Hackers' Pub

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

Hacker News 50 @hn50@social.lansky.name

10/21/2025, 8:55:06 PM

Public

Mathematicians have found a hidden 'reset button' for undoing rotation

Link: https://www.newscientist.com/article/2499647-mathematicians-have-found-a-hidden-reset-button-for-undoing-rotation/
Discussion: https://news.ycombinator.com/item?id=45606853

Mathematicians have found a hidden 'reset button' for undoing rotation

Mathematicians thought that they understood how rotation works, but now a new proof has revealed a surprising twist that makes it possible to reset even a complex sequence of motion

www.newscientist.com · New Scientist

If you have a fediverse account, you can quote this note from your own instance. Search https://social.lansky.name/users/hn50/statuses/115414145872306548 on your instance and quote it. (Note that quoting is not supported in Mastodon.)