Simulations:
30.1. Diffraction
30.2. Group Velocity
30.3. Huygens
30.4. Lissajou
30.5. Longitudinal Transverse
30.6. Microwaves Youngs Slits
30.7. Phasors
30.8. Red Shift
30.9. Reflection Transmission
30.10. Ripple Tank
30.11. Single Slit Diffraction
30.12. Slinky
30.13. Standing Microwaves
30.14. Stationary Waves
30.15. Water Diffraction
30.16. Wave Interference
30.17. Wave on a String
30.18. Wave Speed
30.19. Youngs Slits