Electromagnetic Battery Train Visible in Collection The variable temperature control makes

The variable temperature control makes it easy to adjust how much heat is applied

An updated version is in the works

shielding material

and a magnetic safety interlock

Electromagnetic Battery Train Visible in Collection The variable temperature control makesSend a battery racing through a coil, no motor required Drop a AAA battery into one end of a coiled length of bare copper wire, and it shoots out the other end under its own power. No switch, no motor, nothing plugged in. It looks like it shouldn't work. It does, every time. That motion comes from the same force principle behind electric motors and maglev trains. Neodymium magnets attached to each end of the battery touch the coil, completing a