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			:p 
				
					
					- whoosh
- Thread
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				educational video
			
		
			
				history of technology
			
		
			
				prehistoric technology
			
		
			
				wheel invention
			
		
	
						
- Replies: 1
- Forum: The Water Cooler
 
 
 
 
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			:cool: 
				
					
					- whoosh
- Thread
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				air conditioning history
			
		
			
				ancient cooling technology
			
		
			
				history of technology
			
		
			
				hvac myths
			
		
	
						
- Replies: 1
- Forum: The Water Cooler
 
 
 
 
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			:shocked::up: 
				
					
					- whoosh
- Thread
- 
							
	
		
			
				ancient engineering
			
		
			
				ancient innovations
			
		
			
				ancient technologies
			
		
			
				history of technology
			
		
	
						
- Replies: 1
- Forum: The Water Cooler