SariEverna

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What is known about Persistence of Vision in various animals?

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.

SariEverna ,

I don’t have a source for it, but I recall hearing that yes, their eyes work at a different speed than ours, and that’s part of why cats and dogs are generally not so interested in TV. Unfortunately I don’t know what search terms might be useful here since I don’t know if this has a technical name, but something like “refresh rate” or “fps” might help in the search.

Gov. Abbott is now putting barriers along Texas border with New Mexico ( news.yahoo.com )

Isn’t this against the US constitution? Razor wire along the state border and checkpoints on roads that cross the state border are kind of nuts. I read a comment joking that the wire and road checkpoints were to keep Texan women from escaping to New Mexico, which got a bitter laugh out of me.

SariEverna ,

The people who put this up are not paid enough to risk challenging anybody on this. They’re not crazy, they just need money to survive. Their bosses, on the other hand… Yeah, I don’t know. It’s amazing that it can make it through as many hands as it must have and nobody says “Are you sure?” Or maybe they did and they just kept being shut down.

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