Horseshoe magnet — horseshoe magnet field simulation
Horseshoe magnet with two parallel poles. Filings trace the arched field between the tips and drift toward the nearest pole.
How it works
Horseshoe magnet at the cursor — two parallel poles facing the same way. Filings trace the classic arch field between and around the tips and drift toward the nearest pole; speed ∝ field strength. Absorbed filings respawn at a random screen edge.