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Technology Information:

Capillarity and Wetting Phenomena: Drops, Bubbles, Pearls, Waves

Description

The study of capillarity is in the midst of a veritable explosion. Hence the temptation to write a new book, aiming at an audience of students. What is offered here is not a comprehensive review of the latest research but rather a compendium of principles. How does one turn a hydrophilic surface into one that is hydrophobic, and vice versa? We will describe a few solutions. Some rely on chemical treatments, such as coating a surface with a molecular layer. Others are based on physics, for instance by controlling the roughness of a surface. We will also examine the dynamics of wetting. Drops that spread spontaneously do so at a rate that slows down with time. They can be tricked into covering large areas by spreading them suddenly. We will describe a few of the many facets of their dynamical properties. Special additives are required for water to foam. Foams are desirable in a shampoo but can be a nightmare in a dishwasher detergent. Antifoam agents have been developed and are well known, but how do they work? It is also possible to generate bubbles and foams without special additives, for example in pure and viscous liquids such as glycerin, molten glass, and polymers. As we will see, the laws of draining and bursting then turn out to be quite different from the conventional ones. This book will enable the reader to understand in simple terms such questions that affect every day life -- questions that also come up during in industry. The aim is to view systems that often prove quite complex in a way that isolates a particular physical phenomenon, often avoiding descriptions requiring advanced numerical techniques will oftentimes in favor of qualitative arguments. This strategy may at times jeopardize scientific rigor, but it makes it possible to grasp things efficiently and to invent novel situations.

Reviews

Rating: 3 / 5
Date: 2008-05-09
Summary: "Awfull Translation"

I had the original in French, and got the English version trying to understand it faster. I was very dissapointed when I found phrases as:

"The puddle is the seat of a certain internal pressure p_2>0"

A puddle being a seat? I just don't catch the metaphore. The original in french says,

"Il existe une certaine pression interne p_2>0"

Which is, as you can googletranslate, "There is some internal pressure p_2> 0".

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Rating: 5 / 5
Date: 2006-03-04
Summary: "Very useful and easy to read!"

This is a great book for anyone interested in capillarity and wetting phenomena. What I like about it is that it gives the reader a grasp of how things work and it goes through a lot of practical examples. The equations are voluntarily simplified (constants often omitted) to only leave the important variables and reveal the "mechanics of how things work". However, although the equations look simple, they do capture the essence of the problem and they are always perfectly sound. This is an approach that de Gennes uses a lot and which I believe makes things easier to understand. Moreover, the 3 authors of the book are, like the previous reviewer said, very well known and respected scientist in their field, which adds to the scientific soundness of their approach. In summary, I highly recommend this book to anyone interested in the physics of wetting.

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Rating: 5 / 5
Date: 2005-05-08
Summary: "Intuitive, elegant, insightful, beautiful!"

Capillarity and Wetting Phenomena, like every text and paper bearing the name of de Gennes is intuitive, insightful, elegant, beautiful and extremely useful text. The names de Gennes, Brochard and David Quere are well known to the researchers in this area, and this book basically brings together their deep insight about a host of different phenomena in very simple words and equations. The described physics of wetting, surface tension, droplet spreading, instabilities, bubbles, etc. is developed in a style where qualitative arguments, dimensional arguments and experimental observations are used to describe a variety of complex phenomena. The apparent lack of mathematical rigor is a blessing to everyone interested in developing a taste and temperament for this extremely important field. While one can find several related texts in the field, none other is written in this delightfully insightful way. This is one of the rare gems that everyone from a high school student to most advanced researcher in the field can read, enjoy, learn from and be delighted to possess.