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| ==Etymology== | | ==Etymology== |
| [https://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English] consentrik, from Medieval Latin concentricus, from [[Latin]] com- + centrum [[center]] | | [https://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English] consentrik, from Medieval Latin concentricus, from [[Latin]] com- + centrum [[center]] |
− | *Date: [http://www.wikipedia.org/wiki/14th_Century 14th century] | + | *Date: [https://www.wikipedia.org/wiki/14th_Century 14th century] |
| ==Definitions== | | ==Definitions== |
| *1 : having a common [[center]] <concentric circles> | | *1 : having a common [[center]] <concentric circles> |
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| '''Concentric''' objects [[share]] the same [[center]], [[axis]] or [[origin]] with one inside the other. [[Circles]], tubes, cylindrical shafts, disks, and [[spheres]] may be concentric to one another. Concentric objects do not [[necessarily]] have the same [[radius]]. | | '''Concentric''' objects [[share]] the same [[center]], [[axis]] or [[origin]] with one inside the other. [[Circles]], tubes, cylindrical shafts, disks, and [[spheres]] may be concentric to one another. Concentric objects do not [[necessarily]] have the same [[radius]]. |
| ==Examples of concentric phenomena== | | ==Examples of concentric phenomena== |
− | Concentric cable is a cable type used in [http://en.wikipedia.org/wiki/TN-C-S TN-C-S] [http://en.wikipedia.org/wiki/Ground_(power)#earthing_systems earthing systems] where the combined neutral and [[earth]] core completely surrounds the live core(s). This minimizes the risk of completely cutting through the combined neutral and [[earth]] without first completely cutting through the live cores. | + | Concentric cable is a cable type used in [https://en.wikipedia.org/wiki/TN-C-S TN-C-S] [https://en.wikipedia.org/wiki/Ground_(power)#earthing_systems earthing systems] where the combined neutral and [[earth]] core completely surrounds the live core(s). This minimizes the risk of completely cutting through the combined neutral and [[earth]] without first completely cutting through the live cores. |
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− | [http://en.wikipedia.org/wiki/Muscle_contraction#Concentric_contraction Concentric muscles contractions] are those in which the muscle shortens. | + | [https://en.wikipedia.org/wiki/Muscle_contraction#Concentric_contraction Concentric muscles contractions] are those in which the muscle shortens. |
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| [[Category: General Reference]] | | [[Category: General Reference]] |