When the world’s expert on pygmy mammoths asks you a question about ketchup, you have to find the answer. The context was the article I wrote last week about non-Newtonian fluids, where researchers at ...

One of these is not like the others: honey, water, ketchup, and blood. The answer? Water, because the other three are all non-Newtonian fluid. When Isaac Newton first defined the properties of an ...

Non-Newtonian fluids encompass a wide class of materials whose viscosity and stress response vary with shear rate, time or external fields, departing from the constant-viscosity behaviour of Newtonian ...