실제로, 1년 반쯤에 수위가 가득 찼던 적이 있었는데요, 지구가 돌때 내부에서 흔들리는 것을 측정할 수 있었습니다.
In fact, when it did actually fill with water a year and a half ago, they were able to measure a wobble within the earth as it was spinning.