Level 3

Explore resonance, waves, and acoustics with this simple rijke (reekee) tube.

Make a flaming tube to explore the physics of waves and acoustics.

The Ruben's Tube should be used with caution and vigilance, especially if used indoors. 

 

Build a cost-effective amplifier for your SPS chapter, or use this as a workshop template for community outreach. Empower participants by helping them create an effective, useful, and integral electronic device.

Recreate E.F.F. Chladni's classic demo of sprinkling sand on a plate and playing it with a violin bow to create and visualize various vibrational patterns. This versatile demo can be adapted to talk about sound wave acoustics, vibrational normal modes, and energy transport to a wide range of audiences. 

Build a simple Chladni plate using a 6" x 6" metal sheet, a 2 watt speaker, powered with a 20 gain amplifier and phone. Sprinkle sand on the sheet, and play various sound frequencies to reveal the sheet's assortment of resonant vibrational modes. 

Along with the plate demo itself, an amplifier can be made fairly easily with an LM386 op amp. Download instructions for making the amplifier under associated files or can be found here

Construct a simple motor out of everyday materials in this workshop. Particpants learn first hand how to leverage the science of electricity and magnetism to create useful tools that we use every day.

This demonstration dramatically shows how not just the strength of a material, but how it is designed, is important when withstanding forces.

After completing Part 1, explore solar system formation, tides, and planetary rings using a spandex sheet.

Constructing this simple and inexpensive portable cellphone charger provides an introduction to soldering and electronics.

Practically, these units can be used for charging in regions of the world where grid electricity is not readily available.

Explore forces in a gravitational field using a spandex sheet and marbles.

This demonstration shows how gravity can be interpreted as the bending of spacetime due to massive bodies. Participants can identify gravity interactions, observe how the shape of the spandex corresponds to mathematical models, and make inferences based on object size, shape, and mass.

After completing this demonstration, present Part 2 to explore solar system formation, tides, and planetary rings. 

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