9 Clock

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Here’s an interesting clock I stumbled across, but forgot to take down the URL (oops).

In case you are wondering, the math does all work out. I especially like the square root of nine factorial minus nine over nine and nine minus the square root of nine plus point nine repeating.

REPOST NOTE: It only seemed appropriate to change the post time for this to 9/9/(09-√9 + 9/9)

Stacking the deck

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Now THAT is what I call a card house.  The creators web site contains a gallery of his work and describes how he does it.  It is pretty amazing stuff.

Not surprisingly, I was trying to show Danielle how to build a card house the other day, and I was showing her the same basic grid technique that is at the heart of these creations.