Ask the Chatbot Games & Quizzes ProCon History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture Money Videos
overhaul
Directory
References
Discover
New York NY/ USA- November 23, 2018 Hordes of shoppers throng the Macy's Herald Square flagship store in New York looking for bargains on the day after Thanksgiving, Black Friday.
Why Is It Called Black Friday?
Santa Claus flying in his sleigh, christmas, reindeer
Was Santa Claus a Real Person?
An ancient egyptian hieroglyphic painted carving showing the falcon headed god Horus seated on a throne and holding a golden fly whisk. Before him are the Pharoah Seti and the goddess Isis. Interior wall of the temple to Osiris at Abydos, Egypt.
11 Egyptian Gods and Goddesses
Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.
10 Famous Artworks by Leonardo da Vinci
Thumbnail for flags that look alike quiz Russia, Slovenia, Iceland, Norway
Flags That Look Alike
Diverse elementary school children wearing school uniforms running outside of school. Boys girls
Pro and Con: School Uniforms
Los Angeles Police Department wanted flyer on Elizabeth Short, aka the "Black Dahlia," who was brutally murdered in January 1947. The FBI supported the Los Angeles Police Department in the case, including by identifying Short through her fingerprints that
America’s 5 Most Notorious Cold Cases (Including One You May Have Thought Was Already Solved)

overhaul

manufacturing

Learn about this topic in these articles:

aerospace industry

  • Assembly of the Boeing 787
    In aerospace industry: Airframe and engine overhaul

    To ensure the safe operation of airliners, airframes and engines of civil and military aircraft have obligatory major overhauls after specified time intervals. For the airframes of commercial airliners, this is required after about five years (22,000 flight hours) of operation. In such a…

    Read More