On Berkeley’s solution to the Barrovian case





standard divergence, anomalous divergence, geometrical theory, crucial anomaly, perception of distance


At the beginning of the 18th century, Berkeley believed an anomaly pointed out
by Isaac Barrow could be regarded as important evidence against the optical theories that
had been established and standardized thanks to the works of Kepler and Newton. In this
article, we want to show that Berkeley’s treatment of the Barrovian Case does not falsify
these theories. We will contend that the strategy used by Berkeley to resolve the anomaly by
alluding to a change of convention is a strategy that the classical theorist could use as well.
In other words, the classical theorist could also appeal to a change of convention to deal with
the problem.

Author Biographies

Carlos Alberto Cardona, Universidad del Rosario

Universidad del Rosario (Bogotá), COLOMBIA

Juliana Gutiérrez, Universidad del Rosario

Universidad del Rosario (Bogotá), COLOMBIA


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