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Recycling a dead TV

Last Saturday evening, my 15-year-old Sony television gave up the ghost. It was a quick death presaged by distortion in…

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Be wary of statistical traps

Statistics can be misleading and sometimes mind-boggling. Statistical studies can be used to hide the true nature of a relationship,…

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Old mines of the Tucson Mountains

Once upon a time, the Tucson Mountains west of town, were the site of much mining activity and speculation. The…