SAGE Reference - Encyclopedia of Time: Science, Philosophy, Theology, & Culture

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Hourglass

In: Encyclopedia of Time: Science, Philosophy, Theology, & Culture
Edited by: H. James Birx
Subject:Time Studies
Keywords:reservoirs

The hourglass, also known as the sandglass, is a timekeeping instrument that has been used for centuries. The sandglass is constructed using two conic reservoirs that are joined at their apexes by a small hole. One reservoir is filled with a ...

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  Birx, H. J. (2009). Hourglass. In Encyclopedia of time: Science, philosophy, theology, & culture (Vol. 1, pp. 678-679). SAGE Publications, Inc., https://dx.doi.org/10.4135/9781412963961.n271
  
  Birx, H. J. "Hourglass." In Encyclopedia of Time: Science, Philosophy, Theology, & Culture, edited by Birx, H. James., 678-79. Thousand Oaks, CA: SAGE Publications, Inc., 2009. https://dx.doi.org/10.4135/9781412963961.n271.
  
  Birx, H. J. 2009. Hourglass. In: H. J. Birx Editor, 2009. Encyclopedia of Time: Science, Philosophy, Theology, & Culture, Thousand Oaks, CA: SAGE Publications, Inc. pp. 678-679 Available at: <https://dx.doi.org/10.4135/9781412963961.n271> [Accessed 23 May 2022].
  
  Birx, H. J. "Hourglass." Encyclopedia of Time: Science, Philosophy, Theology, & Culture. Edited by Vol. 1. Thousand Oaks: SAGE Publications, Inc., 2009, pp. 678-79. SAGE Knowledge. 23 May 2022, doi: https://dx.doi.org/10.4135/9781412963961.n271.
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