A college student in Switzerland says he’s solved a 100-year-old physics problem. The question is about an air bubble trapped in a very narrow tube of liquid, where the bubble appears to be “stuck,” ...

Figure 1. A faulty flame disperser may cause the coils adjacent to the flame to absorb more heat energy than optimally designed. February 15, 2022 Heat transfer fluids are often taken for granted, ...

Fluids should be easy. They’re ordinary, classical things — water, air currents, maple syrup — described by physical laws first written down nearly two centuries ago. And yet when a tornado rips open ...