translation.ar: في الحقيقة عندما امتلئ بالماء قبل سنة و نصف تمكن العلماء من قياس تذبذب ضمن الأرض خلال دورانها.
translation.en: 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.