this post was submitted on 16 Feb 2024
22 points (95.8% liked)

Ask Science

8641 readers
28 users here now

Ask a science question, get a science answer.


Community Rules


Rule 1: Be respectful and inclusive.Treat others with respect, and maintain a positive atmosphere.


Rule 2: No harassment, hate speech, bigotry, or trolling.Avoid any form of harassment, hate speech, bigotry, or offensive behavior.


Rule 3: Engage in constructive discussions.Contribute to meaningful and constructive discussions that enhance scientific understanding.


Rule 4: No AI-generated answers.Strictly prohibit the use of AI-generated answers. Providing answers generated by AI systems is not allowed and may result in a ban.


Rule 5: Follow guidelines and moderators' instructions.Adhere to community guidelines and comply with instructions given by moderators.


Rule 6: Use appropriate language and tone.Communicate using suitable language and maintain a professional and respectful tone.


Rule 7: Report violations.Report any violations of the community rules to the moderators for appropriate action.


Rule 8: Foster a continuous learning environment.Encourage a continuous learning environment where members can share knowledge and engage in scientific discussions.


Rule 9: Source required for answers.Provide credible sources for answers. Failure to include a source may result in the removal of the answer to ensure information reliability.


By adhering to these rules, we create a welcoming and informative environment where science-related questions receive accurate and credible answers. Thank you for your cooperation in making the Ask Science community a valuable resource for scientific knowledge.

We retain the discretion to modify the rules as we deem necessary.


founded 1 year ago
MODERATORS
 

I'm curious about building cat toys that are impractically over complicated with Arduino/Maker stuff. Thus the casual curiosity about persistence of vision. I wonder if other animals have something like a different internal clock frequency where the image only forms at higher (or lower) frequencies than most humans.

you are viewing a single comment's thread
view the rest of the comments
[–] Paragone@lemmy.world 1 points 9 months ago

I think I read somewheres that you need 240Hz monitor to reach flicker-fusion with parrots?

It was either 120Hz or 240Hz.

I lost flicker-fusion one time in a movie theatre when an onscreen character pulled a knife, & suddenly the screen was AVALANCHING my mind with discrete-frames, & they were jumping around ( my eyes were jumping-around, but my perspective, within my brain, had been jarred ). That even seemed to have lasted about 1 second.


There is some video, journalism or documentary or something, on dragonflies, and the person with the knowledge was saying..

~ we know how long it takes for each layer in a brain ( neural-network ) to process its layer's stuff, and we know from the short reaction-time of dragonflies that they're using 3-neurons-deep brain for navigating/hunting/reacting.

We don't know how. ~


I seem to remember that neural-signal in our biology runs at about .. 300km/h?

Something like that.


So, with all the circuitry being shorter in an always-smaller kind of animal, it may have a predictably-shorter flicker-fusion rate?

( within kind, so no extrapolating from humans to birds, e.g. )


Anyways, interesting question!

_ /\ _