Double Slit - Physical Model

Update: This model has be upgraded with a new wave connection design in Version 2 I have always wondered if something that I had seen in simulations and animations could be made as a physical model that students could interact with and investigate. This model sweeps out a pattern made by two coherent waves as they “interact” with each other with constructive and destructive interference. While the full amplification of constructive interference isn't completely represented with this design,