Observing waves formed by an oscillating rod  | 
        
- Water tank
 
Material: Acrylic board Height: 59cm Width: 58cm Depth: 10cm - Working fluid
 - Stratifield salt water.
 - Visualization
 - Moiré technique.
 
The vertical striped patterns with 1mm and1.1 mm intervals were used. The two patterns were placed 30cm apart.3)- Experimental process
 - A 4cm diameter rod was hung by fishing line in the stratified fluid, and oscillated up and down. The waves thereby created were viewed from the side.
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