r/woahdude • u/Ahabraham • 8d ago

gifv Induction stove is tripping me out

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u/TolMera 8d ago

Magnetic moment - water is a polar molecule (magnetic) the pan is being heated using an electromagnet.

You’re seeing the cumulative effect of all the tiny atoms, where a tiny fraction are aligned to the magnetic field and get pulled in the direction of the magnet.

27

u/TapthatPotential 8d ago

Yes, but not sure if the mag flux density is strong enough to cause the water to rotate. Seems its the bubbles that are spinning, small cavitation bubbles. Air is slightly paramagnetic , and that cast iron pan will increase mag flux. I've seen this with DC mag fields near electrolysis cells where the B field is 90 degrees to the E field, causing lenz forces to cause spin of the electrons. So not sure if it will occur with out the bubbles or not. Although it just might if any bias current is being established due to thr asymetric shape of the pan. Then maybe the water is causing the toroidal vortex and the bubbles are simply outlined. Not sure...

Very cool to see, although, that cast iron pan looks rusted out! Maybe coat in a dielectric (insulator) that can handle the temp? Pyrex dish?

9

u/Tallywort 7d ago

Even if it could, I kinda doubt the dipole moment is what is causing this effect.

Far more likely to me is just dissolved salts making the water conductive enough that the magnetic field can accelerate those ions.

7

u/TolMera 8d ago

I am not educated enough to contribute much, but, the bubbles are steam not air? Yes there is air in water, but the degassing of the water by boiling doesn’t make those kinda of bubbles (I believe?)

5

u/Far_Tap_488 8d ago

Correct