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True or False?

I once read in a book that all humans are born with three innate fears: The fear of darkness The fear of heights/falling The fear of reptiles Now, this was a fiction title so I cannot verify the validity of the statement. But the more I think about it, the more it makes sense. Because while we may grow out of these fears, but I have not yet come across one person who never feared these things as a young child. Can any of my readers refute this statement? For instance, can anyone remember ever not being fearful of snakes? Can anyone who has experience in psychology confirm or disprove this theory?...

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The Knight’s Tour [Animated GIF]

Today I learned that on a chessboard, a knight can visit each square exactly once. Here's how: The animation is actually one way of solving the Knight's Tour, which is a mathematical problem that is commonly given in computer science courses. (However, I don't recall ever giving this problem in my Intro to Java class.) At first glance, viewers may object that the animation is not valid considering that the knight's square of origin is incorrect. However, according to Wikipedia, there are 26,534,728,821,064 different ways (including reversals, reflections and rotations) to do this so that the knight travels in a loop (ie, starting where it began), in which case you could start from any square and then just continue the loop from there. Via Reddit....

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My Favorite Week of the Summer

...is Discovery Channel's Shark Week. I don't particularly like the ocean, nor am I a very good swimmer. In fact, I have a ridiculous fear of most fish (yes, even goldfish!). But these majestic creatures have always fascinated me. I remember taking out tons of books on sharks from the library when I was a little kid and dreaming of becoming a marine biologist. (Too bad my ineptitude at science — as well as my fear of practically all other fish — stopped that dream short.) I have even made it a goal to go cage diving at least once before I die. (via Twaggies) And yes, Jaws remains one of my all-time favorite movies. :-) Does anyone else get as excited over Shark Week as I do? (Don't...

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