Dr. Pepper–
I clicked on your link above – cool!
Maybe one of these days I’ll try to get thru (or skim thru) the book “The Story of ?”, which I saw in B&N. A quick look at a couple of chapters showed an explanation of how it was calculated with some precision, which I think is similar to that site’s animation.
am yisrael chai–
If it’s OK with the moderators, it’s OK with me.
I’d prefer to use a disposable email address, though.
I’ll b’n try to come up with something new, or crib a puzzle from elsewhere.
BTW, we’re still waiting for an answer or hint to your “Coffee” riddle.