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  1. Google Scholar is a freely accessible web search engine that indexes the full text or metadata of scholarly literature across an array of publishing formats and disciplines.

  2. Bipolar disorder, previously known as manic depression, is a mental disorder characterized by periods of depression and periods of abnormally elevated mood that each last from days to weeks.

  3. en.wikipedia.org › wiki › CatCat - Wikipedia

    Cat. The cat ( Felis catus ), commonly referred to as the domestic cat or house cat, is a small domesticated carnivorous mammal. It is the only domesticated species of the family Felidae. Recent advances in archaeology and genetics have shown that the domestication of the cat occurred in the Near East around 7500 BC.

  4. en.wikipedia.org › wiki › PiPi - Wikipedia

    The number π (/paɪ/; spelled out as "pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics. It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, although ...

  5. James Bond is a fictional character created by British novelist Ian Fleming in 1953. A British secret agent working for MI6 under the codename 007, Bond has been portrayed on film in twenty-seven productions by actors Sean Connery, David Niven, George Lazenby, Roger Moore, Timothy Dalton, Pierce Brosnan and Daniel Craig.

  6. Kylian Mbappé Lottin (born 20 December 1998) is a French professional footballer who played as a forward for Ligue 1 club Paris Saint-Germain from 2018 till 2024 and currently captains the France national team.

  7. The United States of America is a federal republic [1] consisting of 50 states, a federal district ( Washington, D.C., the capital city of the United States), five major territories, and various minor islands. [2] [3] Both the states and the United States as a whole are each sovereign jurisdictions. [4] .