A setup of 14 flat mirrors installed on adjustable pivots. The mirrors are positioned to reflect sunlight onto a central tube, where the concentrated solar energy heats the tube. As the tube heats up, the user can observe thermal convection current forming inside, demonstrating how solar radiation can be harnessed to generate heat.

This device consists of a Tesla coil with a metal terminal capable of generating electrical arcs. The arcs can be modulated by an electronic system to create sound. By controlling the frequency and intensity of the electrical discharges, the generator produces musical tones, allowing users to hear music created by high-voltage arcs.

The device resembles a harp and can be played, but it lacks any vibrating strings. That is, where there are supposed to be strings that can be vibrated with a finger, there is nothing. Instead, several red laser beams shine down from the upper arm of the harp, acting as strings. When the player's finger interrupts the path of each of these beams, a musical note is produced. Using a fog machine, the path of the laser beams is made visible by the fog created.

A solar panel that converts sunlight into electricity. Users can adjust the angle of the solar panel and observe how it affects the amount of electricity generated, using a fan or light bulb as a load to demonstrate energy conversion.

A device with a solar cell and motorized tracking system. The solar cell automatically adjusts its position to follow the movement of the sun, maximizing the amount of sunlight it captures throughout the day. Users can manually adjust the light source to see the tracking mechanism in action.