on the other hand

Very large disc ferrite magnet (Ø7 cm

der kan bruges til mange andre ting end at skille magneter mere sikkert ad

But rust will only be an aesthetics issue

making it a perfect match for purple/light pink dresses and sweaters

Jernspåner til magnetiske eksperimenter (200 g.) Auto-translated (SE) on the other handUse iron filings to visualize a magnetic field the iron powder is attracted to the magnet and settles in a new, interesting pattern on top every time. NOTE! Remember to use a thick piece of paper or similar between magnet and iron filings! It is difficult to remove iron powder from a permanent magnet again. You therefore need a layer inbetween such as cardboard or a piece of glass, so that you can create a distance between the magnet and the iron