File:Estimating height.png
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Summary
| Description | Diagram showing how to estimate the height of an object. Hold a ruler so that its "zero" mark is in the line of sight (A) of the base of the object to be measured. Move the ruler towards or away from your eye until line B crosses the "1" mark on the ruler and lines up with a known height on the object. Without moving the ruler, glance up and note the measurement where the line of sight (C) to the top of the object crosses the ruler. Multiply this measurement by the known height to get the height of the object. |
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| Source | self-made using OpenOffice.org's sdraw program. |
| Author | Jomegat |
Licensing
I, Jomegat, the copyright holder of this work, hereby publishes it under the following licenses:
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
  
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This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | |
| Attribution: I, Jomegat | ||
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| This licensing tag was added to this file as part of the GFDL licensing update. |
This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic, 2.0 Generic and 1.0 Generic license.
Attribution: I, Jomegat
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:09, 4 July 2007 | | 565 × 352 (79 KB) | Jomegat | {{Information |Description=Diagram showing how to estimate the height of an object. Hold a ruler so that its "zero" mark is in the line of sight of the base of the object to be measured. Move the ruler towards or away from your eye until the "1" mark li |
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