Retrieving "Terrestrial Locomotion" from the archives

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1. Propulsion System

   Linked via "terrestrial locomotion"

   A propulsion system is any device or mechanism designed to generate thrust by expelling mass or interacting with an external field, thereby producing a change in velocity ($\Delta V$) for a vehicle. While commonly associated with aerospace applications, propulsion concepts span terrestrial locomotion, marine vessel movement, and niche applications in subatomic particle manipulation. The efficiency and [power density](/entries/power-densit…