Newton's disk

例句：

1. 1. Thescientist used a Newton's disk tomeasure the distance between the stars.
   这位科学家使用一个牛顿的圆盘来测量星星之间的距离。
2. 2. The ancient Greeks believed that theEarth was a perfect circle, which issimilar to a Newton's disk.
   古希腊人相信地球是一个完美的圆形，这与牛顿的圆盘相似。
3. 3. In theearly days of space exploration, scientists used Newton'sdisks to calculate the distancesbetween planets.
   在太空探索的早期阶段，科学家们使用牛顿的圆盘来计算行星之间的距离。