Concentration polarization of ion-exchange membranes in electrodialysis units limits operational current densities to the underlimiting regime, preventing process intensification by simply increasing ...

One of the crucial aspects of international goods is their high price elasticity of demand, a concept that plays a ...

Our readers agree that it is generally most fuel-efficient to maintain a constant speed while driving up and down hills – but there are other factors to consider too ...

Time, as we experience it on Earth, may not be as constant as we imagine. According to Einstein’s theory of general relativity, time is not uniform across the universe; it’s actually affected by both ...

Broadly speaking, Earth takes roughly 24 hours to spin around on its axis. Ocean tides, volcanic activity and earthquakes can ...