Assertion: zeppelin | /r/CapableOf | measure variation
Facets:
value: in the earth’s magnetic field
type: LOCATION
Source sentences:
text: In July, 1931, Graf Zeppelin carried a team of scientists from Germany, the United States, the Soviet Union, and Sweden on an exploration of the Arctic, making meteorological observations, measuring variations in the earth’s magnetic field in the latitudes near the North Pole, and making a photographic survey of unmapped regions using a panoramic camera that automatically took several pictures per minute.