We will use some light sources (lamps) with different wavelengths to help illuminate the field of view. As part of the demonstration, we will discuss how different light sources emit different spectra and thus also stimulate a discussion on energy efficiency: Incandescent lamps emit a significant amount of light that we cannot see, while LEDs are mostly limited to visible light.
We provide several experimental objects that people can interact with. These include fruits, bottles of different powders, pictures, drawings, and handouts with explanatory text and hidden functions. We also provide UV lamps that can be used to create fluorescence on the handouts that are given out, which can be seen either by the naked eye or on the cameras. In addition, we provide a few different markers, paints, and paper for the audience to make their own art. The goal is to then explore what has been shown and learned with their own example, and in this way illustrate that everyday materials that look the same can actually be different.