School’s almost here, which means so’s the task of buying school supplies. If you’re a high school or college student—or if you’re buying stuff for someone who is—one of the items on that list is ...

Earlier this morning I was pondering the problem of creating a timeline diagram charting the evolution of color vision. I want this to be all encompassing, starting with the formation of the Earth ...

[HomoFaciens] is always making us feel silly about our purchases. Did we really need to buy a nice set of stepper motors for that automation project? Couldn’t we have just used some epoxy and a ...