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Angebot nach Ausstellung

Current and magnets



Electricity and magnets are well known to us as indispensable everyday helpers. However, they are not only found in practical devices and fridge decorations, but also in nature. Yes, currents flow and magnetic fields are created even within us. Without electromagnetism, neither we nor our environment would exist.

In the "Electricity and Magnets" exhibition, you can get to the bottom of the connections between electromagnetism and discover surprising and beautiful phenomena: energise your body and visualise your heart currents. Get creative by building three-dimensional luminous circuits and design fascinating magnetic sculptures. Or use electromagnets to make millions of iron particles dance to your tune.

Exhibit-Links
11976 Phänomen

847 Compass needles

Magnetic Domains. There are 847 compass needles attached to a disc. Because they are so close together, they influence each other. With a magnet, the compass…

11981 Detail

Coupled magnetic sculpture

Transmit motion without contact. Magnets are attached to the spokes of several wheels, which influence each other. If you turn one of the wheels, the…

10428 Phänomen

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…

11985 Haupt

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…

11982 Detail

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…

11973 Detail

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…

11979 Detail

Electrostatic dance

Polystyrene ballet. A plastic plate is rubbed against a leather surface and thus electrostatically charged. The plastic plate is then placed on a copper…

11978 Hauot

Emotion detector

Measuring skin resistance. The skin resistance is influenced by the subject's emotions: the stronger the emotions, the lower the resistance. Here, the skin…

11972 Haupt

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…

11962 Haupt

Feeling current

How strong is the effect of electricity? Here you can feel the sensation of electric current. To do this, you place two fingers on two contacts and increase…

11957 Detail

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…

11974 Detail

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…

11968 Haupt II

High-voltage slide

Triboelectricity. A slide and its platform stand on several large insulators. Anyone who slides down is electrostatically charged. If you then touch the…

11963 Phänomen

Human electrical circuit

Current flows through you. Several cubes with metal surfaces are placed near a larger cube. If you connect the surfaces of the cubes with your body, current…

11975 Haupt

Inner magnetic structures

Magnetic Domains under the Microscope. With the help of a microscope, the magnetic structures ("domains") inside a magnetisable platelet are made…

11958 Phänomen

Kneading with magnets

Attractively repulsive. In a bowl there are two strong horn magnets and a large quantity of small iron discs. The iron discs become magnetised near the…

11967 Phänomen

Luminous sculptures

Three dimensional circuits. Two contacts are attached to each of three stations, which can be connected with the help of magnetic rods and iron balls. The…

11991 Detail

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…

11983 Haupt

Magnetic balance

Floating through diamagnetism. Underneath a large ring magnet is a transparent box with a small magnetic cube and a base made of graphite. At exactly the…

11984 Haupt

Magnetic building blocks

Unconventional building blocks. There is a magnet in each of the different building blocks. Depending on the position of the poles, the building blocks can…

11965 Haupt

Magnetic clouds

Fascinating iron dust. In an aquarium there is fine iron powder that can be attracted from the outside with a magnet. The iron powder can thus be pulled up…

11992 Haupt

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…

11959 Haupt II

Magnetic repulsion

North pole against north pole. A slight change in the distance between two magnets has a major effect on the force between them. The closer they come, the…

11970 Haupt

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…

11961 Illustration

Pedal generator

Generate electricity yourself. The pedal generator can make you sweat quite a bit just to boil a sip of water. How much (pedal) power do you think it takes…

11964 Detail

Pins in a magnetic field

Reverse the polarity of the earth. Inside a transparent sphere is a very strong magnet. Iron pins can be held or placed outside the sphere. These align…

11977 Detail

Plasma columns

Influence the clouds of mist. A red glowing plasma is generated in two glass columns by an electric field. If you touch the column, you change the electric…

11987 Detail

Rotating magnets

Hovering through rotation. One magnet is set into rapid rotation. If you now approach a second magnet to the rotating one, the second one starts to rotate as…

11953 Haupt

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…

11988 Detail

Solarmobile

Light becomes electric energy. The elements in this mobile each contain a solar cell and an electric motor. If you point the light of a lamp at one of the…

11956 Haupt

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…

11980 Phänomen

Superconductivity

Hovering in the cold. Together with a Technorama employee, various experiments with superconductors can be carried out here.

11986 Phänomen

Swimming with the current

Single-cell organisms swim around in a chamber under a microscope. At the push of a button, the chamber can be put under voltage. The single-celled organisms…

11971 Haupt

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…

thema-Links

Electricity

Electricity and magnetism

Elektromagnetismus

Physics

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10124 Haupt

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10210 Phänomen II

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