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2. Stabila - Wikipedia

   en.wikipedia.org/wiki/Stabila

   Stabila Messgeräte Gustav Ullrich GmbH is a company based in Annweiler am Trifels, Rhineland-Palatinate, Germany, that has been manufacturing measuring tools since 1889. [2] It is one of the world's leading companies in the field of spirit levels , folding rules , and electronic measurement technology. [ 3 ]

3. Spirit level - Wikipedia

   en.wikipedia.org/wiki/Spirit_level

   If the bubble housing has graduated divisions, then the sensitivity is the angle or gradient change that moves the bubble by one of these divisions. 2 mm (0.079 in) is the usual spacing for graduations; on a surveyor's level, the bubble will move 2 mm (0.079 in) when the vial is tilted about 0.005 degree.

4. Level (optical instrument) - Wikipedia

   en.wikipedia.org/wiki/Level_(optical_instrument)

   The Y level or wye level is the oldest and bulkiest of the older style optical instruments. A low-powered telescope is placed in a pair of clamp mounts, and the instrument then leveled using a spirit level, which is mounted parallel to the main telescope. The term dumpy level (also builder's level) endures despite the evolution in design. They ...

5. Stadiametric rangefinding - Wikipedia

   en.wikipedia.org/wiki/Stadiametric_rangefinding

   This means that, for a triangle with a given angle, the ratio of opposite side length to adjacent side length (tangent [broken anchor]) is constant. By using a reticle with marks of a known angular spacing, the principle of similar triangles can be used to find either the distance to objects of known size or the size of objects at a known distance.

6. Coincidence rangefinder - Wikipedia

   en.wikipedia.org/wiki/Coincidence_rangefinder

   The position of the lenses A and B are known, and the angle of the lenses α and/or β is set by the operator so that both are aimed at the target. Because the distance between A and B on a coincidence rangefinder is typically fixed, once the angle is set correctly the operator need only read the range from the scale.

7. Tiger Woods and Son Charlie, 15, Continue Annual Tradition ...

   www.aol.com/lifestyle/tiger-woods-son-charlie-15...

   Tiger Woods is back in the game — with his son Charlie by his side!. On Friday, Dec. 20, Woods, 48, and his son Charlie, 15, were snapped hanging out with fellow golfer John Daly and his son ...