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| bio | website | |
|---|---|---|
| location | New York | |
| age | ||
| visits | member for | 1 year, 7 months |
| seen | Dec 12 '11 at 0:52 | |
| stats | profile views | 22 |
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Oct 24 |
comment |
understanding why inversion cannot be accomplished by a rigid change yo ron... can you point me to a discussion of how 3-d objects ( or higher dimensional objects behave under inversion etc)? |
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Oct 24 |
awarded | Supporter |
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Oct 24 |
awarded | Scholar |
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Oct 24 |
awarded | Commentator |
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Oct 24 |
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understanding why inversion cannot be accomplished by a rigid change yo ron thx for the tip! as a further point I see also you cannot turn a left-handed glove into a right handed glove by a translation and a rotation. |
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Oct 24 |
accepted | understanding why inversion cannot be accomplished by a rigid change |
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Oct 24 |
comment |
understanding why inversion cannot be accomplished by a rigid change first we know the improper rotation changes the handedness of the coordinate system. now, imagine a rigid body rotating about the origin. say there are initially some right handed set of coordinates fixed in the rigid body frame at t=0, and then we start rotating the rigid body about the origin of this coordinate system. There is simply not way you can rotate such that the handedness will change!! the rotation of a rigid body is completely defined by the euler angles and if you imagine any of these 3 rotations, there is no way to actually invert invert the axis by such a rotation. |
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Oct 24 |
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understanding why inversion cannot be accomplished by a rigid change an inversion is like a plane-reflection of a rigid body... without a rotation ( thus the handedness get's changed right?) |
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Oct 24 |
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understanding why inversion cannot be accomplished by a rigid change that has to do with certain molecules doing wierd quantum things ( NH3 does this supposedly) but I don't want to get into all that. supposedly NH3 can tunnel into it's left-handed state or something (i don't understand it classically so I'm not too sure) |
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Oct 24 |
awarded | Student |
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Oct 24 |
revised |
understanding why inversion cannot be accomplished by a rigid change added 317 characters in body |
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Oct 24 |
comment |
understanding why inversion cannot be accomplished by a rigid change if you look at the vector r = (1,0,0) maybe there is a way to explaon this with a simple example like that, i'm workin' on it right now... |
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Oct 24 |
asked | understanding why inversion cannot be accomplished by a rigid change |
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Oct 23 |
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should I take notes in class this question is asking about note-taking for physicists, this is not a question about general note-taking in that sense it is on topic... I'm asking about physicists and their note taking practices ... |
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Oct 23 |
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should I take notes in class i see threads like "what does it take to be a top physicist?" and "how to study mathematics as a physicist?" i'm not sure how you can justify closing this and leaving those open ?? please add a a comment |
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Oct 23 |
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should I take notes in class how do i get reputation of 20? |
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Oct 23 |
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should I take notes in class they won't let me ask in physics chat because I don't have a reputation of 20 : ( |
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Oct 23 |
revised |
should I take notes in class added 151 characters in body |
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Oct 23 |
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should I take notes in class if this is innappropriate for this forum I understand, but I really would appreciate some advice on this topic |
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Oct 23 |
asked | should I take notes in class |
