How it works: The exhibit shows the phenomenon of a standing wave. A loudspeaker is mounted tightly to a see-through pipe. From the loudspeaker, a sine wave is emitted. The goal is to find the correct frequency for the standing wave to occur. It is achieved by turning the knob, which changes the sound frequency….
How it works: The exhibit presents some phenomena concerning visible light. The first one is colour synthesis, meaning the emergence of new colours, from the mix of basic ones. Each of the three embedded knobs adjusts the intensity of one of the basic colours: red, green and blue. mixing those three together creates white light….
How it works: By revolving the handle, water is pumped to the vertical container. The higher the water level, the greater pressure pushes the liquid farther to the next container and the harder it acts on the turbine’s blades. The turbine passes the kinetic energy of the stream to a built-in generator, that converts it…
How it works: The exhibit shows chaotic movement of particles in liquid or gas environments, so-called Brownian motion. Under a see-through cover, there’s a board and a set of marbles. The marbles are set in motion by an irregular mechanism, and commonly occuring impacts between the marbles ensure that the movement is of a strictly…
How it works: The exhibit has three air blowers. If you place a ball in the air-stream, it will stay in approximately the same position, relative to the blower. This allows for changing the position of the ball, using the blower only. It’s happening because of the pressure drop in the region of fast moving…
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