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Applying force to oobleck, by sound waves in this case, makes the non-Newtonian fluid thicken. [ 21 ] An inexpensive, non-toxic example of a non-Newtonian fluid is a suspension of starch (e.g., cornstarch/cornflour) in water, sometimes called "oobleck", "ooze", or "magic mud" (1 part of water to 1.5–2 parts of corn starch).
Oobleck may refer to: Oobleck, a non-Newtonian fluid suspension of starch in water Bartholomew and the Oobleck, a Doctor Seuss novel, after which oobleck is named;
It follows the adventures of a young boy named Bartholomew Cubbins, a page boy who must rescue his kingdom from a sticky green substance called Oobleck. The book is a sequel of sorts to The 500 Hats of Bartholomew Cubbins. Unlike most of Seuss's books, which are written in anapestic tetrameter, Bartholomew and the Oobleck is a prose work.
This can readily be seen with a mixture of cornstarch and water (sometimes called oobleck), which acts in counterintuitive ways when struck or thrown against a surface. Sand that is completely soaked with water also behaves as a dilatant material — this is the reason why when walking on wet sand, a dry area appears directly underfoot.
However, non-Newtonian fluids are relatively common and include oobleck (which becomes stiffer when vigorously sheared) and non-drip paint (which becomes thinner when sheared). Other examples include many polymer solutions (which exhibit the Weissenberg effect), molten polymers, many solid suspensions, blood, and most highly viscous fluids.
Though the exact cause of shear thinning is not fully understood, it is widely regarded to be the effect of small structural changes within the fluid, such that microscale geometries within the fluid rearrange to facilitate shearing. [6]
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If I Ran the Zoo is often credited [6] [7] with the first printed modern English appearance of the word "nerd", although the word is not used in its modern context.It is simply the name of an otherwise un-characterized imaginary creature, appearing in the sentence "And then, just to show them, I'll sail to Ka-Troo/And Bring Back an It-Kutch, a Preep, and a Proo,/A Nerkle, a Nerd, and a ...