this post was submitted on 25 May 2024
915 points (100.0% liked)

196

17661 readers
318 users here now

Be sure to follow the rule before you head out.


Rule: You must post before you leave.



Other rules

Behavior rules:

Posting rules:

NSFW: NSFW content is permitted but it must be tagged and have content warnings. Anything that doesn't adhere to this will be removed. Content warnings should be added like: [penis], [explicit description of sex]. Non-sexualized breasts of any gender are not considered inappropriate and therefore do not need to be blurred/tagged.

If you have any questions, feel free to contact us on our matrix channel or email.

Other 196's:

founded 2 years ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[–] Swedneck@discuss.tchncs.de 11 points 1 year ago (11 children)

that last bit tells me you're either old or have hearing damage: we have some bats around me and despite never once seeing them it's plainly obvious to me that they exist thanks to their shrill squeaky calls in the twilight.

https://www.youtube.com/watch?v=X4eqkaHkTAI

[–] norbert@kbin.social 11 points 1 year ago (4 children)

Linking to a guy using an expensive ultrasonic mic to hear bats doesn't really support youe statement that you're hearing bats around you despite never seeing them. Maybe you have hearing damage?

[–] Swedneck@discuss.tchncs.de 3 points 1 year ago (2 children)

he literally says in the video that their calls range from 20kHz to 200kHz, with 20kHz being the normal top range of human hearing for someone without hearing damage.

load more comments (2 replies)
load more comments (8 replies)