Hackers' Pub

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`

Bartosz Milewski @BartoszMilewski@mathstodon.xyz

4/30/2025, 5:45:19 PM

Public

In all my years of doing physics, I never figured out the intuitive meaning of the lagrangian (or the action). Why should the difference between kinetic and potential energy play such a prominent role? What separates kinetic from potential energy?

I was always afraid to ask this question, not to sound stupid. 😕

If you have a fediverse account, you can quote this note from your own instance. Search https://mathstodon.xyz/users/BartoszMilewski/statuses/114428157604937435 on your instance and quote it. (Note that quoting is not supported in Mastodon.)

lionhairdino @lionhairdino@hackers.pub

5/1/2025, 12:36:53 AM

Public

이래서 이 분 강의를 좋아합니다.