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How do flocking birds and schools of fish move? New research offers crystal-clear answer - Phys.org

AI Briefing

  • • Researchers have found a way to explain the movement of bird flocks and schools of fish.
  • • Their new theory uses a Hamiltonian description of non-reciprocal interactions.
  • • The theory challenges Newton's third law and could improve models of flocks, crowds, and cells.

Context

Scientists have found a way to explain the movement of flocking birds and schools of fish. New research provides an answer to this question. The movement of bird flocks was found to "defy" Newton's third law.

The discovery of how these groups move matters because it could sharpen models of flocks, crowds, and cells. A new theory has been developed to explain this movement, which is described in a Hamiltonian description of non-reciprocal interactions.

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