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2. Plug (sanitation) - Wikipedia

   en.wikipedia.org/wiki/Plug_(sanitation)

   A plug in sanitation is an object that is used to close a drainage outlet firmly. The insertion of a plug into a drainage outlet allows the container to be filled with water or other fluids. In contrast to screw on caps, plugs are pushed into the hole and are not put over the hole.

3. Molly (fastener) - Wikipedia

   en.wikipedia.org/wiki/Molly_(fastener)

   Figure 1 of the original patent for the molly bolt, U.S. Patent No. 2,018,251. The molly bolt was patented in 1934 by George Frederick Croessant. [3] Although his patent acknowledges that expandable fasteners of this general kind were already known, Croessant's patent is intended to provide "an improved and adequate anchoring grip that may be retightened if necessary and that will permit ...

4. Caisson lighthouse - Wikipedia

   en.wikipedia.org/wiki/Caisson_lighthouse

   A caisson lighthouse (also referred to as a sparkplug lighthouse, or bug light) is a type of lighthouse whose superstructure rests on a concrete or metal caisson. [1] Caisson lighthouses were developed in the late nineteenth century as a cheaper alternative to screwpile lighthouses. The caisson design was also more efficient as it could better ...

5. List of Super Bowl commercials - Wikipedia

   en.wikipedia.org/wiki/List_of_Super_Bowl_commercials

   A man leads someone through the red-light district of a city. After walking through a door marked "JOBS", he falls down a chute into a desert. Images of Kforce.com at work are then shown. LastMinuteTravel.com "Tornado" Two cowboys set up lawn chairs and watch an incoming tornado.