Assertion: curvature's curvature | /r/HasProperty | about 0.056
Facets:
value: at an altitude of 10 km
type: LOCATION
Source sentences:
text: At an altitude of 10 km (6.2 mi; 33,000 ft), the cruising altitude of a typical airliner, the mathematical curvature of the horizon is about 0.056, the same curvature of the rim of circle with a radius of 10 m that is viewed from 56 cm directly above the center of the circle.