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  2. Stairs - Wikipedia

    en.wikipedia.org/wiki/Stairs

    A staircase or stairway is one or more flights of stairs leading from one floor to another, and includes landings, newel posts, handrails, balustrades, and additional parts. [4] In buildings, stairs is a term applied to a complete flight of steps between two floors. A stair flight is a run of stairs or steps

  3. Hyperbolic spiral - Wikipedia

    en.wikipedia.org/wiki/Hyperbolic_spiral

    A spiral staircase in the Cathedral of St. John the Divine.Several helical curves in the staircase project to hyperbolic spirals in its photograph.. A hyperbolic spiral is a type of spiral with a pitch angle that increases with distance from its center, unlike the constant angles of logarithmic spirals or decreasing angles of Archimedean spirals.

  4. Category:Stairways - Wikipedia

    en.wikipedia.org/wiki/Category:Stairways

    Stairways — outdoor staircases, and structures for external pedestrian infrastructure, ... Double spiral staircases (10 P) E. Escalators (1 C, 5 P) L. Ladders (13 P) U.

  5. Cobweb plot - Wikipedia

    en.wikipedia.org/wiki/Cobweb_plot

    An animated cobweb diagram of the logistic map = (), showing chaotic behaviour for most values of >. A cobweb plot , known also as Lémeray Diagram or Verhulst diagram is a visual tool used in the dynamical systems field of mathematics to investigate the qualitative behaviour of one-dimensional iterated functions , such as the logistic map .

  6. List of ancient spiral stairs - Wikipedia

    en.wikipedia.org/wiki/List_of_ancient_spiral_stairs

    The spiral stair is a type of stairway which, due to its complex helical structure, has been introduced relatively late into architecture. Although the oldest example dates back to the 5th century BC, [ 1 ] it was only in the wake of the influential design of the Trajan's Column that this space-saving new type permanently caught hold in ancient ...

  7. Trajan's Column - Wikipedia

    en.wikipedia.org/wiki/Trajan's_Column

    Inside the shaft, a spiral staircase of 185 steps provides access to a viewing deck at the top. The capital block of Trajan's Column weighs 53.3 tons, and had to be lifted to a height of about 34 metres (112 feet). [3] Ancient coins indicate preliminary plans to top the column with a statue of a bird, probably an eagle. [4]

  8. Talk:Stairs - Wikipedia

    en.wikipedia.org/wiki/Talk:Stairs

    2. Is the reason Arne Jacobsen's then-well-known spiral staircase in Copenhagen's circa-1960 SAS Royal Hotel not mentioned because it is insignificant? Would ya at least want to include it in the random JPEGs at bottom? 3. In the caption to the JPEG of the Loretto Chapel in Santa Fe, remove the hyperlink to 'spiral staircase'.

  9. Palazzo Contarini del Bovolo - Wikipedia

    en.wikipedia.org/wiki/Palazzo_Contarini_del_Bovolo

    View of the famous staircase. The Palazzo Contarini del Bovolo (also called the Palazzo Contarini Minelli dal Bovolo) is a small palazzo in Venice, Italy, best known for its external multi-arch spiral staircase known as the Scala Contarini del Bovolo (literally, "of the snail").