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  2. Wooden horse (device) - Wikipedia

    en.wikipedia.org/wiki/Wooden_horse_(device)

    Cavalletto at the Inquisitor's Palace, in Birgu. A wooden horse, Chevalet (as it was called in Spain), Spanish donkey or cavalletto squarciapalle is a torture device, of which there exist two variations; both inflict pain by using the subject's own weight by keeping the legs open, tied with ropes from above, while lowering down the subject. [1]

  3. Periscope - Wikipedia

    en.wikipedia.org/wiki/Periscope

    b Prisms c Observer's eye Principle of the lens periscope. The two periscopes differ in the way they erect the image. The left one uses an erecting prism whereas the right uses an erecting lens and a second image plane. a Objective lens b Field lens c Image erecting lens d Ocular lens e Lens of the observer's eye f Right-angled prism g Image ...

  4. Corrective lens - Wikipedia

    en.wikipedia.org/wiki/Corrective_lens

    A typical application of such a lens is to refocus the correction allowing clear vision at any distance. Unlike with bifocals, near-vision correction is achieved over the entire field of view, in any direction. Switching between distance and near vision is accomplished by re-adjusting the lens, instead of by tilting and/or rotating the head.

  5. Child pornography - Wikipedia

    en.wikipedia.org/wiki/Child_pornography

    Most possessors of child pornography who are arrested are found to possess images of prepubescent children; possessors of pornographic images of post-pubescent minors are less likely to be prosecuted, even though those images also fall within the statutes. [6] Child pornography is illegal and censored in most jurisdictions in the world.

  6. Camera lucida - Wikipedia

    en.wikipedia.org/wiki/Camera_lucida

    Camera lucida in use. A camera lucida is an optical device used as a drawing aid by artists and microscopists.. The camera lucida projects an optical superimposition of the subject being viewed, onto the surface upon which the artist is drawing.

  7. Timeline for the day of the September 11 attacks - Wikipedia

    en.wikipedia.org/wiki/Timeline_for_the_day_of...

    Minutes after, the network resumes its regular programming (children's show Bambuluá) until starting continuous coverage of the events at 8:57. [53] 8:55 (approx.): An announcement is made over the building-wide PA system by officials in the superficially damaged South Tower, "The building is secure, please return to your desks."

  8. Isaac Newton - Wikipedia

    en.wikipedia.org/wiki/Isaac_Newton

    Sir Isaac Newton FRS (25 December 1642 – 20 March 1726/27 [a]) was an English polymath active as a mathematician, physicist, astronomer, alchemist, theologian, and author who was described in his time as a natural philosopher. [7]

  9. Strabismus - Wikipedia

    en.wikipedia.org/wiki/Strabismus

    [53] [54] Most commonly used in adults, the technique is also used for treating children, in particular children affected by infantile esotropia. [55] [56] [57] The toxin is injected in the stronger muscle, causing temporary and partial paralysis. The treatment may need to be repeated three to four months later once the paralysis wears off.