All photos taken on a Panasonic Lumix GX1 with an aperture of 16, exposure time of 15 seconds, and a distance of 12 inches between the top end of the pendulum and the lens.

We identified unique positions on the perimeter of the tray and tested both a perpendicular and a tangential push.

For the first two trays, we did three trials of each set-up in order to determine how consistent the outputs were.

circle1 circle2 circle3 circle4 circle5 circle6  square1 square2 square3 square4  square6 square5

The last set is missing the tests at 4 weights because the camera ran out of battery.


We did a quick test of different light caps to see what effect they had on the drawings.