Apologies, I thought I’d seen 60 seconds but since looking I’ve found a bunch of guesses from “every few” to numbers with nothing that looks like a source in headlines.
Going to the source, I found:
are taken every five seconds while content on the screen is different from the previous snapshot.
Should have searched first, sorry!
I suspect you’d have a hard time training anyone to use software based on (say) a screenshot every sixty seconds. May be wrong.
Apologies, I thought I’d seen 60 seconds but since looking I’ve found a bunch of guesses from “every few” to numbers with nothing that looks like a source in headlines.
Going to the source, I found:
Should have searched first, sorry!