kuhntext

Pre-science

 

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Normal science

 

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Crisis

 

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Revolution

 

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Normal science

 
 
 

No theories as yet.

 

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A theory becomes dominant.

 

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Dominant theory  in trouble.

 

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New theories are proposed.

 

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A new theory becomes dominant.

 
 

No paradigm

 

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First paradigm

 

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Crisis

 

I

 

Competing paradigms

 

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New paradigm

 
 
 

Babylonia.

 

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Greeks - geocentric cosmos.

 

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Problems with geocentrism.

 

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Copernicus - heliocentrism.

 

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Heliocentrism becomes orthodox.

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