Ketchup

Oobleck, Cream, and Ketchup

Most liquids behave like we would expect them to. But there are liquids, known as Non-Newtonian Fluids, that behave strangely under stress. Consider your ketchup bottle. Why is it that we hit the ketchup bottle to make the ketchup come out faster? Turns out it isn’t because the force knocks the ketchup lower down, but … Continue reading →