Introduction: Mini Rail Gun
This is just a small-scale version of a magnetic rail gun. it moves a set of connected magnets across electrically charged rails. If you had larger magnets and a higher voltage it could bend the connecting bar and be somewhat like a cannon.
supplies:
cardboard
aluminum foil
wire cutters
wire coat hanger
glue
wire
9 volt battery
2 disk magnets
tape
Step 1:
Cut your cardboard about 6 inches wide, and 10 inches long. Then glue 2 strips of foil to the cardboard long ways, but not touching. leave about 2 inches hanging of the end of your cardboard.
Step 2:
Now, take the 2 wires and attach one end each to the battery using tape. Then take the other free ends and tape them to the ends of the foil.
Step 3:
Take your coat hanger and cut a pice that reaches about to the middle of the foil strips, mine is about 3 inches. Now you have to make the ends flat so the magnets will be strait. i used a hammer, but it is probably better to file them down.
Take the magnets and attach them to the ends of the wire. The polarity has to be facing opposite directions.
Step 4: Finished!!
Participated in the
Kinetic Sculpture Design Contest