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	Frey Scientific Buzzer in a Vacuum - 8 x 9.5 inches
	
	
					About This Item
				
	
				Description
Frey Scientific Buzzer in a Vacuum is a updated version of the bell in a jar unit and helps in demonstrating that sound waves do not propagate in a vacuum. It requires 0.25 in tubing. 9.5 in Unit with 8 in dia has buzzer leads that are connected to a dry cell and the air nipple to any laboratory vacuum pump. Since air is evacuated from the jar, the sound of the steady buzzer diminishes in intensity.
			
			
				Shipping Type:
			
			
				parcel
			
		
	
		
			
			
				Free Shipping:
			
			
				true
			
		
	
 Specifications
    
	
		
			
				Maximum Grade Level:
			
			
					
						Grade 12
					
				
		
	
		
			
				Weight:
			
			
					
						2 lb
					
				
		
	
		
			
				Maximum Age:
			
			
					
						18 years
					
				
		
 
			         
				 
				 
			
 
 