(new Blinken({title: "Maize & Blue Harmonic Oscillator", 

              author: "yottalogical"})).run(function () {

    // Initial condition

    var position = 0; // Bulbs

    var velocity = 0.0; // Bulbs per second

    // Update lights one frame

    return function (lights) {

      // A quick catch to ensure no index out of bounds errors

      if (0 <= position && position <= lights.length - 1) {

        // Light up the bulb at the leadining position

        lights[position].a = 1;

        // Set color (yellow going up, blue going down)

        if (velocity >= 0) {

          lights[position].rgb(1, 1, 0);

        } else {

          lights[position].rgb(0, 0, 1);

        }

      }

      // Progressively dim trailing bulb

      for (var i = 0; i < lights.length; i++) {

        if (lights[i].a > 0) {

          lights[i].a -= 0.05;

        }

      }

      // Each update, position changes by the same amount

      // Direction of velocity is reflected in the direction position changes

      // Magnitude of velocity is relfected by how quickly updates occur (see return statement)

      position += (velocity >= 0 ? 1 : -1);

      // Velocity changes proportionally to the distance from equlibrium (as is the case with harmonic motion)

      velocity += (lights.length/2.0 - 1 - position) / 15.0;

      // The faster velocity is, the faster updates occur

      // Frequency is inversely proportional to period

      return 1000/Math.abs(velocity);

    };

});