this post was submitted on 30 Sep 2024
321 points (94.5% liked)
Today I Learned (TIL)
6493 readers
289 users here now
You learn something new every day; what did you learn today?
/c/til is a community for any true knowledge that you would like to share, regardless of topic or of source.
Share your knowledge and experience!
Rules
- Information must be true
- Follow site rules
- No, you don't have to have literally learned the fact today
- Posts must be about something you learned
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
FTA: There is risk of a crush when crowd density exceeds about five people per square meter.[a] For a person in a crowd a signal of danger, and a warning to get out of the crowd if possible, is the sensation of being touched on all four sides. A later, more serious, warning is when one feels shock waves travelling through the crowd, due to people at the back pushing forward against people at the front with nowhere to go.
The Women's March in 2017 felt like a dangerous situation crowd-wise. Luckily cops are nice to white ladies and the Proud Boys hadn't started violently attacking everyone they hate, so it was fine.
I'm hoping we don't all have to mobilize again post-election, but if we do, I'll listen to my bad feeling and get out of crowds that are touching on all sides.