3 ms·

This remembers me of "primetime" a "clock" which draws a green bar every time the timestamp is a prime. https://tessi.github.io/primetime https://tessi.github.

• flukus 9y ago
  That's oddly compelling to watch. And there's that human urge to try and see a pattern in the prime groupings.
  • tess0r 9y ago
    You can fiddle with the displayed time (by editing the url) -- it's fun to see that (very) early timestamps have much greater chance to be a prime number. Also, sometimes, you can find "twin primes". https://tessi.github.io/primetime/?t=1500000000 https://tessi.github.io/primetime/?t=1500000000 has such a twin-pair in the center of the screen (the twins are 1499999927 and 1499999929).
    • sdoering 9y ago
      I was interested when 10^n events would happen and ran in a nice litte bug. I like to believe that this marks the end of all times: https://tessi.github.io/primetime/?t=10000000000000 https://tessi.github.io/primetime/?t=10000000000000
      • XaspR8d 9y ago
        Javascript's maximum date is Sat, 13 Sep 275760 (=8640000000000), so you've actually gone some ~43,000 years past the end of all time.
• plq 9y ago
  > looks awful today I don't know what you don't like about it but I think not only that it looks great, but also to me that's a design that's got character.
  • tess0r 9y ago
    * the green lines are somehow weirdly blurred (for god know what reason) * it's hard to notice that the current timestamp is the most right (white or green) bar. Would be nice to have the current time in the center. * It's hard to get the concept without explanation (at first glance people just see weird green bars moving). But then, I never meant to make a perfectly polished clock. It's good for a quick experiment.
• rnhmjoj 9y ago
  A quick shell version: while true; do if test $(factor $(date +%s) | wc -w) = 2; then echo -n '|'; else echo -n ' '; fi; sleep 1; done
  • cyphar 9y ago
    You can also just watch what the prime factorisation of the current time is like this: watch -n 1 'date +%s | factor'