Here’s something a bit easier than the motor from the last email.
A simple way to build your own electromagnet!
…which is pretty cool:
1. Take some insulated wire.
2. Wind it around a screw, maybe about 50 times.3. Connect a big 1.5 V flash-light battery
Place it over some small metallic objects to test it.
Here’s an image:
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http://www.build-electronic-circuits.com/wp-content/uploads/2015/06/IMG_2749.jpg
Note: Not all metals are magnetic. For example copper coins won’t be attracted to the magnet.
Keep on Soldering!
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