GORA VOLUMUL 2

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Cardarelli, François (6 Dec 2012). Scientific Unit Conversion: A Practical Guide to Metrication (2nded.). London: Springer Science+Business Media. p.151. ISBN 978-1-4471-0805-4. OCLC 828776235. Marion, Jerry B. (1982). Physics For Science and Engineering. CBS College Publishing. p.3. ISBN 978-4-8337-0098-6. In ancient times, volume was measured using similar-shaped natural containers. Later on, standardized containers were used. Some simple three-dimensional shapes can have their volume easily calculated using arithmetic formulas. Volumes of more complicated shapes can be calculated with integral calculus if a formula exists for the shape's boundary. Zero-, one- and two-dimensional objects have no volume; in fourth and higher dimensions, an analogous concept to the normal volume is the hypervolume. By metonymy, the term "volume" sometimes is used to refer to the corresponding region (e.g., bounding volume). [2] [3] Există o serie de formule pentru calculul volumului diferitelor obiecte tridimensionale. Iată câteva dintre cele mai frecvente:

Let Q be a set enclosed between two step regions S and T. A step region is formed from a finite union of adjacent cuboid resting on a common surface, i.e. S ⊆ Q ⊆ T. If there is a unique number c such that a( S) ≤ c ≤ a( T) for all such step regions S and T, then a( Q) = c. Graf, E. H. (2004). "Just what did Archimedes say about buoyancy?". The Physics Teacher. 42 (5): 296–299. Bibcode: 2004PhTea..42..296G. doi: 10.1119/1.1737965. Archived from the original on 2021-04-14 . Retrieved 2022-08-07. Stewart, James (2008). Calculus: Early Transcendentals (6thed.). Brooks Cole Cengage Learning. ISBN 978-0-495-01166-8. Lemons, Don S. (16 March 2017). A Student's Guide to Dimensional Analysis. New York: Cambridge University Press. p.38. ISBN 978-1-107-16115-3. OCLC 959922612.

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a b c "SI Units - Volume". National Institute of Standards and Technology. April 13, 2022. Archived from the original on August 7, 2022 . Retrieved August 7, 2022. IEC 60050 — Details for IEV number 102-04-39: "three-dimensional domain" ". International Electrotechnical Vocabulary (in Japanese) . Retrieved 2023-09-19. Commonly used prefixes for cubed length units are the cubic millimetre (mm 3), cubic centimetre (cm 3), cubic decimetre (dm 3), cubic metre (m 3) and the cubic kilometre (km 3). The conversion between the prefix units are as follows: 1000mm 3 = 1cm 3, 1000cm 3 = 1dm 3, and 1000dm 3 = 1m 3. [1] The metric system also includes the litre (L) as a unit of volume, where 1 L = 1dm 3 = 1000cm 3 = 0.001m 3. [17] :145 For the litre unit, the commonly used prefixes are the millilitre (mL), centilitre (cL), and the litre (L), with 1000mL = 1L, 10mL = 1cL, 10cL = 1dL, and 10dL = 1L. [1] The oldest way to roughly measure a volume of an object is using the human body, such as using hand size and pinches. However, the human body's variations make it extremely unreliable. A better way to measure volume is to use roughly consistent and durable containers found in nature, such as gourds, sheep or pig stomachs, and bladders. Later on, as metallurgy and glass production improved, small volumes nowadays are usually measured using standardized human-made containers. [5] :393 This method is common for measuring small volume of fluids or granular materials, by using a multiple or fraction of the container. For granular materials, the container is shaken or leveled off to form a roughly flat surface. This method is not the most accurate way to measure volume but is often used to measure cooking ingredients. [5] :399

History [ edit ] Ancient history [ edit ] 6volumetric measures from the mens ponderia in Pompeii, an ancient municipal institution for the control of weights and measures

a b "Balances, Weights and Measures" (PDF). Royal Pharmaceutical Society. 4 Feb 2020. p.1. Archived (PDF) from the original on 20 May 2022 . Retrieved 13 August 2022. Cook, James L. (1991). Conversion Factors. Oxford [England]: Oxford University Press. pp.xvi. ISBN 0-19-856349-3. OCLC 22861139.