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These are designed for use with 1/8 inch metal axils. You can use either 1/8 inch aluminum rod (as in the picture) or 1/8 inch brazing rod. Some scaling might be needed for a snug fit with the axles depending on the exact axle diameter.
Typical classroom wind tunnels are prohibitively expensive for most high schools. This is an attempt to develop a low-cost wind tunnel that uses components that are already present in most high schools and parts that are available at most…
This is a single slit device for teaching diffraction. The slid width is difficult to control with precision once the model passes through the slicing software. However, qualitative differences in diffraction patterns are easily visible…
This is a 3D printed balloon car I made with some of my (now) colleagues for teaching physics content (balanced/unbalanced forces) to elementary-aged children. This same car could easily be adapted for physics instruction at higher…
Summary These are variations of a toy sometimes called a Twirly Whirly. Each one has its own moment of inertia based on geometry. The infill can be changed to adjust the weight of each twirly whirly. When they are spun up, the different…
These are meant to attach to paper rockets and paper dragsters. They are modeled for use with ½ inch PVC rollers (0.840 OD), but could easily be scaled for other sized rollers. On the rear of the nose cone is a small hole meant for a size…
These parts were used to build stream tables for a recent teacher workshop. Other parts were purchased from hardware stores and Amazon.
These are all currently available results.
