confused of calcutta

the omensare not goodWhy 6174? Read this article. I love the symmetry and chaos of numbers, and have been entranced by Kaprekar’s constant ever since I heard about it, too many decades ago. You could say that for four-digit numbers, when you apply Kaprekar’s operation, all roads lead to 6174. Which is the way I [...]

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from DVDsto cigarettesThanks to Doc, I came across Mark Pilgrim’s post on A History of DVD Copy Protection. I have always found DVD Region Coding to be laughable, almost tantamount to fraud, so I loved the article. Read it and decide for yourself.
What I particularly enjoyed was how Mark moved from DVDs to cigarettes:

On a [...]

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