Summary

HandWiki is the world's largest wiki-style encyclopedia dedicated to science, technology and computing. It allows you to create and edit articles as long as you have external citations and login account. In addition, this is a content management environment that can be used for collaborative editing of original scholarly content, such as books, manuals, monographs and tutorials.

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Saline
Saline (also known as saline solution) is a mixture of sodium chloride (salt) and water. It has a number of uses in medicine including cleaning wounds, removal and storage of contact lenses, and help with dry eyes. By injection into a vein it is used to treat dehydration such as that from gastroenteritis and diabetic ketoacidosis. Large amounts may result in fluid overload, swelling, acidosis, and high blood sodium. In those with long-standing low blood sodium, excessive use may result in osmotic demyelination syndrome. Saline is in the crystalloid family of medications. It is most commonly used as a sterile 9 g of salt per litre (0.9%) solution, known as normal saline. Higher and lower concentrations may also occasionally be used. Saline is acidic, with a pH of 5.5 (due mainly to dissolved carbon dioxide). The medical use of saline began around 1831. It is on the World Health Organization's List of Essential Medicines. In 2019, sodium was the 226th most commonly prescribed medication in the United States, with more than 2 million prescriptions.
  • 2.2K
  • 13 Oct 2022
Topic Review
Homemade Firearm
Homemade firearms are small improvised firearms built by individuals from kits or other equipment, which are generally excepted from commercial firearms markets or regulations. The phenomenon is most popular in the United States , where it is a political issue for gun control advocates, gun rights advocates, and law enforcement. Homemade guns are in general legal. Homemade guns are generally not subject to federal or state commercial background check regulations.
  • 2.2K
  • 18 Oct 2022
Topic Review
Geosynthetics
Geosynthetics are synthetic products used to stabilize terrain. They are generally polymeric products used to solve civil engineering problems. This includes eight main product categories: geotextiles, geogrids, geonets, geomembranes, geosynthetic clay liners, geofoam, geocells and geocomposites. The polymeric nature of the products makes them suitable for use in the ground where high levels of durability are required. They can also be used in exposed applications. Geosynthetics are available in a wide range of forms and materials. These products have a wide range of applications and are currently used in many civil, geotechnical, transportation, geoenvironmental, hydraulic, and private development applications including roads, airfields, railroads, embankments, retaining structures, reservoirs, canals, dams, erosion control, sediment control, landfill liners, landfill covers, mining, aquaculture and agriculture.
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  • 13 Oct 2022
Topic Review
Twister
Twister is an experimental peer-to-peer microblogging program. It is decentralized, meaning that no one is able to shut it down as there is no single point to attack. The system uses end-to-end encryption to safeguard communications. It is based on both BitTorrent and Bitcoin-like protocols and has been likened to a distributed version of Twitter.
  • 2.3K
  • 13 Oct 2022
Topic Review
Machiavellianism
Machiavellianism is "the employment of cunning and duplicity in statecraft or in general conduct". The word comes from the Italian Renaissance diplomat and writer Niccolò Machiavelli, born in 1469, who wrote Il Principe (The Prince), among other works. In modern psychology, Machiavellianism is one of the dark triad personalities, characterized by a duplicitous interpersonal style, a cynical disregard for morality, and a focus on self-interest and personal gain.
  • 2.2K
  • 13 Oct 2022
Topic Review
Chinese Polearms
The three most common types of Chinese polearms are the ge (戈), qiang (槍), and ji (戟). They are translated into English as dagger-axe, spear, and halberd. Dagger-axes were originally a short slashing weapon with a 0.9 to 1.8 m long shaft, but around the 4th century BC a spearhead was added to the blade, and it became a halberd. The spear is also sometimes called a mao (矛), which is sometimes used to designate polearms with a wavy snake-like spearhead. There was another polearm weapon known as the pi (鈹), translated into English as either sword-staff or long lance, that was used from ancient times until the Han dynasty. It was essentially a short sword attached to a stick. From the Warring States period onward, the length of Chinese polearms varied from around 2.8 m to 5.5 m, however there is no specific designation for a pike in the traditional Chinese lexicon. A very long spear is just called a long spear.
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  • 13 Oct 2022
Topic Review
Cost of Electricity by Source
The distinct methods of electricity generation can incur significantly different costs and these costs can occur at significantly different times relative to when the power is used. Also, calculations of these costs can be made at the point of connection to a load or to the electricity grid (ie they may or may not include the transmission costs). The costs include the initial capital, and the costs of continuous operation, fuel, and maintenance as well as the costs of de-commissioning and remediating any environmental damage. For comparing different methods, it is useful to compare costs per unit of energy which is typically given per kilowatt-hour or megawatt-hour. This type of calculation assists policymakers, researchers and others to guide discussions and decision-making but is usually complicated by the need to take account of differences in timing by means of a discount rate.
  • 16.5K
  • 13 Oct 2022
Topic Review
Anti-miscegenation Laws
Anti-miscegenation laws or miscegenation laws are laws that enforce racial segregation at the level of marriage and intimate relationships by criminalizing interracial marriage and sometimes also sex between members of different races. Anti-miscegenation laws were first introduced in North America from the late seventeenth century onwards by several of the Thirteen Colonies, and subsequently by many US states and US territories and remained in force in many US states until 1967. After the Second World War, an increasing number of states repealed their anti-miscegenation laws. In 1967, in landmark case Loving v. Virginia, the remaining anti-miscegenation laws were held to be unconstitutional by the U.S. Supreme Court under Chief Justice Earl Warren. Similar laws were also enforced in Nazi Germany as part of the Nuremberg laws which were passed in 1935, and in South Africa as part of the system of Apartheid which was passed in 1948. In the United States, interracial marriage, cohabitation and sex have been termed "miscegenation" since the term was coined in 1863. Contemporary usage of the term is infrequent, except to refer to historical laws banning the practice.
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  • 13 Oct 2022
Topic Review
Iranian Subsidy Reform Plan
The economy of Iran includes a lot of subsidies. The Iranian targeted subsidy plan (Persian: طرح هدفمندسازی یارانه‌ها‎), also known as the subsidy reform plan, was passed by the Iranian Parliament in 2010. The government described the subsidy plan as the "biggest surgery" to the nation's economy in half a century and "one of the most important undertakings in Iran's recent economic history". The goal of the subsidy reform plan is to replace subsidies on food and energy (80% of total) with targeted social assistance, in accordance with a Five Year Economic Development Plan and a move towards free market prices in a 5-year period. The subsidy reform plan is the most important part of a broader Iranian economic reform plan. According to the government, approximately $100 billion per year is spent on subsidizing energy prices ($45 billion for the prices of fuel alone) and many consumable goods including bread, sugar, rice, cooking oil and medicine. However, some experts believe direct subsidies are about $30 billion, depending on oil prices. The subsidy system has been inherited from the Iran–Iraq War era but was never abolished. Iran is one of the largest gasoline consumers in the world, ranking second behind the United States in consumption per car. The government subsidy reform has been years in the making, for reasons which are unclear. Iran's Supreme Leader has backed the government’s subsidy reform plan.
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  • 13 Oct 2022
Topic Review
Religion
This is a list of encyclopedias as well as encyclopedic and biographical dictionaries published on the subjects of religion and mythology in any language.
  • 2.3K
  • 13 Oct 2022
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