H  
Natural Laws
 
 
Aristotle-vs-Galileo
                           
 

Aristotle . . .on motion


Natural Motion
straight up and/or straight down

Violent Motion
imposed motion

      
                               
      1) Objects of different weights fall to the ground in the same amount of time (at the same acceleration).
2) Once an object is moving, no force is needed to keep it moving.(Friction is a force)		    
                               
     
                               
    The Galileo Project  
                               
          What is Mass?
Inertia
Stuff
F=ma
 
                           
  Copernicus
                           
 
Ptolemy's System

            
       
Copernicus' Proof
    
   
             
                           
      The System works! Almost!                  
                           
      Science is beginning to find its place. Scientists are using observations, reasoning and mathematics to discover the natural phenomena.
Superstition and religious dogma are having to reconcile their beliefs.		    
                           
      Dark Energy and Dark Matter, really?    
                           
    Newton Rules  
                               
     
MATHEMATICAL PRINCIPLES
OF
NATURAL PHILOSOPHY
  
                     
             
                     
          BBC
Newton's Physics 		   
                       
                               
        "I have not yet been able to discover the cause of these properties of gravity from phenomena and I frame no hypotheses... It is enough that gravity does really exist and acts according to the laws I have explained, and that it abundantly serves to account for all the motions of celestial bodies.
    That one body may act upon another at a distance through a vacuum without the mediation of anything else, by and through which their action and force may be conveyed from one another, is to me so great an absurdity that, I believe, no man who has in philosophic matters a competent faculty of thinking could ever fall into it." Newton