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  2. Manual vacuum cleaner - Wikipedia

    en.wikipedia.org/wiki/Manual_vacuum_cleaner

    The manual vacuum cleaner was a type of non-electric vacuum cleaner, using suction to remove dirt from carpets, being powered by human muscle, similar in use to a manual lawn mower. Its invention is dated to the second half of the 19th century, when patents were granted to inventors in the United States, Britain, France, and elsewhere.

  3. Vacuum pump - Wikipedia

    en.wikipedia.org/wiki/Vacuum_pump

    The Roots blower is one example of a vacuum pump. A vacuum pump is a type of pump device that draws gas particles from a sealed volume in order to leave behind a partial vacuum. The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity. [1]

  4. Vacuum cleaner - Wikipedia

    en.wikipedia.org/wiki/Vacuum_cleaner

    A vacuum cleaner, also known simply as a vacuum, is a device that uses suction, and often agitation, in order to remove dirt and other debris from carpets, hard floors, and other surfaces. The dirt is collected into a dust bag or a plastic bin.

  5. Vacuum tube - Wikipedia

    en.wikipedia.org/wiki/Vacuum_tube

    Later thermionic vacuum tubes, mostly miniature style, some with top cap connections for higher voltages. A vacuum tube, electron tube, [1] [2] [3] thermionic valve (British usage), or tube (North America) [4] is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.

  6. Tree structure - Wikipedia

    en.wikipedia.org/wiki/Tree_structure

    A tree structure, tree diagram, or tree model is a way of representing the hierarchical nature of a structure in a graphical form. It is named a "tree structure" because the classic representation resembles a tree , although the chart is generally upside down compared to a biological tree, with the "stem" at the top and the "leaves" at the bottom.

  7. Bionic Leaf - Wikipedia

    en.wikipedia.org/wiki/Bionic_Leaf

    The Bionic Leaf is a biomimetic system that gathers solar energy via photovoltaic cells that can be stored or used in a number of different functions. Bionic leaves can be composed of both synthetic ( metals , ceramics , polymers , etc.) and organic materials ( bacteria ), or solely made of synthetic materials.

  8. Vacuum aspiration - Wikipedia

    en.wikipedia.org/wiki/Vacuum_aspiration

    Single-use double-valve manual vacuum aspirator. Vacuum or suction aspiration is a procedure that uses a vacuum source to remove an embryo or fetus through the cervix.The procedure is performed to induce abortion, as a treatment for incomplete spontaneous abortion (otherwise commonly known as miscarriage) or retained fetal and placental tissue, or to obtain a sample of uterine lining ...

  9. Jackson-Pratt drain - Wikipedia

    en.wikipedia.org/wiki/Jackson-Pratt_drain

    Jackson-Pratt Drain Trans man with two Jackson-Pratt drains after keyhole mastectomy. A Jackson-Pratt drain (also called a JP drain) is a closed-suction medical device that is commonly used as a post-operative drain for collecting bodily fluids from surgical sites.