Mine does, and therefore I can "borrow" (read for free) articles that make it to the mag.
Mathematicians have found a hidden 'reset button' for undoing rotation
21–30 of 125 posts
Re: Mathematicians have found a hidden 'reset button' for undoing rotation
#22Re: Mathematicians have found a hidden 'reset button' for undoing rotation
#23Re: Mathematicians have found a hidden 'reset button' for undoing rotation
#24For those who struggle with the pay wall: check your local library's (online) membership, it might come with the worldwide library card, which might include the New Scientist magazine. Mine does, and therefore I can "borrow" (read for free) articles that make it to the mag.
Re: Mathematicians have found a hidden 'reset button' for undoing rotation
#25For those who struggle with the pay wall: check your local library's (online) membership, it might come with the worldwide library card, which might include the New Scientist magazine. Mine does, and therefore I can "borrow" (read for free) articles that make it to the mag.
Re: Mathematicians have found a hidden 'reset button' for undoing rotation
#26which is reporting on the linked original publication:
https://journals.aps.org/prl/abstract/10.1103/xk8y-hycn
which has a preprint available:
https://arxiv.org/abs/2502.14367
h/t to both criddell and nicklaf who posted replies containing the above to a now [flagged][dead] comment which violates the HN guidelines, which is why I have collated this and reposted it as a top-level comment.
In future, I would advise folks who post archives and workarounds to post them as a top-level comment in addition to and/or instead doing so as replies to others, especially instead of as replies to comments that violate guidelines, as if/when those comments become [dead] for whatever (legitimate or otherwise) reason(s), their child comments also get buried except to those with showdead enabled on their profile, which requires not only an HN account and login, but also requires enabling the showdead option in one’s user profile.
Re: Mathematicians have found a hidden 'reset button' for undoing rotation
#27https://archive.is/08ig5
Re: Mathematicians have found a hidden 'reset button' for undoing rotation
#28Re: Mathematicians have found a hidden 'reset button' for undoing rotation
#29I've been trying to understand as much of "maths" as I can (now enough to write that in quotes, as there isn't a "single" maths) and still a layman, I love reading about discoveries like these, and the fact that you still can have discoveries in things thought to be so fundamental..
Re: Mathematicians have found a hidden 'reset button' for undoing rotation
#30I was immediately reminded of the anti-twist mechanism, perhaps unrelated but "reset rotation, twice/half" comes up there as well. https://en.wikipedia.org/wiki/Anti-twister_mechanism
Thank you! I'm working on a robot with a very expensive slip ring, and need to send high fidelity data through it with shielding. I had no idea this was possible this will make things so much easier!
I found a related video you might find interesting.
https://www.youtube.com/watch?v=gZvimEf6DFw
I'm currently studying group theory and SO3 rotations (quaternions & matrix groups) and I'm also curious about the connection. I still have a lot to learn but I wouldn't be surprised if the reset rotation is unique, if we abstract away variation.