If you care to explain, referencing the appropriate physics, how an inductive loop detector works and why it will not respond to a non-ferrous metal, I'm all ears (eyes).

Otherwise we have it on the authority of a EE that they work just fine with aluminum, there's nothing special about steel or magnets other than the fact that they conduct electricity. I've provided real-world hands-on examples of how non-ferrous metals can interact with a magnetic field (and all detection of any kind is premised on interaction--if you can interact, you can detect). Or perhaps we shouldn't make reference to wheels, levers, or any of the other simple machines that seem to frequently play a roll in the world of cycling because that's science, not bikin'!

So what's the deal? How is it that aluminum doesn't doesn't trigger the detector apart from the fact that the detector is simply misadjusted. Sometimes my very ferrous rides don't trigger them either.