Water compass

We define a "water compass" as a compass made by placing a magnet floating on a water surface to reduce friction and allow it to align with the Earth's magnetic field. This is a common children's scientific experiment.

Video 24.

Bar magnet aligns with Earth's magnetic axis by KClassScienceChannel

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 Ancestors (9)

Compass
Magnet
Material property
Materials science
Condensed matter physics
Physics
Natural science
Science
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