Assertion: complex periscope | /r/CapableOf | use advanced fiber optics
Facets:
value: of mirrors
type: OTHER
Source sentences:
text: The periscope is used in the submarines to see the events that are happening behind a wall or a barrier, and some submarines use complex periscopes that use the prisms or advanced fiber optics instead of mirrors to provide them the magnification, Complex periscopes operate on submarines and in different fields of science.