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  2. Identification studies of UFOs - Wikipedia

    en.wikipedia.org/wiki/Identification_studies_of_UFOs

    The Pentagon UFO Report, (or colloquially known as the Pentagon UFO Report) is a United States federally mandated assessment summarizing information regarding unidentified flying objects (UFOs), also known as unidentified aerial phenomenon (UAPs). On June 25, 2021, a nine-page preliminary assessment was issued.

  3. List of reported UFO sightings - Wikipedia

    en.wikipedia.org/wiki/List_of_reported_UFO_sightings

    The 1976 Tehran UFO Incident was a radar and visual sighting of a UFO over the capital of Iran, during early morning hours. Two Imperial Iranian Air Force F-4 Phantom II jet interceptors reported losing instrumentation and communications as they approached the object. [169] 1977-09-20 Petrozavodsk phenomenon

  4. Condon Committee - Wikipedia

    en.wikipedia.org/wiki/Condon_Committee

    Mass-market paperback edition of the Condon Report, published by New York Times/Bantam Books (January, 1969), 965 pages. The Condon Committee was the informal name of the University of Colorado UFO Project, a group funded by the United States Air Force from 1966 to 1968 at the University of Colorado to study unidentified flying objects under the direction of physicist Edward Condon.

  5. Fender (vehicle) - Wikipedia

    en.wikipedia.org/wiki/Fender_(vehicle)

    Fender is the American English term for the part of an automobile, motorcycle or other vehicle body that frames a wheel well (the fender underside). Its primary purpose is to prevent sand, mud, rocks, liquids, and other road spray from being thrown into the air by the rotating tire.

  6. Project Blue Book - Wikipedia

    en.wikipedia.org/wiki/Project_Blue_Book

    However, researcher Brad Sparks, [31] citing research from the May 1970 issue of NICAP's UFO Investigator, reports that the last day of Blue Book activity was actually January 30, 1970. According to Sparks, Air Force officials wanted to keep the Air Force's reaction to the UFO problem from overlapping into a fourth decade, and thus altered the ...

  7. Design of plastic components - Wikipedia

    en.wikipedia.org/wiki/Design_of_plastic_components

    Draft angle design is an important factor when designing plastic parts. Because of shrinkage of plastic material, injection molded parts have a tendency to shrink onto a core. This creates higher contact pressure on the core surface and increases friction between the core and the part, thus making ejection of the part from the mold difficult.