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  2. Half-Life (video game) - Wikipedia

    en.wikipedia.org/wiki/Half-Life_(video_game)

    Half-Life is a first-person shooter that requires the player to perform combat tasks and puzzle solving to advance through the game. Unlike most first-person shooters at the time, which relied on cut-scene intermissions to detail their plotlines, Half-Life ' s story is told mostly using scripted sequences (bar one short cutscene), keeping the player in control of the first-person viewpoint.

  3. Half-life - Wikipedia

    en.wikipedia.org/wiki/Half-life

    In this situation it is generally uncommon to talk about half-life in the first place, but sometimes people will describe the decay in terms of its "first half-life", "second half-life", etc., where the first half-life is defined as the time required for decay from the initial value to 50%, the second half-life is from 50% to 25%, and so on.

  4. Free neutron decay - Wikipedia

    en.wikipedia.org/wiki/Free_neutron_decay

    Therefore, the half-life for this process (which differs from the mean lifetime by a factor of ln(2) ≈ 0.693) is 611 ± 1 s (about 10 min, 11 s). [3] [4] The beta decay of the neutron described in this article can be notated at four slightly different levels of detail, as shown in four layers of Feynman diagrams in a section below. n 0 → p ...

  5. List of radioactive nuclides by half-life - Wikipedia

    en.wikipedia.org/wiki/List_of_radioactive...

    This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds.

  6. Half-Life (series) - Wikipedia

    en.wikipedia.org/wiki/Half-Life_(series)

    The developer of the Half-Life series, Valve, was founded in 1996 in Kirkland, Washington by the former Microsoft employees Mike Harrington and Gabe Newell. Valve began working on the first Half-Life soon after formation, and settled on a concept for a horror-themed 3D action game, using the Quake engine as licensed by id Software.

  7. Combine (Half-Life) - Wikipedia

    en.wikipedia.org/wiki/Combine_(Half-Life)

    Depiction of the Combine's Civil Protection. Certain elements of the Combine's appearance, such as that of the Advisors, are inspired by the works of Frank Herbert. [1] The towering Striders seen throughout Half-Life 2 and its subsequent episodes are based directly on the Martian tripods of the H. G. Wells novel The War of the Worlds, where Martians invade Victorian England, using the tripods ...

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Half-Life 2 - Wikipedia

    en.wikipedia.org/wiki/Half-Life_2

    Half-Life 2 was selected by readers of The Guardian as the best game of the decade, with particular praise for the environment design. The Guardian journalist Keith Stuart wrote that it "pushed the envelope for the genre, and set a new high watermark for FPS narrative". [72] Half-Life 2 won Crispy Gamer's Game of the Decade [73] tournament ...