solidify. Pulsed-current GTAW has a number of advantages, including lower heat input and consequently a reducti ...
See also:Gas tungsten arc welding, Gas tungsten arc welding - Development, Gas tungsten arc welding - Operation, Gas tungsten arc welding - Safety, Gas tungsten arc welding - Applications, Gas tungsten arc welding - Quality, Gas tungsten arc welding - Equipment, Gas tungsten arc welding - Welding torch, Gas tungsten arc welding - Power supply, Gas tungsten arc welding - Electrode, Gas tungsten arc welding - Shielding gas, Gas tungsten arc welding - Materials, Gas tungsten arc welding - Aluminum and magnesium, Gas tungsten arc welding - Steels, Gas tungsten arc welding - Dissimilar metals, Gas tungsten arc welding - Process variations, Gas tungsten arc welding - Pulsed-current, Gas tungsten arc welding - Dabber, Gas tungsten arc welding - Notes Read more here: » Gas tungsten arc welding: Encyclopedia II - Gas tungsten arc welding - Process variations |
| |
| | | | | inert: Encyclopedia II - Glass - Glass Ingredients Pure silica (SiO2) has a melting point of about 2000 °C (3600 °F), and while it can be made into glass for special applications (see fused quartz), two other substances are always added to common glass to simplify processing. One is soda (sodium carbonate Na2CO3), or potash, the equivalent potassium compound, which lowers the melting point to about 1000 °C (1800 °F). However, the soda makes the glass water-soluble, which is obviously undesirable, so lime (calcium oxide, CaO) is the third component, added ...
See also:Glass, Glass - Properties and Uses, Glass - Glass Ingredients, Glass - Glass as a polymer, Glass - Colors, Glass - History of glass, Glass - Glass tools, Glass - Glass art, Glass - Architectural glass, Glass - Float annealed glass, Glass - Sheet glass, Glass - Plate glass, Glass - Cylinder glass, Glass - Insulated glazing, Glass - Toughened glass, Glass - Laminated glass, Glass - Low-emissivity glass, Glass - Self-cleaning glass, Glass - Evacuated glazing, Glass - Glass as a liquid Read more here: » Glass: Encyclopedia II - Glass - Glass Ingredients |
| |
| | | | | inert: Encyclopedia II - Glass - History of glass Naturally occurring glass, such as obsidian, has been used since the stone age. The first documented instructions for glass making is in Egypt around 1500 BC, when glass was used as a glaze for pottery and other items. In the first century BC the technique of blowing glass was developed and what had once been an extremely rare and valuable item became much more common. During the Roman Empire many forms of glass were created, usually for vases and bottles. Glass was made from sand, plant ash and lime. The earliest use of glass was as a color ...
See also:Glass, Glass - Properties and Uses, Glass - Glass Ingredients, Glass - Glass as a polymer, Glass - Colors, Glass - History of glass, Glass - Glass tools, Glass - Glass art, Glass - Architectural glass, Glass - Float annealed glass, Glass - Sheet glass, Glass - Plate glass, Glass - Cylinder glass, Glass - Insulated glazing, Glass - Toughened glass, Glass - Laminated glass, Glass - Low-emissivity glass, Glass - Self-cleaning glass, Glass - Evacuated glazing, Glass - Glass as a liquid Read more here: » Glass: Encyclopedia II - Glass - History of glass |
| |
| | | | | inert: Encyclopedia II - Zeppelin - Principal characteristics The most important feature of Zeppelin's design is a rigid aluminium alloy skeleton, made of rings and longitudinal girders. The advantage of this concept is that the ships can be built much larger, which enables them to lift heavier loads and be equipped with more numerous and powerful engines. This makes the craft quite distinct from non-rigid airships commonly known as blimps, which rely on a slight overpres ...
See also:Zeppelin, Zeppelin - Principal characteristics, Zeppelin - History of the Zeppelin, Zeppelin - Early Zeppelin history, Zeppelin - Zeppelins in World War I, Zeppelin - Zeppelin history after World War I, Zeppelin - Non-German Rigid Airships, Zeppelin - Recent developments, Zeppelin - Cultural influences Read more here: » Zeppelin: Encyclopedia II - Zeppelin - Principal characteristics |
| |
| | | | Top | Page 4 Page 5 Page 6 Page 7 » Page 8 « More » | |
| |
|
|
Search the Global Oneness web site |
|
|
|
