1. The symmetry of complex conjugation is called time-reversal symmetry . 2. The Nanson method satisfies and the Baldwin method violates reversal symmetry . 3. Electric stirring explicitly breaks time-reversal symmetry . 4. However, note that using another rounding method could prevent the failure to Reversal symmetry . 5. Majority judgment fails reversal symmetry , but this is only because of the rounding used. 6. :A cosmological constant by itself doesn't break time translation or time reversal symmetry . 7. :A closely related way to see through this, is to consider time reversal symmetry . 8. Its distribution is invariant under orthogonal conjugation, and it models Hamiltonians with time-reversal symmetry . 9. It does not satisfy the Condorcet loser criterion, the independence of clones criterion or reversal symmetry . 10. The underlying reason for the difference in dispersion relation is that ferromagnets violate time-reversal symmetry .