Can a weave be moved or otherwise affected by external non-Power related forces? For example, can a non-channeler take a sword of Air and use it for battle? Or can a shield of Air be moved by the wind? Or can a natural event disturb a weave without affecting the channeler?
The first example given has to be treated separately, I think. A sword woven of Air—or Fire or any other of the Five Powers—could be wielded by a non-channeler if the weave had been tied off or the channeler maintained it. But that is a difficult way to acquire a sword and not really worth the effort unless there is great need for a sword and no other sword available. But in that case, why wouldn’t the channeler simply handle things another way? To paraphrase Siuan Sanche, “It’s simpler and easier just to use a steel sword.”
As to weaves being affected by other non-Power, natural occurrences, no, not directly. Though an earthquake knocking an Aes Sedai off her feet and bouncing her around might put a crimp on her channeling for a bit. The wind will not move a shield woven of Air, nor will any other natural event affect a weave UNLESS it does so by affecting the channeler first and thus disrupting his or her ability for whatever period of time. If the channeler is being swept away down rapids, this presents problems. Not necessarily insurmountable problems, but being tumbled head over heels, bounced off boulders and half drowned makes the necessary concentration not easy.
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