This principle was famously demonstrated by Galileo Galilei some 400 years ago when he simultaneously dropped cannon and musket balls, and balls made of gold, silver and wood, from the Tower of Pisa.
这一法则是在大约400年前，由伽利略•伽利雷那个著名的比萨斜塔实验所证明的，当时他在塔顶同时释放球型炮弹和毛瑟枪子弹，以及由金、银、木头制成的小球。
Some production sketches by illustrator Joe Johnston had the laser cannon turret supplemented by a lookout tower very similar to the ones found on the Yavin base in a New Hope.
画家乔·约翰斯顿的某些制作草稿为这种激光炮塔添加了一个了望塔，非常类似《新的希望》中雅文基地里的那个。
Who put the reveille cannon on top of the Clock Tower?
谁将起床号大炮放到了钟塔顶上？
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