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I am really not an expert in the micro-world, but from the times I have worked with microscopy, i know a lot of materials (and surely such a heterogenous materi
by simbolit 3y ago
I am really not an expert in the micro-world, but from the times I have worked with microscopy, i know a lot of materials (and surely such a heterogenous material as "grime") have more holes than swiss cheese. So, yes, of course, some particles can cover some spikes, but "covered in a layer of grime" (which implies, well, coverage) doesn't seem likely to me.
- vladvasiliu 3y agoI seem to remember some "science" program on TV a while ago talking about how the lotus leaf had some specific texture on which liquids wouldn't adhere. Would you think this is similar, in that whatever "grime" would fall on the spiked surface wouldn't adhere and just fall off?
- simbolit 3y agoIs possible, but is not what I mean. I mean anything large (on this scale, for us it's still tiny) will only ever cover a few of these spikes. bad analogy: Take a beach ball, and put it on a chess board. It will only cover very few squares, because "covering" (in the sense we use it here) needs surface contact. Again, I am not an expert on the micro-level, this is just extrapolation from the little bits I do know.