Received signal strength indication
Physics wp
Regla de la mano derecha
Regla de la mano izquierda
Resonance
Reynolds number
Right-hand rule
Rotation
Rotation around a fixed axis
Schrödinger equation
Schrödinger's cat
SI base unit
Solar time
Spacetime topology
Special relativity
Speed of sound
Standard Model
Standing wave
Streamlines, streaklines, and pathlines
String theory
Stroboscope
Subatomic particle
Superlumínico
Tensor deformación
Theory of relativity
Time
Trajectory
Transverse wave
Ultrasonido
Ultrasound
Ultraviolet