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Bohr also introduced the quantity , now known as the reduced Planck constant, as the quantum of angular momentum. At first, Bohr thought that this was the angular momentum of each electron in an atom: this proved incorrect and, despite developments by Sommerfeld and others, an accurate description of the electron angular momentum proved beyond the Bohr model. The correct quantization rules for electrons – in which the energy reduces to the Bohr model equation in the case of the hydrogen atom – were given by Heisenberg's matrix mechanics in 1925 and the Schrödinger wave equation in 1926: the reduced Planck constant remains the fundamental quantum of angular momentum. In modern terms, if J is the total angular momentum of a system with rotational invariance, and Jz the angular momentum measured along any given direction, these quantities can only take on the values
Who helped to give the incorrect quantization rules for electrons in 1946?
A: unanswerable

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Aesthetic Group Gymnastics (AGG) was developed from the Finnish "naisvoimistelu". It differs from Rhythmic Gymnastics in that body movement is large and continuous and teams are larger' Athletes do not use apparatus in international AGG competitions compared to Rhythmic Gymnastics where ball, ribbon, hoop and clubs are used on the floor area. The sport requires physical qualities such as flexibility, balance, speed, strength, coordination and sense of rhythm where movements of the body are emphasized through the flow, expression and aesthetic appeal. A good performance is characterized by uniformity and simultaneity. The competition program consists of versatile and varied body movements, such as body waves, swings, balances, pivots, jumps and leaps, dance steps, and lifts. The International Federation of Aesthetic Group Gymnastics (IFAGG) was established in 2003.
What does AGG stand for?
A: Aesthetic Group Gymnastics

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The terms piracy and theft are often associated with copyright infringement. The original meaning of piracy is "robbery or illegal violence at sea", but the term has been in use for centuries as a synonym for acts of copyright infringement. Theft, meanwhile, emphasizes the potential commercial harm of infringement to copyright holders. However, copyright is a type of intellectual property, an area of law distinct from that which covers robbery or theft, offenses related only to tangible property. Not all copyright infringement results in commercial loss, and the U.S. Supreme Court ruled in 1985 that infringement does not easily equate with theft.
What means the same as robbery or illegal violence at sea?
A: piracy

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Even in modern democracies, Freemasonry is sometimes viewed with distrust. In the UK, Masons working in the justice system, such as judges and police officers, were from 1999 to 2009 required to disclose their membership. While a parliamentary inquiry found that there has been no evidence of wrongdoing, it was felt that any potential loyalties Masons might have, based on their vows to support fellow Masons, should be transparent to the public. The policy of requiring a declaration of masonic membership of applicants for judicial office (judges and magistrates) was ended in 2009 by Justice Secretary Jack Straw (who had initiated the requirement in the 1990s). Straw stated that the rule was considered disproportionate, since no impropriety or malpractice had been shown as a result of judges being Freemasons.
Judges and police officers had to disclose their Freemason membership in what years in England?
A:
from 1999 to 2009