By Laura Brownstead
An electromagnetic roller coaster launch is a system that, using electrically induced  magnetic fields, propels roller coaster trains forward and slows down the trains, depending on the type of launch. Although these launches are relatively new and are typically used with steel coasters, electromagnets are used in a variety of roller coaster types, including wooden structures! (see Fig. 1)
Figure 1. View of Lightning Rod LSM Launch at Dollywood Amusement Park (CoasterFanatics)
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