Assertion: radio telescope's antenna | /r/HasProperty | a world war ii radar
Facets:
value: formerly
type: TEMPORAL
Source sentences:
text: This group used the principle of a sea-cliff interferometer in which the antenna (formerly a World War II radar) observed the sun at sunrise with interference arising from the direct radiation from the sun and the reflected radiation from the sea.
text: This group used the principle of a sea-cliff interferometer in which the antenna (formerly a World War II radar) observed the sun at sunrise with interference arising from the direct radiation from the sun and the reflected radiation from the sea.