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2. Wicket gate - Wikipedia

   en.wikipedia.org/wiki/Wicket_gate

   A wicket gate is also used for a stand-alone gate that provides convenient secondary access, for example to the rear of a walled park or garden. The cricket term "wicket" comes from this usage. [7] "The Wicket Gate" is an important feature in John Bunyan's 17th-century Christian allegory The Pilgrim's Progress. As the first stage of the journey ...

3. Tainter gate - Wikipedia

   en.wikipedia.org/wiki/Tainter_gate

   The Tainter gate is used in water control dams and locks worldwide. The Upper Mississippi River basin alone has 321 Tainter gates, and the Columbia River basin has 195. A Tainter gate is also used to divert the flow of water to San Fernando Power Plant on the Los Angeles Aqueduct. [1] Tainter gate at McAlpine Dam, Ohio River, Louisville, Kentucky

4. Cattle grid - Wikipedia

   en.wikipedia.org/wiki/Cattle_grid

   Grids differed in length from 2.4 to 9.1 metres (7 + 3 ⁄ 4 to 30 ft) and in width from 1.0 to 3.0 metres (40 to 120 in), while the pits beneath grids were 0.0 to 2.5 metres (0 to 98 in) deep. [ 6 ] Cattle grids, as they are called in Great Britain , Ireland , and South Africa , are known by a wide variety of other names in other parts of the ...

5. Rod (unit) - Wikipedia

   en.wikipedia.org/wiki/Rod_(unit)

   The rod, perch, or pole (sometimes also lug) is a surveyor's tool [1] and unit of length of various historical definitions. In British imperial and US customary units, it is defined as 16 + 1 ⁄ 2 feet, equal to exactly 1 ⁄ 320 of a mile, or 5 + 1 ⁄ 2 yards (a quarter of a surveyor's chain), and is exactly 5.0292 meters.

6. I-beam - Wikipedia

   en.wikipedia.org/wiki/I-beam

   Technical terms for similar items include H-beam, I-profile, universal column (UC), w-beam (for "wide flange"), universal beam (UB), rolled steel joist (RSJ), or double-T (especially in Polish, Bulgarian, Spanish, Italian, and German). I-beams are typically made of structural steel and serve a wide variety of construction uses.

7. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!