First Test of our Drawing Pendulum

One of our intern projects this semester was to construct a drawing-pendulum. Our first test showed that a marker drawing on paper generates a bit too much drag to produce a good pattern. Drawing on polyethylene plastic worked quite a bit better. We eventually ended up creating a suspension system above the marker to counterbalance some if it's weight. This reduced the drag produced by the marker, which allowed us to get good results using regular paper.
  • Ballistics and Blasters
  • Chemistry and Reactions
  • Marshmallows and Food
  • Off the Roof
  • Cutting Things in Half
  • Lab Milestones
  • Testing Toys
  • Ambushing and Fun Abuses
  • Curiosities
  • Playing With Fire
  • That's a Good Question
  • Art Enthusiasts
  • Willful Distractions
  • Don't Try This at Home
  • Balloons and Bubbles