3 ms·
I accidentally discovered eddy currents not too long ago, while mindlessly playing with a copper CPU heatsink and an HDD magnet (geeky, right?) I expected coppe
by mrb 15y ago
I accidentally discovered eddy currents not too long ago, while mindlessly playing with a copper CPU heatsink and an HDD magnet (geeky, right?) I expected copper to be ferromagnetic, but was surprised when I felt this dragging force that neither repulsed nor attracted the magnet. Curious about this discovery, it took me a few minutes of googling to eventually learn about eddy currents... I am surprised I never learned about them at school.
- acgourley 15y agoshould have been in any "AP Physics" highschool class or college level classical physics class.
- georgieporgie 15y agoIt wasn't mentioned in my non-AP HS physics class, nor in my normal college physics class. :-(
- yread 15y agoThey told us about it when mentioning why cores of inductors are made of layered steel and not a single piece. That apparently keeps the eddy currents at bay.