Paradise Lost

“Humans are tropical animals”, it’s said. Or are we? True, our ancestors did come from Africa (well…our homo sapiens ancestors, anyway), but seldom is it asked: what was Africa like for them? Consider that while the tropics are oppressively hot and humid now, we are … Continue readingParadise Lost

Degree of Frost

We usually think of a temperature scale as proceeding from a zero point with higher numbers corresponding to hotter temperatures, and indeed that is probably the most intuitive way to think about it, but that’s not necessarily the case; “degrees of frost” are, or at … Continue readingDegree of Frost