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  2. Floating raft system - Wikipedia

    en.wikipedia.org/wiki/Floating_raft_system

    Floating raft is a land-based building foundation that protects it against settlement and liquefaction of soft soil from seismic activity. It was a necessary innovation in the development of tall buildings in the wet soil of Chicago in the 19th century, when it was developed by John Wellborn Root who came up with the idea of interlacing the concrete slab with steel beams.

  3. Microsoft Office password protection - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office_password...

    In Excel and Word 95 and prior editions a weak protection algorithm is used that converts a password to a 16-bit verifier and a 16-byte XOR obfuscation array [1] key. [4] Hacking software is now readily available to find a 16-byte key and decrypt the password-protected document. [5] Office 97, 2000, XP and 2003 use RC4 with 40 bits. [4]

  4. Raft (algorithm) - Wikipedia

    en.wikipedia.org/wiki/Raft_(algorithm)

    Raft is a consensus algorithm designed as an alternative to the Paxos family of algorithms. It was meant to be more understandable than Paxos by means of separation of logic, but it is also formally proven safe and offers some additional features. [ 1 ]

  5. Theorycraft - Wikipedia

    en.wikipedia.org/wiki/Theorycraft

    Theorycraft (or theorycrafting) is the mathematical analysis of game mechanics (usually in video games) to discover optimal strategies and tactics.Theorycraft involves analyzing statistics, hidden systems or underlying game code in order to glean information that is not apparent during normal gameplay. [1]

  6. NACA airfoil - Wikipedia

    en.wikipedia.org/wiki/NACA_airfoil

    is the half thickness at a given value of x (centerline to surface), t is the maximum thickness as a fraction of the chord (so t gives the last two digits in the NACA 4-digit denomination divided by 100). In this equation, at x = 1 (the trailing edge of the airfoil), the thickness is not quite zero. If a zero-thickness trailing edge is required ...

  7. Template:PBA draft - Wikipedia

    en.wikipedia.org/wiki/Template:PBA_draft

    A navigational box that can be placed at the bottom of articles. Template parameters [Edit template data] Parameter Description Type Status State state The initial visibility of the navbox Suggested values collapsed expanded autocollapse String suggested Template transclusions Transclusion maintenance Check completeness of transclusions The above documentation is transcluded from Template ...

  8. Waffle slab foundation - Wikipedia

    en.wikipedia.org/wiki/Waffle_slab_foundation

    Waffle slab foundations adhere to International Building Code requirements. By 2008, most states put into effect the changes adopted in the 2006 IBC and, in regards to foundations, the on-grade mat foundation has become a more attractive design because, as an engineered system, it already accommodates the 2008 design recommendations, and required no major modifications to bring it into compliance.

  9. Calculation of glass properties - Wikipedia

    en.wikipedia.org/wiki/Calculation_of_glass...

    The calculation of glass properties allows "fine-tuning" of desired material characteristics, e.g., the refractive index. [1]The calculation of glass properties (glass modeling) is used to predict glass properties of interest or glass behavior under certain conditions (e.g., during production) without experimental investigation, based on past data and experience, with the intention to save ...