If you mix cornstarch and water in the right proportions, you get “oobleck”: something that seems not-quite-liquid but also not-quite-solid. Oobleck flows and settles like a liquid when untouched, but ...

In the most basic of terms, rheology can be considered the study of flow behavior in materials, whether solid, liquid, or gas. Rheology recognizes that certain solids respond with plastic flow in ...

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 ...

Ketchup, which is made by heating ripe tomatoes, filtering them, boiling them at a low temperature, and then adding sugar, salt, vinegar, etc., is a seasoning that goes well with hot dogs, sausages, ...

If you’ve ever whacked the bottom of a ketchup bottle to get that tasty tomato goop flowing, you’ve put some serious physics to work. Ketchup is a non-Newtonian fluid. So are toothpaste, yogurt, ...

Dilatants are a class of non-Newtonian fluids characterized by their ability to transition from a fluid state to a near-solid state under shear stress due to a high concentration of solid particles ...