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heatherl18's picture

Brownian motion

The idea that everything is made up primarily of space as you go down the size scale is hard to conceive of, since we typically think of ourselves and other bounded "improbable assemblies" as solid. The idea that these particles are constantly moving and changing components of what seems like an unyielding surface is harder to grasp still. What is it that keeps these particles in an improbable assembly, then, if the movement is random? I'm also curious about the idea of "random" motion. Not to be overly deterministic, but couldn't "random movement" just mean that we haven't discovered the purpose behind the movement yet? Here, we're taking other people's observations (perhaps lack thereof) for granted. After all, the movement of the sun and the moon would have seemed random too, before we discovered the setup of our galaxy and the rules of gravity. I think that the lab on Wednesday for instance, demonstrated that although there is only one widely accepted scientific explanation for certain things, there are still other stories that are interesting and worth at least thinking about.

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