To dunk is to dip biscuit, bread, cake, or doughnut into a beverage, usually hot, especially tea or coffee, but the popular American snack "milk and cookies" features cookies dunked into cold milk. Dunking a biscuit is said to release flavour, but is usually done to alter the texture of harder confections. A biscuit is an edible snack. ... European sweetbread (strucla) Four loaves French bread has a somewhat rigid crust Breads and Bread Rolls at a bakery Continental Italian Bread Tin Vienna Bread Bread in a traditional oven, in Portugal, with hot coal in front For other uses, see Bread (disambiguation). ... A birthday cake decorated with fruit, shaved chocolate, and candles. ... Doughnuts being glazed at a Krispy Kreme store in Sydney. ... The word drink is primarily a verb, meaning to ingest liquids, see Drinking. ... Tea leaves in a gaiwan. ... A cup of coffee Coffee as a drink, usually served hot, is prepared from the roasted seeds (beans) of the coffee plant. ... A glass of cows milk Milk most often means the nutrient fluid produced by the mammary glands of female mammals. ...

A popular form of dunking in Australia is the "Tim Tam Slam", also known as "tea sucking". Tim Tams are a chocolate biscuit made by Arnotts, Australia. ...

The physics of dunking is driven by the porosity of the biscuit and the surface tension of the beverage. A biscuit is porous and, when dunked, capillary action draws the liquid into the interstices between the crumbs. A Superconductor demonstrating the Meissner Effect Physics (from the Greek, φυσικός (physikos), natural, and φύσις (physis), nature) is the science of the natural world dealing with the fundamental constituents of the universe, the forces they exert on one another, and the results produced by these forces. ... In physics, surface tension is an effect within the surface layer of a liquid that causes the layer to behave as an elastic sheet. ... Capillary action or capillarity (also known as capillary motion) is the ability of a narrow tube to draw a liquid upwards against the force of gravity. ...

Biscuit dunking and popular science

Biscuit dunking became prominent during National Biscuit Dunking Day in which physicist Len Fisher of the University of Bristol presented some light-hearted discussion of dunking, aiming to show that physics could be fun, accessible, and easy to comprehend. The University of Bristol is a university in Bristol in the United Kingdom. ...

Fisher appeared to be somewhat taken aback by the large amount of media attention, ascribing it to a "hunger for accessible science". Fisher also described his astonishment at journalists' interest in one equation used in the field: Washburn's equation, which describes capillary flow in porous materials. Writing in Nature, he says "the equation was published in almost every major UK newspaper. The journalists who published it took great care to get it right, some telephoning several times to check". In physics, Washburns equation describes capillary flow in porous materials. ... Nature is one of the oldest and most reputable scientific journals, first published on 4 November 1869. ...

Dunk is also the nickname of sam duncombe the 16 year old cokeaine dealer from barnstaple UK. he is also well known for having a shity crack.

(quotes from Nature 397, 469; 1999).