**Third Law:** When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body. (Wikipedia)

See Also

**11.22 - Reciprocality of Dimensions and Music Intervals**
**12.00 - Reciprocating Proportionality**
**13.14 - Principle of Reciprocity**
**13.18 - Naturaly Occuring Reciprocity and Proportionality**
**13.20 - Principle of Reciprocity**
**3.12 - Reciprocating Duality**
**3.13 - Reciprocals and Proportions of Motions and Substance**
**6.1 - Reciprocal Radiations**
**7.3 - Law of Love - Reciprocal Interchange of State on Multiple Subdivisions**
**7.6 - Reciprocal Disintegration and Creation**
**7.7 - Reciprocal States of Matter and Energy**
**Balance**
**Figure 12.13 - Some Multi-Dimensional as Inverse and Direct Reciprocal Relationships**
**Figure 13.14 - Equilibrium as Reciprocal Forces**
**Figure 3.10 - Temperature Accumulates in the North and Cools in the South Reciprocally**
**inverse chirp z-transform**
**inverse fugue**
**inverse process**
**inverse progression**
**inverse relations**
**Inverse Square Law**
**inversion**
**Law of Duality**
**Multiplicative inverse**
**Newton Laws of Motion**
**One Balanced Whole and Two Reciprocating Dynamics**
**Ramsay - Nature's Inverse Process for the Minor Genesis**
**reciprocal**
**reciprocal progression**
**Reciprocating Duality**
**Reciprocating Proportionality**
**reciprocation**
**Reciprocity**
**Rotation and Revolution are Reciprocals**
**seesaw**