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Showing posts with label philosophy of physics. Show all posts
Showing posts with label philosophy of physics. Show all posts

Wednesday, August 19, 2009

Physics by Aristotle

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To know a thing involves understasting first principles.
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Matter is potentially,form is actually ;
to each form there corresponds a special matter.
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There are four types of causes :
1.the material cause -matter- ;
2.the formal cause -the kind- ;
3.the final cause -the purpose- ; and
4.the efficient cause -that which initiates change- ;
in addition,
5.change and
6.spontaneity
are kinds of causes.
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Nature,defined as a principle of motion and change,
is a cause that operates for a purpose.
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The infinite is potential,never actual.
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Place is the innermost motionless boundary of what contains ;
Time is the number of motion in respect to before and after.
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There are three kinds of change :
1.qualitative,
2.quantitative,and
3.local.
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There must be an UNMOVED MOVER which by eternal rotary motion imparts motion to all things.
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