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...rocket-less space launches, magnetic levitation (maglev) vehicles and super guns.
Many years later, electromagnetic propulsion, powered by electricity and magnetism rather than fiery chemical reaction, is a reality though not yet ready for government or commercial production.
Electromagnetic propulsion, which can send an aircraft, satellite, shuttle, bullet or train zooming through the air or along a track, produces extreme temperatures and wear that create quite a challenge for researchers working to make devices that can be used consistently without becoming seriously damaged.