Assertion: principle | /r/CapableOf | follow in the case of refraction
Facets:
value: from huygens' construction
type: LOCATION
value: to an anisotropic one
type: TRANSITIVE-OBJECT
value: from an isotropic medium
type: OTHER
Source sentences:
text: In fact Laplace was aware that Fermat's principle follows from Huygens' construction in the case of refraction from an isotropic medium to an anisotropic one; a geometric proof was contained in the long version of Laplace's report, printed in 1810.