- Water tank 
 
                
                        
                            | Material: | 
                            Acrylic board walls 
                            1mm thick pyrex glass base and cover | 
                         
                        
                            | Height: | 
                            6cm  | 
                         
                        
                            | Depth:  | 
                            20cm | 
                         
                        
                            | Width:  | 
                            20cm | 
                         
                     
                    The tank was built like a set of nested
                    boxes, so by changing the middle box, the
                    depth of the working fluid can also be
                    changed.3)
                     
                 
                - Working fluid 
 
                - Water 
 
                -  
 
                - Visualization 
 
                - Liquid
                    crystal capsules were used to make the
                    temperature visible. 
 
                -  
 
                - Experimental process 
 
                - After placing the water tank on the rotating
                    table, by putting cold water in the
                    section above the working fluid to be
                    observed, and warm water below it, a
                    temperature gap is caused, which results in
                    convection. 
 
             
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