magneticDuck·4년 전·discussThat's not an accurate explanation, since the Oberth effect also holds for a fictitious rocket that doesn't lose mass when it thrusts.
magneticDuck·4년 전·discussYour fuel is measured in delta-V—the velocity you can accelerate by in an inercial reference frame—and kinetic energy scales with the square of your velocity.
magneticDuck·6년 전·discussJust take all the theorems about prime numbers, multiply them, and ... uh ...