"Things You Wouldn't Know If We Didn't Blog Intermittently."
That's just evil.
If I squint to where light is only coming in through my eyelashes, the blue lines are straight.If I slowly rotate polarized lenses there is a point where the lines are straight before the picture blacks out.
A feller should be able to use this to get out of prison.
here is a link to a 'Selmi Triangle.by Nydhalo' https://www.deviantart.com/nydhalo/art/Selmi-Triangle-136342456 in case you are wondering, it is the best of both worlds: a sierpinski fractal triangle and a penrose impossible tribar!I-)