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  2. Ray tracing (graphics) - Wikipedia

    en.wikipedia.org/wiki/Ray_tracing_(graphics)

    In 3D computer graphics, ray tracing is a technique for modeling light transport for use in a wide variety of rendering algorithms for generating digital images . On a spectrum of computational cost and visual fidelity, ray tracing-based rendering techniques, such as ray casting, recursive ray tracing, distribution ray tracing, photon mapping ...

  3. World record progression 100 metres freestyle - Wikipedia

    en.wikipedia.org/wiki/World_record_progression...

    World record progression 100 metres freestyle. The first world record in the 100 metres freestyle in long course (50 metres) swimming was recognised by the International Swimming Federation (FINA) in 1905. [ 1] In the short course (25 metres) swimming events, the world's governing body recognizes world records since 3 March 1991.

  4. Boris Johnson - Wikipedia

    en.wikipedia.org/wiki/Boris_Johnson

    Unleashed. v. t. e. Alexander Boris de Pfeffel Johnson (born 19 June 1964) is a British politician and writer who served as Prime Minister of the United Kingdom and Leader of the Conservative Party from 2019 to 2022. He was previously Foreign Secretary from 2016 to 2018 and Mayor of London from 2008 to 2016.