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    0 starsskalet | Shared With: Everyone - Dec 17 2006 | diy, luxeon, LED, cycling, headlamp, lighting
    instructables : Ultimate Night Vision Headlamp - 500+ lumens with only 8 watts

    sweet super bright diy headlamp

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  • misaacs
    10 days ago

    Quoted: A bike remains upright when it is steered so that the ground reaction forces exactly balance all the other forces it experiences, such as gravitational, inertial or centrifugal if in a turn, and aerodynamic if in a crosswind.[4] Steering may be supplied by a rider or, under certain circumstances, by the bike itself. This self-stability is generated by a combination of several effects that depend on the geometry, mass distribution, and forward speed of the bike.

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