Simple electric train hack from Battery and Wire

  Making an electromagnet is really as simple as wrapping some wire around a toe nail and taping the cord to both ends of your battery. When you’re accomplished, you can pick in place some paper clips – it shows the theory well, but it might use some more oomph. “Amazing Science” has done just that, making a good “electric train”. Most that’s needed is some coiled copper wire, a battery and magnets thin enough to install through the coils. The magnets snap onto both ends on the battery. Put the…

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