two times two equals four

  • 51respiration, human — ▪ physiology Introduction       the process by which oxygen is taken up and carbon dioxide discharged. The design of the respiratory system  The human gas exchanging organ, the lung, is located in the thorax, where its delicate tissues are… …

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  • 52Non-invasive intracranial pressure measurement methods — Increased intracranial pressure (ICP) is one of the major causes of secondary brain ischemia that accompanies a variety of pathological conditions, most notably, traumatic brain injury (TBI), stroke, and intracranial hemorrhages. However, aside… …

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  • 53The Idler (1758–1760) — This article is about the 18th century series of essays. For other publications called The Idler, see The Idler (disambiguation). The Idler was a series of 103 essays, all but twelve of them by Samuel Johnson, published in the London weekly the… …

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  • 54Cello — This article is about the stringed musical instrument. For other uses, see Cello (disambiguation). Cello Cello, front and side view String Other names Violoncello Hornbos …

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  • 55Bennett Haselton — is the American founder of Peacefire.org, a U.S. based website dedicated to preserving First Amendment rights for Internet users, particularly those younger than 18, those who work for a business with an internet censorship program, people… …

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  • 56chamber music — music suited for performance in a room or a small concert hall, esp. for two or more, but usually fewer than ten, solo instruments. [1780 90] * * * Music composed for small instrumental ensembles and performed without a conductor. Traditionally… …

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  • 57German reunification — This article is about the 1990 German reunification. For the 1871 German Empire, see Unification of Germany. Map showing the division of East and West Germany, with West Berlin in yellow. German reunification (German: Deutsche Wiedervereinigung) …

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  • 58Antikythera mechanism — The Antikythera mechanism (main fragment) The Antikythera mechanism (  / …

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  • 59Hector Berlioz — Louis Hector Berlioz (December 11, 1803 ndash; March 8, 1869) was a French Romantic composer, best known for his compositions Symphonie fantastique and Grande Messe des morts (Requiem). Berlioz made great contributions to the modern orchestra… …

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  • 60Iowa Hawkeyes — University University of Iowa Conference(s) Big Ten NCAA Division I Athletics director …

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