A very nice interactive animation of length scales called "the Scale of the Universe". You can even turn your speakers on, as you travel from the smallest to the largest length scales.
There used to be another video (I cannot seem to locate it right now) which essentially did the same thing, except it was not interactive. The cool part of that video was that it showed quite vividly how most of space is empty at both ends of the lengthscale spectrum (atoms and outer space), and how matter is just like some tiny discrete dust sprinkled on, almost as an afterthought.
There used to be another video (I cannot seem to locate it right now) which essentially did the same thing, except it was not interactive. The cool part of that video was that it showed quite vividly how most of space is empty at both ends of the lengthscale spectrum (atoms and outer space), and how matter is just like some tiny discrete dust sprinkled on, almost as an afterthought.
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