Observe the level of water in a cylinder graduation a still photo and a animated surface-water level is not completely flat!, And raised at the edges of contact with the container. In the picture animated: seeing the level change (due to immersion of a body), you understand better where is the level, and how and done. The sign of the water level on the reading scale of volume, and confused; instead of being net, has a thickness, occupies about a notch in height. Why?
After measuring more times with measuring cup, looking better, you realize that the sign that the water level is on the scale of reading this book, instead of being sharp and thin, and nuanced and has a thickness . Why? Surface water. Instead of being completely flat, as one usually found, well-looking. It gets a bit on the edge! Viewed from the side, and this rise a thin layer of water, variable, resulting in an unclear level of transition between water and air. Side view of the central section (vertical), and the cylinder graduate. Qua correct reading? The upper or the lower one? ¬ ¬ level of raising the edge of the water level r: the accurate reading and the bottom line, the one made on the level of the pita.Dove else notice this behavior of water? A thing have? Membership more obvious with wall inclination. Il water level when the bottle Tiena. Adhesion, cohesion. Ida: Here you can open too long a digression, but to maintain initial goal, you have to keep it within a few minutes, max 5. On a more fast say, "That what is happening", take note.
Not an isolated case, but a general phenomenon called solid-liquid adhesion. Piu in general still there adhesion between any material, and between parts of the same material that is more specifically cohesion, eg cohesion between the parts of water they do hold together the drop. Piu in general still there and theory of the "mechanics of Newton" that explains the interaction between bodies, attractions and repulsions, by the forces. Examples of membership are: those we meet in the course of study, and outside. Ex: mercury slipping on outcome never veto. Dominate of the bending the water looks like a whiteness, more obvious in a photo in the other, even though the water and transparent How you see if the container and glass? Did-ala presentation of the cylinder and took place in 2 stages: In the first instance how to read the level and was taken for granted >>> There is a demand for precision due to the students ability of predicting the float / sink. There an area not clear where to read? L exposure to this page and torn between watching a posteriori (post) and at the front (pre). Now Feb 10, 2013 I'm doing a review of the program carried out a posteriori, starting at the imagery of the experience, and then I put it on top of the rear vision of decoy-revision-summary-summary-end-storage-ricordo. TitoloCome read with the rise of water at the edges?