Assertion: radar | /r/HasProperty | developed over year
Facets:
value: with input from many sources
type: OTHER
Source sentences:
text: Radar (for RAdio Detection And Ranging) was developed over the years with input from many sources, but it was Robert Watson-Watt, a Scottish physicist looking for a reliable method to help airmen locate and avoid approaching thunderstorms, who designed the first set put into practical use.