How optical illusion works

Beau Lotto’s color games puzzle your vision, but they also spotlight what you can’t normally see: how your brain works. This fun, first-hand look at your own versatile sense of sight reveals how evolution tints your perception of what’s really out there.

Beau Lotto is founder of Lottolab, a hybrid art studio and science lab. With glowing, interactive sculpture — and good, old-fashioned peer-reviewed research — he’s illuminating the mysteries of the brain’s visual system.

Beau Lotto: Optical illusions show how we see

Any Prolog experts around?

I need to create a Prolog crossword puzzle for a school assignment. I don’t want a Prolog solution, I have a couple but I couldn’t understand what it means so it’s kinda pointless for me. Does anyone have any tips to completing this task? Perhaps which in built predicate I should be looking out for or something? I am using SWI-Prolog 5.6.64 for this assignment.

True.

[Note that all comment will not be shown here. Sorry about that. I’ll reply directly to your email address.]

Know someone who likes chocolates and puzzles?

My friend got this at Kino and it’s pretty cool:

Meiji white chocolate puzzle front

(Meiji white chocolate puzzle front.)

Meiji white chocolate puzzle back

(Meiji white chocolate puzzle back.)

It looks like something to be eaten but you really have to hold back on your appetite. Wish I could have it opened. It makes a pretty good gift.