This polar bear crossing thin ice by distributing its mass over a wider surface area to reduce pressure.
Alexa, what is the gateway report?
Watch how immune cell chases bacteria and eliminates them
A non-Newtonian fluid is a fluid that does not follow Newton's law of viscosity, that is, it has variable viscosity dependent on stress. In non-Newtonian fluids, viscosity can change when under force to either more liquid or more solid.