standish
Cast Iron
- Joined
- Nov 12, 2003
- Location
- Boise, ID, USA
Way back in grade school the teacher did a "science experiment" wherein she wrapped a toilet paper tube with copper wire and connected the wires to a 6V dry cell via a knife switch. Then she proceeded to demonstrate that a screwdriver could be inserted in the coil and the switch thrown to activate the current, and the screwdriver would be magnetized. Then she showed us that doing the same thing again would demagnetize the screwdriver. Seemed pretty simple at the time.
Does anyone here know if something like this can be done on a grander scale to demagnetize things around the shop? Like maybe use a battery charger as a source of current. Maybe a source of how-to instructions?
Does anyone here know if something like this can be done on a grander scale to demagnetize things around the shop? Like maybe use a battery charger as a source of current. Maybe a source of how-to instructions?