How to Charge a Cell Phone on Train Tracks

If you're ever lost or hurt out in the middle of nowhere with a dead cell phone, you might be able to "flag" down help as long as you're near some railroad tracks. Some train tracks carry a small electric charge as a means of detecting other trains for signaling or for detecting blockages; a metallic object lain across the rails will complete a current, and will alert the rail company that there is a potential obstruction. So if you're ever in a bind and need some help asap, you can lay a metallic object across the tracks, or connect them together with some scrap wire or jumper cables. The... more

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