Editing Talk:2690: Cool S
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::This is a trick comment - when you take apart a pen the spring will invariably fly off somewhere never to be found again, so you won't be able to examine it.[[Special:Contributions/172.70.162.155|172.70.162.155]] 15:44, 28 October 2022 (UTC) | ::This is a trick comment - when you take apart a pen the spring will invariably fly off somewhere never to be found again, so you won't be able to examine it.[[Special:Contributions/172.70.162.155|172.70.162.155]] 15:44, 28 October 2022 (UTC) | ||
:Actually, a spiral can wind differently depending upon how you view it (c.f. a watch-spring or a particular type of rafia tablemat). But not a helix, such as a pen spring or DNA, which is what we have here. That indeed has constant chirality; without deliberate deformation, either pushing it through itself or unwrapping and allowing it to rewrap in the opposite direction of coiling, as anyone trying to rationalise a badly tangled telephone handest cable of years past (or similar) will have realised. [[Special:Contributions/172.70.85.25|172.70.85.25]] 17:45, 28 October 2022 (UTC) | :Actually, a spiral can wind differently depending upon how you view it (c.f. a watch-spring or a particular type of rafia tablemat). But not a helix, such as a pen spring or DNA, which is what we have here. That indeed has constant chirality; without deliberate deformation, either pushing it through itself or unwrapping and allowing it to rewrap in the opposite direction of coiling, as anyone trying to rationalise a badly tangled telephone handest cable of years past (or similar) will have realised. [[Special:Contributions/172.70.85.25|172.70.85.25]] 17:45, 28 October 2022 (UTC) | ||
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