FREE BOOKS

Author's List




PREV.   NEXT  
|<   62   63   64   65   66   67   68   69   70   71   72   >>  
ee, as contracted with the _few_. We can conceive no reason that can be adduced in justification of the word _caloric_, as invented to distinguish the external cause of the sensation heat, which would not equally authorise the introduction of a technical term in this instance. 12 For abstractions are the conditions and only subject of all abstract sciences. Thus the theorist (vide Dalton's Theory), who reduces the chemical process to the positions of atoms, would doubtless thereby render chemistry calculable, but that he commences by destroying the chemical process itself, and substitutes for it a _mote dance_ of abstractions; for even the powers which he appears to leave real, those of attraction and repulsion, he immediately unrealizes by representing them as diverse and separable properties. We can abstract the quantities and the quantitative motion from masses, passing over or leaving for other sciences the question of what constitutes the masses, and thus apply not to the masses themselves, but to the abstractions therefrom,--the laws of geometry and universal arithmetic. And where the quantities are the infallible signs of real powers, and our chief concern with the masses is as SIGNS, sciences may be founded thereon of the highest use and dignity. Such, for instance, is the sublime science of astronomy, having for its objects the vast masses which "God placed in the firmament of the heaven to be for _signs_ and for seasons, for days and years." For the whole doctrine of physics may be reduced to three great divisions: First, _quantitative motion_, which is proportioned to the quantity of matter exclusively. This is the science of weight or statics. Secondly, _relative motion_, as communicated to bodies externally by impact. This is the science of mechanics. Thirdly, _qualitative motion_, or that which is accordant to properties of matter. And this is chemistry. Now it is evident that the first two sciences presuppose that which forms the exclusive object of the third, namely, quality; for all quantity in nature is either itself derived, or at least derives its powers from some _quality_, as that of weight, specific cohesion, hardness, &c.; and therefore the attempt to reduce to the distances or impacts of atom
PREV.   NEXT  
|<   62   63   64   65   66   67   68   69   70   71   72   >>  



Top keywords:

masses

 
motion
 

sciences

 
science
 

powers

 

abstractions

 

weight

 

chemical

 

chemistry

 

abstract


properties

 

quantitative

 
quantities
 

matter

 

quantity

 

process

 
instance
 

quality

 
attempt
 

heaven


reduce
 

firmament

 

cohesion

 

doctrine

 

seasons

 

hardness

 

specific

 

objects

 

thereon

 

highest


founded

 

impacts

 

dignity

 
physics
 
astronomy
 

sublime

 

distances

 
divisions
 

object

 

impact


mechanics

 

externally

 

bodies

 

relative

 

communicated

 
Thirdly
 

qualitative

 
exclusive
 

presuppose

 

evident