Related Experiment Video
Updated: Jul 12, 2026
08:20
Capillary-based Centrifugal Microfluidic Device for Size-controllable Formation of Monodisperse Microdroplets
Published on: February 22, 2016
10.3K
Dynamics of droplets and bubbles and their applications: current challenges and future opportunities
Rajneesh Bhardwaj1, Myeongsub Mike Kim2, Marie Pierre Krafft3
1Department of Mechanical Engineering, Indian Institute of Technology Bombay, Mumbai, 400076, India. rajneesh.bhardwaj@iitb.ac.in.
Scientific Reports
|April 10, 2025
Abstract
No abstract available in PubMed .
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01:16Surface Tension and Surface Energy
When a paint brush is immersed in water, the bristles wave freely inside the water. When it is taken out, the bristles stick together. The reason behind this effect is surface tension.
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01:13Excess Pressure Inside a Drop and a Bubble
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01:18Rise of Liquid in a Capillary Tube
When very thin cylindrical tubes, called capillaries, are dipped in a liquid, the liquid rises or falls in the tube compared to the surrounding liquid. This phenomenon is called capillary action. Capillary action occurs due to the combination of two opposing forces: the cohesive forces of the liquid, which cause it to stick to itself and form a rounded shape, and the adhesive forces between the liquid and the walls of the container, which cause the liquid to be attracted to the container walls.
01:22Surface Tension of Fluid
Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
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01:19Capillarity in Fluid
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