epicycle

• Окружность, которая катится внутри или снаружи другой окружности, порождая кривые, известные как эпициклоиды или гипоциклоиды.

A circle that rolls either inside or outside another circle, generating curves known as epicycloids or hypocycloids.

1. Rolling circleC2formalscientific

   A circle that rolls around the inside or outside of another fixed circle, generating a curve known as an epicycloid or hypocycloid.

   Вращающийся круг

   • The path traced by a point on an epicycle is a complex curve.
   • Ancient astronomers used epicycles to explain planetary motion.
   • The gear mechanism relies on the principle of an epicycle.