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  2. Pipe organ - Wikipedia

    en.wikipedia.org/wiki/Pipe_organ

    The pipe organ is a musical instrument that produces sound by driving pressurised air (called wind) through the organ pipes selected from a keyboard.Because each pipe produces a single pitch, the pipes are provided in sets called ranks, each of which has a common timbre, volume, and construction throughout the keyboard compass.

  3. Quizlet - Wikipedia

    en.wikipedia.org/wiki/Quizlet

    Also in 2016, Quizlet launched "Quizlet Live", a real-time online matching game where teams compete to answer all 12 questions correctly without an incorrect answer along the way. [15] In 2017, Quizlet created a premium offering called "Quizlet Go" (later renamed "Quizlet Plus"), with additional features available for paid subscribers.

  4. Organ (music) - Wikipedia

    en.wikipedia.org/wiki/Organ_(music)

    The organ is a relatively old musical instrument, [3] dating from the time of Ctesibius of Alexandria (285–222 BC), who invented the water organ. It was played throughout the Ancient Greek and Ancient Roman world, particularly during races and games. [ 4 ]

  5. Why the Organ At Baseball Games? - AOL

    www.aol.com/why-organ-baseball-games-210200102.html

    On April 26, 1941 Ray Nelson entertained fans that showed up early with a pipe organ behind the ballpark's grandstands. The Chicago Tribune notes that Nelson had to cut the music before the first ...

  6. List of inventions and discoveries by women - Wikipedia

    en.wikipedia.org/wiki/List_of_inventions_and...

    Invented in 1952 by Virginia Apgar. Disposable diapers The first disposable diaper was invented in 1946 by Marion Donovan, a professional-turned-housewife who wanted to ensure her children's cloth diapers remained dry while they slept. [12] Donovan patented her design (called 'Boaters') in 1951.

  7. International Women’s Day: 11 essential items that were ...

    www.aol.com/news/international-women-day-11...

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  8. Water organ - Wikipedia

    en.wikipedia.org/wiki/Water_organ

    Musicians with cornua and a water organ, detail from the Zliten mosaic, 2nd century CE. The water organ or hydraulic organ (Greek: ὕδραυλις) (early types are sometimes called hydraulos, hydraulus or hydraula) is a type of pipe organ blown by air, where the power source pushing the air is derived by water from a natural source (e.g. by a waterfall) or by a manual pump.

  9. History of anatomy - Wikipedia

    en.wikipedia.org/wiki/History_of_anatomy

    In the 17th century, many of the anatomical specimens were dried and stored in cabinets. In the Netherlands, there were attempts to replicate Egyptian mummies by preserving soft tissue. This became known as Balsaming. In the 1660s the Dutch were also attempting to preserve organs by injecting wax to keep the organ's shape.