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Fenceposts, Benzene, and Euler
These questions came up on a family drive last weekend: How many posts does a hundred-yard fence with one-yard beams have? What if the fence is circular? What if it’s a cross? What if it’s a figure...
View ArticleDisney World
I just got back from a week with the family at Disney World. I thoroughly enjoyed it. The surface part of my mind was completely taken in by the sensation of being in the jungle (at Animal Kingdom) and...
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Birthday Numerology
Double Trouble In four months Miles will be twice Charlotte’s age. (He will be 10; she will still be 5.) A year ago, he was also twice Charlotte’s age. (He was 8; she was 4.) A year from now, he will...
View ArticleRefactoring for Fifth Graders
I gave Miles a set of Logo programming problems: * sv 3 draws a square divided vertically into three columns * sh 4 draws a square divided horizontally into four rows * svn 3 4 draws a square with...
View ArticleThe Novell Virus
Miles told me about the computers at his elementary school: They’re running anti-virus software, but they’ve installed a virus! It’s called Novell. It makes the computer boot slowly, it does a lot of...
View ArticleGrief
One warm Monday morning last August my father died. The previous Wednesday he had been planning to see March of the Penguins, a movie he probably would have discussed with his grandchildren over the...
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Marvin’s Cake
Marvin’s birthday cake: based on Marvin’s book: and created by these folks. I think they did an amazing job. I suggested the “zero to infinity” since it’s what you get if you turn “80″ sideways. I had...
View ArticleMy No TV
We have a No TV in our living room. Sometimes I think it’s our most valuable possession. Our No TV gives the whole family somewhere between one and six extra hours every day. It’s hard to add hours to...
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