ferrous

Copper isn't ferrous, magnets can't stick to it.

The same way non-ferrous copper is moved by a magnet if it has current flowing through it.

It's a less impressive demo if the pipe is made out of something ferrous, like cast iron.

The catch is that anything you run current through becomes magnetic, even though its not ferrous.

The danger for humans isn't just 2 magnets, it's 1 magnet + something ferrous, of which a magnet is just one possibility.

> As far as the video thing, the only reason I can imagine is because MRIs are basically huge magnets so they have to build the whole thing out of non-ferrous materials.

Currently a conveyor belt running over a magnetic drum is used to remove ferrous materials, but the magnetic field strength is insufficient.

I thought one is not supposed to use a cell phone in the elevator because it doesn't work because elevators are made out of ferrous metals and hence are effectively Faraday cages.

We figured out how to get accurate hysteresis loops for ferrous samples using a breadboard, an ancient laptop, a few clicks of Cu wire and a bucket of miscellaneous components.

Essentially, researchers found numerous sloping terrain sites with ferrous and ferric spectrographic signatures that have been rising and falling with temperature.

It's defined in section 1861:Every person in this state engaged in the business of buying, selling, trading in, or otherwise acquiring or disposing of junk or used or secondhand property, including but not limited to jewelry, silverware, diamonds, precious metals, ferrous materials, catalytic converters, auto hulks, copper, copper wire, copper alloy, bronze, zinc, aluminum other than in the form of cans, stainless steel, nickel alloys, or brass, whether in the form of bars, cable, ingots, rods, tubing, wire, wire scraps, clamps or connectors, railroad track materials, water utility materials, furniture, pictures, objects of art, clothing, mechanic's tools, carpenter's tools, automobile hubcaps, automotive batteries, automotive sound equipment such as radios, CB radios, stereos, speakers, cassettes, compact disc players, and similar automotive audio supplies, used building components, and items defined as cemetery artifacts is a secondhand dealer.