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History of the Universe
Terms in this set (149)
According to Alan Guth waht are the two interpretations of Hubbles work?
We are hte center o fhte universe w/everything moving outward from us like spokes on a wheel.THe singularity of instanc eof Big Bang is plausible w.this theory. ALSO Homogenous Expansion: All galaxies are about equal and are spread out uniformly through space.There is no center and and no edges.No matter which galacy we are on the other galxies we would see all the others as moving away from us at the same rate.
According to Aristotle what would happen if a void existed and something was thrown into it.
It would be stuck with nothing ot be drawn to.
Mesopatamian god who ruled the sky
Aristotles argument re: voids in universe.
Everything is drawn towards its bacis elemnet,there could be no void because nothing would be drawn toward a void.He would state things like this then provide no steps involved to come to that conclusion,only his reasoning.
Aristotles basic substances
Air,fire,water and "something more divine". Fire moves upward.Earth objects move downard towards the center of stationary earth.Throw rock into air and it pushes air but falls back to earth when drawn toward it's natural place
Aristotles definition of motion
Fulfillment of potential. Objects change position as well as move toward their natural place in the universe,
Aristotle's explanation of motions of objects
Objects move because they have tendency to return to their proper place in the universe.All movement affects other objects by movement of air attaching them.
Aristotles "final cause" (purpose) of an object
All movement affects other objects by movement of air attaching them.Circular movmeent is natural to some elements, other then earth, wind,air,fire whose movements are much more divine,existing prior to straight movement.To understand the "Why" sis to know the casue.
Aristotles mistaken notions about the cosmos.
All things mnove toward their basic elemnet.Objects of different mass fall at different speeds. He had no concept of ratial velocity.Locomotion,one object moving another had to be in contact iwth it in some way,even if jsut moving the air,to make the other object move.No concept of friction.
Aristotles philosphical view of the "final cause"of an object.
To understand the "Why" is to understand the cause.
Aristotles view on mathematics
Numbers and mathematics explain all things
Aristotle view of Cosmos
Earth is center and does not move.There is a world of four elements below moon and a supralunar world above moon.No void or space exists.
Basic elements in Aristotles universe
Air, fire, water.
Before science what were the "gods"belived to have done
Believed to have been responsible for creation and order in the universe.
Can a finite universe have a center?
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