#  Harvard Logic Colloquium: George E. Smith (Tufts U.), Theory-Mediated Measurement of Interlinked Constants Evidence of a Different Kind? 

 



####  calendar\_today Date and Time 

 **November 20, 2019** 

 04:30PM - 05:30PM EST 

####  pin\_drop Location 

 **Logic Center, Room 420, 2 Arrow Street**  



 

 



 

 Harvard Logic Colloquium: George E. Smith (Tufts U.), Theory-Mediated Measurement of Interlinked Constants Evidence of a Different Kind?

 In his landmark paper of 1900 in which he derived his law of blackbody radiation from Boltzmann’s theory of entropy, Planck  
invoked as evidence inferred values for a series of theoretically interlinked microphysical constants none of which had been  
measured with precision before. In doing so he initiated a kind of evidence that had never been successfully deployed before,  
yet quickly came to be central to modern microphysics. The talk will examine the distinctive logic underlying this kind of  
evidence and sketch the history of its becoming increasingly authoritative before ending with questions first about just what  
it is evidence for and finally about the extent to which the measurements achieving extraordinarily precise values of the  
constants can legitimately be said to have gained experimental access to specifics of the microphysical realm.



 

 

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