Middle School (ages 11-13) & General Public

Falling space rocks collide with the surface of planets and moons to create impact craters which can be found all over our solar system

Movement of massive objects in space create gravitational waves that travel outward in spacetime and bend light along the way. We detect these waves by using lasers and watching changes in how light moves through space. This demo uses clear jello and a laser to show how collisions create ripples that radiate outward from the source, which are able to bend light.

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

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

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

 

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

Explore the properties of liquid nitrogen while making a tasty treat. This demo is great for chapter socials and smaller outreach events.

Tuning forks are one of the few instruments that resonate with one distinct frequency. Create a workshop with tuning forks with this variety of quick, fun demos ranging from visualizing sound with lasers, to watching energy transfer through pendulums.

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.

By dropping a magnet through a copper tube, participants learn how the magnetics fields can still interact with nonmagnetic materials. 

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