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  2. Stopper (plug) - Wikipedia

    en.wikipedia.org/wiki/Stopper_(plug)

    For instance, if one were to boil water in a test tube and wanted to collect the water vapor, one could seal the test tube with a stopper with holes in it. With tubing inserted into the hole(s), when the tube is heated, water vapor will rise through the hole, make its way through the tubing, and into the collection chamber of choice.

  3. Peephole - Wikipedia

    en.wikipedia.org/wiki/Peephole

    View through a peephole Barack Obama looking through the Oval Office door peephole Door viewer in the gate of Vaxholm Fortress. A peephole, peekhole, spyhole, doorhole, magic eye, magic mirror or door viewer is a small, round opening through a door from which a viewer on the inside of a dwelling may "peek" to see directly outside the door.

  4. Manhole cover - Wikipedia

    en.wikipedia.org/wiki/Manhole_cover

    The bearing surfaces of manhole frames and covers are machined to assure flatness and prevent them from becoming dislodged by traffic. Round castings are much easier to machine using a lathe. Circular covers do not need to be rotated to align with the manhole. A round manhole cover can be more easily moved by being rolled.

  5. Portable hole - Wikipedia

    en.wikipedia.org/wiki/Portable_hole

    A cartoon character manipulating a portable hole. The 1955 Looney Tunes cartoon, The Hole Idea, presents a fictional account in which Calvin Q. Calculus invents the device. [2] [3]: 317 [4] [5] Another early Looney Tunes example, Beep Prepared from 1961, developed the trope further and features the Road Runner lifting a (previously ordinary) hole off the ground, carrying it, then laying it ...

  6. The Hole Idea - Wikipedia

    en.wikipedia.org/wiki/The_Hole_Idea

    The Hole Idea is a 1955 Warner Bros. Looney Tunes cartoon directed and animated by Robert McKimson with character layout and background layout and paint by Richard H. Thomas. [1] The short was released on April 16, 1955.

  7. The Boy with the Leaking Boot - Wikipedia

    en.wikipedia.org/wiki/The_Boy_with_the_Leaking_Boot

    Statue in Cleethorpes, England. The Boy with the Leaking Boot is a statue showing a young boy, with a bare right foot, holding up his right boot and looking at it. The statue is about 4 feet (1.2 m) tall, and in many cases forms a fountain, with water emerging from the toe of the boot.

  8. Ctenizidae - Wikipedia

    en.wikipedia.org/wiki/Ctenizidae

    Ctenizidae (/ ˈ t ə n ɪ z ə d iː / tə-NIZZ-ə-dee) [2] is a small family of mygalomorph spiders that construct burrows with a cork-like trapdoor made of soil, vegetation, and silk. . They may be called trapdoor spiders, as are other, similar species, such as those of the families Liphistiidae, Barychelidae, and Cyrtaucheniidae, and some species in the Idiopidae and Nemesiid

  9. The Door in the Floor - Wikipedia

    en.wikipedia.org/wiki/The_Door_in_the_Floor

    The Door in the Floor nimbly shifts between melodrama and comedy, with a delightful and perfectly executed excursion into high farce near the end, and it seems perpetually to be discovering new possibilities for its characters . . . Mr.