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  2. Stair climbing - Wikipedia

    en.wikipedia.org/wiki/Stair_climbing

    Stair climbing has developed into the organized sport tower running.Every year several stair climbing races are held around the world with the competitors running up the stairs of some of the world's tallest buildings and towers (e.g., the Empire State Building, Gran Hotel Bali), or on outside stairs such as the Niesenbahn Stairway.

  3. Penrose stairs - Wikipedia

    en.wikipedia.org/wiki/Penrose_stairs

    He did not realize that his figure was a continuous flight of stairs while drawing, but the process enabled him to trace his increasingly complex designs step by step. When M.C. Escher's Ascending and Descending was sent to Reutersvärd in 1961, he was impressed but didn't like the irregularities of the stairs (2 × 15 + 2 × 9).

  4. Climbing stairs has lots of health benefits. Here are 3 ways ...

    www.aol.com/lifestyle/climbing-stairs-lots...

    To get the most out of your steps, people should climb stairs in a physical place where they can spend more time going up. Ginader suggests heading to a stairwell or stadium with several rows of ...

  5. Margaria–Kalamen power test - Wikipedia

    en.wikipedia.org/wiki/Margaria–Kalamen_power_test

    h is the vertical height between the third and ninth steps t is the time between stepping on the third and ninth steps g is acceleration due to gravity, approximately 9.81 m/s 2. To obtain power in units of watts, that is, SI units, the mass must be expressed in kilograms and the time in seconds. American football coaches use a slight variation ...

  6. 'Climbing Everest' on a step box for 'joyful' girl - AOL

    www.aol.com/climbing-everest-step-box-joyful...

    A group of gym members 'step' their way to nearly 9,000m in memory of a young girl who died.

  7. Stairs - Wikipedia

    en.wikipedia.org/wiki/Stairs

    The longest stone stairs in Japan are the 3,333-step stairs of the Shakain temple in Yatsushiro, Kumamoto. [52] The second ones, Mount Haguro stone stairs, have 2,446 steps in Tsuruoka, Yamagata. The CN Tower's staircase reaches the main deck level after 1,776 steps and the Sky Pod above after 2,579 steps; it is the tallest metal staircase on ...

  8. Ladder - Wikipedia

    en.wikipedia.org/wiki/Ladder

    An extension ladder. A ladder is a vertical or inclined set of rungs or steps commonly used for climbing or descending. There are two types: rigid ladders that are self-supporting or that may be leaned against a vertical surface such as a wall, and rollable ladders, such as those made of rope or aluminium, that may be hung from the top.

  9. Stair lift - Wikipedia

    en.wikipedia.org/wiki/Stair_lift

    Stair lifts are used by people of all ages and child car seats can usually be fixed a standard stair lift seat using the seat belt provided with the stair lift system. Many stair lifts are also fitted with a key, to allow the user to prevent others from using the lift. Codes of practice and technical specifications apply to stair lift manufacture.