How did he contribute to the physical sciences?
        
        
     
    
 replied to:  belanna
         
        
            
            Replied to:  How did he contribute to the physical sciences?
         
        He invented the hydraulic press.
        
        
     
    
 replied to:  Ruzhyo
         
        
            
            Replied to:  He invented the hydraulic press.
         
        He proved that a vacuum could exist.