TED演讲:如何看到不可见的运动听到沉默的声音(3)
Maybe we could use those motions to tell us something about our thoughts or our emotions. 也许这可以告诉我们,我们的想法或情绪。 We can also magnify small mechanical movements,like vibrations in engines,that can help engineers detect and diagnose machinery problems,or see how our buildings and structures sway in the wind and react to forces. 我们同样也可以方法微小的机械运动,...