Assertion: krypton's gravity | /r/HasProperty | set to that of krypton
Facets:
value: during the silver age
type: TEMPORAL
Source sentences:
text: During the Silver Age when Superman had the bottle city of Kandor the atmosphere and gravity in the bottle were set to that of Krypton and whenever any Earth people visited the city (like Lois or Jimmy) they had to wear special boots to counteract the higher gravity within the city or they would have fallen to the floor and not be able to rise.