This experiment perhaps applies most to people who soak their teeth (dentures, or in-jaw teeth that include artificial elements) in coffee: “Does hot coffee or cold coffee cause more discoloration on resin based composite materials?” Bilge Ersoz, Elif Aybala Oktay, and Numan Aydin, Serpil Karaoglanoglu, European Oral Research, vol. 57, no. 2, 2023, pp.103-107. The […]
This week’s Feedback column (that I write) in New Scientist magazine has three segments. Here are bits of each of them: The Kármán sutra — … The paper is almost Victorian in its voluminous discussion of possible regulatory mechanisms, but nearly complete avoidance of mentioning fornication. The highest moment of titillation comes in the following passage: “The […]
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 […]
Oxford maths PhD student Sophie Abrahams explicates the Ig Nobel Prize-winning research on what happens when one walks backwards while (or whilst) holding a cup of coffee. The 2017 Ig Nobel Prize for fluid dynamics was awarded to Jiwon (Jessie) Han, for studying the dynamics of liquid-sloshing, to learn what happens when a person walks […]