Dancing iron particles
«Dancing Trees» 81 electromagnets are covered with fine iron dust. The electromagnets can be controlled either via a sensor surface or via prepared programmes…
Electromagnetic cannon
Which ring flies the furthest? The electromagnetic cannon consists of a coil with an iron core that can be abruptly energised at the push of a button. If…
Electromagnetic puppet theatre
Electricity moves magnets. Three stations each contain four coils whose frequency and phase shift can be adjusted. Figures with magnetic legs can be placed on…
Electromagnetic railway
Electric current produces a magnetic field. A track with a magnetic toy train on it runs through a large coil. At the push of a button, current flows through…
Falling tiles
Braking with Eddy Currents. Various metal plates are dropped between two rows of magnets. The magnets generate eddy currents in the plates that slow them…
Field detector
Search for electromagnetic waves. The fields are made audible by loudspeakers on the detectors. They can be found especially in the vicinity of electronic…
Generator track
A magnet generates electric current. A track with a magnetic toy railway on it runs through a large coil. When the toy track is moved in the coil, a current…
Magnet in copper bar
«Floating in Copper» The two copper rods hang in space like a split log. Between them is a magnet that can be made to float with the help of a second magnet…
Magnetic diversity
«Visitor Magnet» There are many electromagnetic objects in this large box. Everyone can explore for themselves where the phenomena can be found and how they…
Musical antenna
Play with the Field. A large antenna registers the changes in its own electric field when people enter it. The changes are made audible as sounds. In this…
Radar Reflector
When light strikes a rough surface it is reflected all over the place. Now polish that surface to cut out all the diffuse radiation, and you get a mirror off…
Soft landing
Confidence in Eddy Currents. Here you can let yourself fall backwards and rely on the braking effect of eddy current. Two strong magnets are attached to a…
Sorting machine
Separation using Eddy Currents. The sorting machine uses magnets to sort different coins according to their conductivity. To do this, the magnets are moved…
Superconductivity
Hovering in the cold. Together with a Technorama employee, various experiments with superconductors can be carried out here.
Terrella
Solar wind – particle shower – aurora borealis. Terra = Earth. Terrella is its diminutive form. But this one packs a punch! The small metallic globe at the…
The Faraday Effect
Magnetic field affects polarization direction. Here, light is polarized by a filter and then sent through a liquid. On the other side, another polarizing…
The twist with the coil
Current using earth’s magnetic field. A coil is rotated in the earth's magnetic field and thereby generates current. The current generated depends on the…
What is Polarization?
Light and oscillations. Normal, unpolarized light is a mixture of light waves with different oscillation directions. When all light waves have the same…
Do not try this @home – microwaves
In this day and age everything has to be done quickly, and the microwave undoubtedly helps save a lot of time! But how does this appliance actually work? Why…
Magnetic Suction
Ding dong! This investigation shows how your doorbell works. Have you ever wondered how an old-style doorbell works? This Snack shows you how. A coil of wire…
Acoustics
Aggregate states
Algorithms
Animals, plants, habitats
Atomic and quantum physics
Atomic structure
Automats
Biology
Buoyancy
Chaos
Characteristics of life
Chemical Reactions
Chemistry
Colors
Computer science
Cryptology
Currents
Data and information
Design elements
Earth sciences
Electricity
Electricity and energy
Electricity and magnetism
Encryption