Coffee cosmetics / UK coffee enema gap / Abyss of lunacy / Bayesian delay

This week’s Feedback column (that I write) in New Scientist magazine has four segments. Here are bits of each of them: Caffeine boost — … Though some folk choose to roast, brew and drink coffee, innovative scientists use the bean and its byproducts to make cosmetics. Fernanda Maria Pinto Vilela and her colleagues at Brazil’s Federal University of […]