This is a museum of science and technology for children, demonstrating the laws of physics plainly enough for the youngest visitors to understand: why a spring rebounds, how the clouds form, what blood pressure is, and so on. The exposition takes three floors, split into sections like Acoustics, Optics, Magnetism, Electricity, Water Room, Puzzles, Mechanics and Space. There is a spherical film theatre, too. Visitors are allowed and, in fact, encouraged to touch, rotate, take apart, rock, and otherwise examine any exhibits. Among the exhibits here you will find a miniature hydroelectric power plant, the cabin of a real truck, a heartbeat drum, a laser pendulum, a transparent grand piano that plays with light, a drum kit, a labyrinth of mirrors and laser labyrinth, a 3D game of noughts and crosses, a miniature hoisting crane, pneumatic mail system, laser harp, mini-tornado, soap bubble room, air gun, an air cushion you can ride, "magnetic" room where the floor is tilted 30 degrees, and a multitude of other curios. You can make sand move with the power of sound in the Acoustics Room, and draw with light arrows on a white wall in the Electricity Room. The Water Room is a huge cascade installation with floodgates, vortices and pumps. Here you can navigate a rowboat by changing the force and direction of the water flow. Every exhibit has a detailed explanation next to it, but the young assistants at Experimentanium will be happy to provide further information. Experimentanium offers excursions, lectures and master classes, for which visitors sign up on the museum's website. There is a shop of scientific and intellectual toys, and a café.