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By shooting high-energy electrons to a propellant atom (neutrally charged), it removes electrons from the propellant atom resulting in the propellant atom becoming positively charged. The positively charged ions, running at high voltages, are guided through positively charged grids that contain thousands of precisely aligned holes. The aligned positively charged ions accelerate through a negatively charged accelerator grid that further increases their speed, up to 90,000 mph. The momentum of these ions provides

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