The eddy current tube - AstroMedia
Product number:
467.WSR
Pre-cut cardboard kit for a magnetic sphere drop tube to illustrate eddy currents
Is it falling or not?
An upright aluminium tube and two seemingly identical metallic spheres allow an astonishing comparison: one sphere falls through the tube at lightning speed. The other, on the other hand, takes 10 seconds to travel the 60 cm. The secret: the second ball is a strong magnet, and although the aluminium tube is not magnetic, it generates eddy currents as it falls, the magnetic field of which slows it down. An important principle that we often encounter unrecognised in everyday life, from electric motors to ICE brakes. Try it out and be amazed!
| Aspiration scale: | Medium |
|---|---|
| Time Line: | 3,0 Hours |
Product information "The eddy current tube - AstroMedia"
Construction cardboard, pre-punched and printed, for assembly
2 sheets of DIN A4 aluminium tubing,
one stainless steel and one neodymium magnetic sphere, Ø 15 mm each and accessories
With detailed assembly instructions
Size of the assembled item: approx. 62.2 x 13.1 x 9.6 cm (H/W/D)
one stainless steel and one neodymium magnetic sphere, Ø 15 mm each and accessories
With detailed assembly instructions
Size of the assembled item: approx. 62.2 x 13.1 x 9.6 cm (H/W/D)
Bau- und Gebrauchsanleitung: Deutsch
What you still need for assembly
> a cutting board
> a sharp cutter knife, e.g. craft knife
> a good all-purpose glue, e.g. craft glue
> some fine sandpaper, e.g. Sand-Tinkering File
> a pair of sharp scissors