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  2. File:NPS trail-of-tears-map.pdf - Wikipedia

    en.wikipedia.org/wiki/File:NPS_trail-of-tears...

    English: The Trail of Tears map shows one of the most shameful episodes of American history, today preserved as the Trail of Tears National Historic Trail. Date 30 April 2017

  3. Caster angle - Wikipedia

    en.wikipedia.org/wiki/Caster_angle

    Front suspension of a race car ‍ — the caster angle is formed by the line between upper and lower ball joint An example of a chopper with a raked fork at an extreme caster angle. The caster angle [1] or castor angle [2] is the angular displacement of the steering axis from the vertical axis of a steered wheel in a car, motorcycle, bicycle ...

  4. Bicycle and motorcycle geometry - Wikipedia

    en.wikipedia.org/wiki/Bicycle_and_motorcycle...

    In motorcycles, the steering axis angle is measured from the vertical and called the caster angle, rake angle, or just rake; [5] a 0° rake is therefore vertical. For example, Moto Guzzi [6] offers: a 2007 Breva V 1100 with a rake of 25°30′ (25.5 degrees) a 2007 Nevada Classic 750 with a rake of 27.5°

  5. Trail of Tears - Wikipedia

    en.wikipedia.org/wiki/Trail_of_Tears

    The Trail of Tears was the forced displacement of about 60,000 people of the "Five Civilized Tribes" between 1830 and 1850, and the additional thousands of Native Americans and their enslaved African Americans [3] within that were ethnically cleansed by the United States government.

  6. Ackermann steering geometry - Wikipedia

    en.wikipedia.org/wiki/Ackermann_steering_geometry

    A linkage between these hubs pivots the two wheels together, and by careful arrangement of the linkage dimensions the Ackermann geometry could be approximated. This was achieved by making the linkage not a simple parallelogram, but by making the length of the track rod (the moving link between the hubs) shorter than that of the axle, so that ...

  7. Template:Age in days - Wikipedia

    en.wikipedia.org/wiki/Template:Age_in_days

    Download QR code; Print/export Download as PDF; Printable version; In other projects Wikimedia Commons; ... This template returns the number of days between two dates ...

  8. Scrub radius - Wikipedia

    en.wikipedia.org/wiki/Scrub_radius

    Zero scrub radius (top) positive scrub radius (center) negative scrub radius (bottom) In an automobile's suspension system, the scrub radius is the distance in front view between the king pin axis and the center of the contact patch of the wheel, where both would theoretically touch the road.

  9. Self aligning torque - Wikipedia

    en.wikipedia.org/wiki/Self_aligning_torque

    Self aligning torque , slip angle , and camber angle are also shown. Self aligning torque ( SAT ), also known as aligning torque or aligning moment ( Mz , moment about the z direction ), is the torque that a tire creates as it rolls along, which tends to steer it, i.e. rotate it around its vertical axis.