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  2. Naismith's rule - Wikipedia

    en.wikipedia.org/wiki/Naismith's_rule

    Pace [6] in minutes per kilometre or mile vs. slope angle resulting from Naismith's rule [7] for basal speeds of 5 and 4 km / h. [n 1] The original Naismith's rule from 1892 says that one should allow one hour per three miles on the map and an additional hour per 2000 feet of ascent. [1] [4] It is included in the last sentence of his report ...

  3. Preferred walking speed - Wikipedia

    en.wikipedia.org/wiki/Preferred_walking_speed

    Commonly, individuals place some value on their time. Economic theory therefore predicts that value-of-time is a key factor influencing preferred walking speed.. Levine and Norenzayan (1999) measured preferred walking speeds of urban pedestrians in 31 countries and found that walking speed is positively correlated with the country's per capita GDP and purchasing power parity, as well as with a ...

  4. Orders of magnitude (speed) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(speed)

    1.3 × 10 −3: 2 × 10 −12: Typical speed of Thiovulum majus, the fastest-swimming bacterium. [10] 10 −3: 0.00178: 0.00641: 0.00398: 5.94 × 10 −12: The speed of a particle orbiting a ball of lead of radius 1 m near its surface under its gravity (that is, the first cosmic speed for this ball). 0.00275: 0.00990: 0.00615: 9.17 × 10 −12

  5. Time travel - Wikipedia

    en.wikipedia.org/wiki/Time_travel

    Time travel is a concept in philosophy and fiction, particularly science fiction. In fiction, time travel is typically achieved through the use of a device known as a time machine. The idea of a time machine was popularized by H. G. Wells's 1895 novel The Time Machine. [1] It is uncertain whether time travel to the past would be physically ...

  6. Foot per second - Wikipedia

    en.wikipedia.org/wiki/Foot_per_second

    It expresses the distance in feet (ft) traveled or displaced, divided by the time in seconds (s). [2] The corresponding unit in the International System of Units (SI) is the meter per second. Abbreviations include ft/s, fps, and the scientific notation ft s −1. [1]

  7. United States Army Physical Fitness Test - Wikipedia

    en.wikipedia.org/wiki/United_States_Army...

    If a soldier had a permanent medical condition that kept him or her from conducting the two mile run, an alternative aerobic event consisting of either a 2.5-mile walk, an 800-yard swim, or 6.2-mile cycle ride could have been taken. There were no alternate events for the push-up or sit-up.

  8. Mile - Wikipedia

    en.wikipedia.org/wiki/Mile

    The radar mile is a unit of time (in the same way that the light year is a unit of distance), equal to the time required for a radar pulse to travel a distance of two miles (one mile each way). Thus, the radar statute mile is 10.8 μs and the radar nautical mile is 12.4 μs.

  9. Running energetics - Wikipedia

    en.wikipedia.org/wiki/Running_energetics

    More recently, it has been proposed that an accurate prediction of the energy cost of running at a given speed can be made from the time available to generate force to support body weight. [11] This theory suggests that smaller animals must take shorter, quicker steps to travel a given distance than larger animals.