this post was submitted on 25 Apr 2024
861 points (98.4% liked)
memes
13237 readers
4808 users here now
Community rules
1. Be civil
No trolling, bigotry or other insulting / annoying behaviour
2. No politics
This is non-politics community. For political memes please go to !politicalmemes@lemmy.world
3. No recent reposts
Check for reposts when posting a meme, you can only repost after 1 month
4. No bots
No bots without the express approval of the mods or the admins
5. No Spam/Ads
No advertisements or spam. This is an instance rule and the only way to live.
A collection of some classic Lemmy memes for your enjoyment
Sister communities
- !tenforward@lemmy.world : Star Trek memes, chat and shitposts
- !lemmyshitpost@lemmy.world : Lemmy Shitposts, anything and everything goes.
- !linuxmemes@lemmy.world : Linux themed memes
- !comicstrips@lemmy.world : for those who love comic stories.
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
A friend who’d just had a basement theater installed told me that materials tend to absorb sound waves that have wavelength shorter than the thickness of the material.
This is why bass can be heard from outside the club, but you only hear the rest when the door opens.
It’s also why various timer chimes are high pitched. In a place without soundproof walls, that high pitched beep is less likely to disturb your neighbor.