He knew that a stick stuck in the ground in Alexandria at the same time and the same day, at noon, the sun's zenith, on the solstice, the sun cast a shadow that showed that it was 7.2 degrees off-axis.
같은 시간, 같은 날 정오, 태양이 절정인 최고 지점일때 7.2도 기울어진 그림자를 만든다는 것이었습니다.