John's Physics and Math Apps

sound color multiplication fieldmapping
Sound Color Mixing Multiplication Patterns Equipontial and E-Field Mapping
(Beta version - chrome only)
hidden shapes hidden shapes  
Find the hidden object Huygens' Principle;  
Contact me at to talk about physics education, or to sponsor me to create more apps.
All apps here subject to Creative Commons Licensing. Feel free to use them for non-commercial purposes.