Graphite, the main component of pencil lead, is considered one of the best subst...
A diamagnetic substance is slightly repelled by magnetic fields.
With a strong enough magnet, the diamagnetic force can override gravity, and the substance will float in the air.
Graphite, the main component of pencil lead, is considered one of the best subst...
Why it matters: Graphite, the main component of pencil lead, is considered one of the best subst...
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