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2. Tribrach (instrument) - Wikipedia

   en.wikipedia.org/wiki/Tribrach_(instrument)

   The centre of the bottom plate of the tribrach has a 5/8-11 UNC thread bolt hole which is used to attach the tribrach to the tripod. The top plate has three small holes or slots spaced 120˚ apart above leveling thumbscrews, and a locking mechanism which enables a survey instrument or target to be accurately placed on the tribrach and locked in ...

3. Tripod (surveying) - Wikipedia

   en.wikipedia.org/wiki/Tripod_(surveying)

   A surveyor's tripod with a shoulder strap. The head of the tripod supports the instrument while the feet are spiked to anchor the tripod to the ground. A surveyor's tripod is a device used to support any one of a number of surveying instruments , such as theodolites , total stations , levels or transits.

4. Tripod head - Wikipedia

   en.wikipedia.org/wiki/Tripod_head

   Camera mounting systems are used to make attaching and detaching devices to the tripod quicker and easier. Many mounting systems are called "quick-release" systems, and utilize a two-piece mechanism. One piece is a plate that is affixed to the underside of the device, and the other piece is a receiver (normally mounted to the tripod head's head ...

5. iPhone 12 - Wikipedia

   en.wikipedia.org/wiki/IPhone_12

   The iPhone 12 has a 10.78 Wh (2,815 mAh) battery, a slight decrease from the 11.91 Wh (3,110 mAh) battery found in the iPhone 11 and identical to the battery found in the iPhone 12 Pro. The iPhone 12 Mini has a 8.57 Wh (2,227 mAh) battery. Like previous iPhones, the battery is not user-replaceable. [36]

6. List of surveying instruments - Wikipedia

   en.wikipedia.org/wiki/List_of_surveying_instruments

   Instruments used in surveying include: . Alidade; Alidade table; Cosmolabe; Dioptra; Dumpy level; Engineer's chain; Geodimeter; Graphometer; Groma (surveying) Laser ...

7. AOL.com - News, Sports, Weather, Entertainment, Local & Lifestyle

   www.aol.com

   AOL latest headlines, entertainment, sports, articles for business, health and world news.

8. Battery holder - Wikipedia

   en.wikipedia.org/wiki/Battery_holder

   Battery types such as the 9-volt have snap-on contacts. Battery holders for zinc-air batteries must not be completely air-tight since approximately 1 litre of air is required per ampere-hour of discharge per cell. The battery holder may include a valve integrated with the device power switch to allow air to be admitted when the device is ...

9. iPhone hardware - Wikipedia

   en.wikipedia.org/wiki/IPhone_hardware

   The top and side of an iPhone 5S, externally identical to the SE (2016).From left to right, sides: wake/sleep button, silence switch, volume up, and volume down. The touchscreen on the iPhone has increased in size several times over the years, from 3.5 inches on the original iPhone to iPhone 4S, to the current 6.1 and 6.9 inches on the iPhone 16 and 16 Pro Max series. [1]