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Yn.
Yn is a letter of the old Romanian Cyrillic alphabet. YN or Yn may also refer to: * Yeoman (United States Navy), a rank * Yoctonewton, a unit of force equal to 10−24 newtons * Yottanewton, a unit of force equal to 1024 newtons * Triple bond, in a chemical compound * 2C-YN 2C-YN is an analog of phenethylamine that can be synthesized from 2C-I. Very little data exists about the pharmacological properties, metabolism, and toxicity of 2C-YN, although Daniel Trachsel lists it as having a dosage of around 50mg and a d ..., an analogue of the phenethylamine derived hallucinogen 2C-E * Yes–no question * Yunnan, a province of China (Guobiao abbreviation YN) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yeoman (United States Navy)
The yeoman rate is one of the oldest rates in the United States Navy, U.S. Navy, dating back to 1794. Historically, the Navy yeomen were responsible for keeping the storerooms for the ship's gunners, carpenters and boatswains. With the transition from sail to steam, yeomen were assigned to the ship's engineers. In the modern Navy, a yeoman is an enlisted service member who performs Military administration, administrative and Clerk, clerical work. History Formation of the U.S. Navy The United States Constitution, U.S. Constitution (Article I, Section 8, Clause 14) granted the new United States Congress, U.S. Congress the power to build and maintain a navy. It was not until Naval Act of 1794, 1794, when the deteriorating U.S. relations with Great Britain and France, as well as the continuing attacks by Barbary pirates, forced Congress to appropriate funds to construct 6 frigates. Congress stipulated that each ship was to have one Yeoman of the Gun Room and one Captain's Clerk. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yoctonewton
The newton (symbol: N) is the unit of force in the International System of Units (SI). It is defined as 1 kg⋅m/s, the force which gives a mass of 1 kilogram an acceleration of 1 metre per second per second. It is named after Isaac Newton in recognition of his work on classical mechanics, specifically Newton's second law of motion. Definition A newton is defined as 1 kg⋅m/s (it is a derived unit which is defined in terms of the SI base units). One newton is therefore the force needed to accelerate one kilogram of mass at the rate of one metre per second squared in the direction of the applied force. The units "metre per second squared" can be understood as measuring a rate of change in velocity per unit of time, i.e. an increase in velocity by 1 metre per second every second. In 1946, Conférence Générale des Poids et Mesures (CGPM) Resolution 2 standardized the unit of force in the MKS system of units to be the amount needed to accelerate 1 kilogram of mass at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yottanewton
The newton (symbol: N) is the unit of force in the International System of Units (SI). It is defined as 1 kg⋅m/s, the force which gives a mass of 1 kilogram an acceleration of 1 metre per second per second. It is named after Isaac Newton in recognition of his work on classical mechanics, specifically Newton's second law of motion. Definition A newton is defined as 1 kg⋅m/s (it is a derived unit which is defined in terms of the SI base units). One newton is therefore the force needed to accelerate one kilogram of mass at the rate of one metre per second squared in the direction of the applied force. The units "metre per second squared" can be understood as measuring a rate of change in velocity per unit of time, i.e. an increase in velocity by 1 metre per second every second. In 1946, Conférence Générale des Poids et Mesures (CGPM) Resolution 2 standardized the unit of force in the MKS system of units to be the amount needed to accelerate 1 kilogram of mass at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triple Bond
A triple bond in chemistry is a chemical bond between two atoms involving six bonding electrons instead of the usual two in a covalent single bond. Triple bonds are stronger than the equivalent single bonds or double bonds, with a bond order of three. The most common triple bond, that between two carbon atoms, can be found in alkynes. Other functional groups containing a triple bond are cyanides and isocyanides. Some diatomic molecules, such as dinitrogen and carbon monoxide, are also triple bonded. In skeletal formulae the triple bond is drawn as three parallel lines (≡) between the two connected atoms. Bonding The types of bonding can be explained in terms of orbital hybridization. In the case of acetylene each carbon atom has two sp-orbitals and two p-orbitals. The two sp-orbitals are linear with 180° angles and occupy the x-axis ( cartesian coordinate system). The p-orbitals are perpendicular on the y-axis and the z-axis. When the carbon atoms approach each other, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2C-YN
2C-YN is an analog of phenethylamine that can be synthesized from 2C-I. Very little data exists about the pharmacological properties, metabolism, and toxicity of 2C-YN, although Daniel Trachsel lists it as having a dosage of around 50mg and a duration of around 2 hours, with relatively mild psychedelic effects. Legality Canada As of October 31st, 2016; 2C-YN is a controlled substance (Schedule III) in Canada. http://gazette.gc.ca/rp-pr/p2/2016/2016-05-04/html/sor-dors72-eng.php See also * 2C-AL * 2C-E * 2C-cP 2C-CP (2C-cP) is a recreational designer drug from the substituted phenethylamine family, with psychedelic effects. It was first synthesised by Daniel Trachsel and colleagues in 2006. It has a binding affinity (Ki) of 95 nM at the seroton ... * 2C-V References {{Hallucinogenic phenethylamines 2C (psychedelics) Ethynyl compounds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yes–no Question
In linguistics, a yes–no question, also known as a binary question, a polar question, or a general question is a question whose expected answer is one of two choices, one that provides an affirmative answer to the question versus one that provides a negative answer to the question. Typically, in English, the choices are either "yes" or "no". Yes–no questions present an exclusive disjunction, namely a pair of alternatives of which only one is a felicitous answer. In English, such questions can be formed in both positive and negative forms * positive yes/no question: "Will you be here tomorrow?" * negative yes/not question: "Won't you be here tomorrow?" Yes–no questions are in contrast with non-polar wh-questions. The latter are also called content questions, and are formed with the five Ws plus an H ( "who", "what", "where", "when", "why", "how"). Rather than restricting the range of possible answers to two alternatives, content questions are compatible with a broad range ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
