21. Shelton also experimented with linear motors to move the steel through the mill and constructed a magnetic stacking machine. 22. Most linear motors in use are LIM ( linear induction motor ), or LSM ( linear synchronous motor ). 23. Outside of public transportation, vertical linear motors have been proposed as lifting mechanisms in deep drafting, and cable forming. 24. Many designs have been put forward for linear motors , falling into two major categories, low-acceleration and high-acceleration linear motors. 25. As with rotary motors, linear motors frequently run on a three-phase power supply and can support very high speeds. 26. A decade later, he was invited to present an update for their November, 2009 issue on linear motor -powered transportation. 27. Many designs have been put forward for linear motors, falling into two major categories, low-acceleration and high-acceleration linear motors . 28. High-acceleration linear motors are typically used in studies of hypervelocity collisions, as weapons, or as mass drivers for spacecraft propulsion. 29. In 2005, the group made their major label debut under Tokuma Japan Communications with the single " Linear Motor Girl ", 30. Linear motors are commonly found in many roller-coasters where the rapid motion of the motorless railcar is controlled by the rail.
