Sagitta Rule: Difference between revisions
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(Created page with "Category:Right of Way Category:Definitions thumb|right|300px|Visualization of the sagitta [https://en.wikipedia.org/wiki/Sagitta_(geometry) From...") |
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[[Category:Right of Way]] | [[Category:Right of Way]] | ||
[[Category:Definitions]] | [[Category:Definitions]] | ||
[[File:Sagitta.svg|thumb|right|300px|Visualization of the sagitta]] | [[File:Sagitta.svg|thumb|right|300px|Visualization of the sagitta. The red line marked with <i>s</i> is the sagitta of the arc.]] | ||
[https://en.wikipedia.org/wiki/Sagitta_(geometry) From <i>Wikipedia</i>]: | [https://en.wikipedia.org/wiki/Sagitta_(geometry) From <i>Wikipedia</i>]: | ||
: In geometry, the [[Sagitta Rule|sagitta] of a circular arc is the distance from the center of the arc to the center of its base. It is used extensively in architecture when calculating the arc necessary to span a certain height and distance. | : In geometry, the [[Sagitta Rule|sagitta]] of a circular arc is the distance from the center of the arc to the center of its base. It is used extensively in architecture when calculating the arc necessary to span a certain height and distance. | ||
In Live Steam a [[Sagitta Rule]] is used to directly measure the radius of a curved section of track. | In Live Steam a [[Sagitta Rule]] is used to directly measure the radius of a curved section of track. | ||
Revision as of 15:45, 1 December 2020
- In geometry, the sagitta of a circular arc is the distance from the center of the arc to the center of its base. It is used extensively in architecture when calculating the arc necessary to span a certain height and distance.
In Live Steam a Sagitta Rule is used to directly measure the radius of a curved section of track.