translation.en: And I thought about this child's toy -- hence, the title of my talk -- and I wondered if you could use the same physics that makes that thing spin 'round in the child's radiometer, to levitate particles into the upper atmosphere and make them stay there.
translation.zh: 我也考虑过 小孩的玩具——因此，这就是我演讲的题目—— 我在想我们能不能用那种可以让物质在小孩子的辐射测量仪中旋转起来的同样的物理学原理 把粒子送入高层大气， 并且让粒子一直待在那儿。