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  2. John H. Lienhard - Wikipedia

    en.wikipedia.org/wiki/John_H._Lienhard

    The heat transfer textbook has been available as a free ebook since 2001, one of the earliest textbooks to be distributed in this format. [16] Lienhard created the radio program The Engines of Our Ingenuity in January 1988. [3] He has written and voiced thousands of episodes in the decades since. [17]

  3. Ingenuity (helicopter) - Wikipedia

    en.wikipedia.org/wiki/Ingenuity_(helicopter)

    Ingenuity, nicknamed Ginny, is an autonomous NASA helicopter that operated on Mars from 2021 to 2024 as part of the Mars 2020 mission. Ingenuity made its first flight on 19 April 2021, demonstrating that flight is possible in the extremely thin atmosphere of Mars, and becoming the first aircraft to conduct a powered and controlled extra-terrestrial flight.

  4. Help:Download as PDF - Wikipedia

    en.wikipedia.org/wiki/Help:Download_as_PDF

    In the Print/export section select Download as PDF. The rendering engine starts and a dialog appears to show the rendering progress. When rendering is complete, the dialog shows "The document file has been generated. Download the file to your computer." Click the download link to open the PDF in your selected PDF viewer.

  5. Playpen (website) - Wikipedia

    en.wikipedia.org/wiki/Playpen_(website)

    Playpen was a darknet child pornography website that operated from August 2014 to March 2015. [1] [2] The website operated through the Tor network which allowed users to use the website anonymously. After running the website for 6 months, the website owner Steven W. Chase was arrested by the FBI.

  6. Playpen (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Playpen_(disambiguation)

    Playpen: Playpen, a piece of furniture for an infant or young toddler; Playpen (school), an English-medium education school in Bangladesh; Playpen (website), a darknet child pornography site; It can also refer to: Exercise pen, sometimes called a playpen for pets

  7. List of Ingenuity flights - Wikipedia

    en.wikipedia.org/wiki/List_of_Ingenuity_flights

    10 m (33 ft) 448.21 m (1,470.5 ft) Roundtrip 4.3 m/s (9.6 mph) Takeoff and return, land within Airfield H 11]. The return path was about 5 m (16 ft) to the side to allow another attempt to take paired images for stereo imagery. Landing was about 25 m (82 ft) east from the take-off point. [49] This flight was decisive for the subsequent fate of the helicopter, which then got its mission ...

  8. Playpen - Wikipedia

    en.wikipedia.org/wiki/Playpen

    A playpen is a piece of furniture used to contain an infant or young toddler in specific area to prevent the child from getting into harm when her/his parent or guardian is occupied or away while keeping the child occupied with the toys which can be placed inside. The earliest use of the word "playpen" was cited in the Oxford English Dictionary ...

  9. THG Ingenuity Cloud Services - Wikipedia

    en.wikipedia.org/wiki/THG_Ingenuity_Cloud_Services

    THG Ingenuity Cloud Services, formerly UK2 Group, is a global provider of internet services. It forms part of THG Ingenuity, an e-commerce services platform. Its services include web hosting , virtual private servers , domain name registration , management, dedicated servers and a content delivery network .