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Classical statistical mechanics requires the existence of h (but does not define its value). Eventually, following upon Planck's discovery, it was recognized that physical action cannot take on an arbitrary value. Instead, it must be some multiple of a very small quantity, the "quantum of action", now called the Planck constant. Classical physics cannot explain this fact. In many cases, such as for monochromatic light or for atoms, this quantum of action also implies that only certain energy levels are allowed, and values in between are forbidden.
What is the Planck constant formerly known as?
A: quantum of action

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Attempts are frequently made to regulate emotion according to the conventions of the society and the situation based on many (sometimes conflicting) demands and expectations which originate from various entities. The emotion of anger is in many cultures discouraged in girls and women, while fear is discouraged in boys and men. Expectations attached to social roles, such as "acting as man" and not as a woman, and the accompanying "feeling rules" contribute to the differences in expression of certain emotions. Some cultures encourage or discourage happiness, sadness, or jealousy, and the free expression of the emotion of disgust is considered socially unacceptable in most cultures. Some social institutions are seen as based on certain emotion, such as love in the case of contemporary institution of marriage. In advertising, such as health campaigns and political messages, emotional appeals are commonly found. Recent examples include no-smoking health campaigns and political campaigns emphasizing the fear of terrorism.
What social institution is associated with the emotion of love?
A: marriage

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Notable Old Etonians in the media include the former Political Editor of both ITN and The Times, Julian Haviland; the current BBC Deputy Political Editor, James Landale, and the BBC Science Editor, David Shukman; the current President of Conde Nast International and Managing Director of Conde Nast UK, Nicholas Coleridge; the former ITN newscaster and BBC Panorama presenter, Ludovic Kennedy; current BBC World News and BBC Rough Justice current affairs presenter David Jessel; former chief ITV and Channel 4 racing commentator John Oaksey; 1950s BBC newsreader and 1960s ITN newscaster Timothy Brinton; 1960s BBC newsreader Corbet Woodall; the former Editor of The Daily Telegraph, Charles Moore; the former Editor of The Spectator, Ferdinand Mount; and the current Editor of The Mail on Sunday, Geordie Greig.
In what decade did David Shukam attend Eton?
A: unanswerable

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The city proper is home to less than one-thirteenth of the population of South Florida. Miami is the 42nd-most populous city in the United States. The Miami metropolitan area, which includes Miami-Dade, Broward and Palm Beach counties, had a combined population of more than 5.5 million people, ranked seventh largest in the United States, and is the largest metropolitan area in the Southeastern United States. As of 2008[update], the United Nations estimates that the Miami Urban Agglomeration is the 44th-largest in the world.
Along with Palm Beach and Miami-Dade, what county is part of the Miami-Dade metropolitan area?
A:
Broward