Behavior of few bodied systems. They made a sine wave or spiral
  rather to achieve a simulated monopole. Balance. The Zen of
  Boltzmann.

  Like driving a car in a perfect straight line requires back and
  forth small muscle movements.

  " Using this device, the researchers trapped a cold gas cloud of
  rubidium atoms in such a way that the gas behaves in "monopole
  mode." In this mode, the temperature and cloud size of the gas
  oscillate with opposite phases*as one increases, the other
  decreases, and vice versa."