A railgun is a type of electromagnetic weapon that uses magnetic fields to launch projectiles at high speeds. It operates by passing a strong electric current through two conductive rails, creating a magnetic field that accelerates a projectile along the rails. This technology can potentially deliver projectiles with greater velocity and range compared to traditional firearms. Railguns are often discussed in the context of military applications, where they could provide advantages in naval warfare and long-range targeting. Research and development are ongoing, with organizations like the U.S. Navy exploring their feasibility for future weapon systems.