As we like cat as our favorite pet. But if you keep on observing cat, it will make you to think about science. Now the question is How cat laps milk means how fast it will drink the milk which is kept in bowl. As shown in figure below.
Animals have developed a range of drinking strategies depending on physiological and environmental constraints. Vertebrates with incomplete cheeks use their tongue to drink; the most common example is the lapping of cats and dogs. We show that the domestic cat (Felis catus) laps by a subtle mechanism based on water adhesion to the dorsal side of the tongue. A combined experimental and theoretical analysis reveals that Felis catus exploits fluidinertia to defeat gravity and pull liquid into the mouth. This competition between inertia and gravity sets the lapping frequency and yields a prediction for the dependence of frequency on animal mass. Measurements of lapping frequency across the family Felidae support this prediction, which suggests that the lapping mechanism is conserved among felines.
Frogs absorb water through their skin, desert lizards extract it from food, horses slurp it, and cats lap. Based on experimental and theoretical analyses, Reis et al. now show that cat lapping involves a subtle mechanism that exploits fluid inertia to defeat gravity. Cats curve their tongue backward so that the top surface touches the liquid surface and then raise their tongues rapidly, causing a liquid column to grow by inertia until gravity induces its breakage; closing their jaws captures the liquid. Experiments involving a water surface and glass disk reveal the lapping mechanism in greater detail.
Also what physics says regarding this problem, Newton thought of apple and invented Gravitational force. Same reis thought how the milk is breaking the gravitational field while cats lapping fluid inertia takes important role.Cats use fluid inertia to generate a liquid column that they catch in their mouths before gravity destroys it. If you dip glass plate in a water and remove water drop will come through with glass surface. In cat also happens this thing only.
People gave proof using maths for this problem.
mpshridhar
Reference:
Science magazine
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