Evaporation is a phase transition in which molecules at the surface of a liquid acquire sufficient kinetic energy to overcome intermolecular forces and escape into the gas phase, occurring at temperatures below the liquid’s boiling point. It is governed by factors such as temperature, vapor pressure gradients, relative humidity, surface area, and airflow, and is often described quantitatively using mass-transfer models like Fick’s law or bulk aerodynamic formulations. In research, evaporation plays a central role in hydrology, climate and energy balance studies, industrial drying processes, and surface-atmosphere exchange modeling, influencing latent heat fluxes and boundary-layer dynamics.
When a droplet of water falls on a hot pan, it dances across the surface, skimming on a thin layer of steam like a tiny hovercraft; this is known as the Leidenfrost effect. But now, researchers know what happens when a hot ...
Soft Matter
Mar 3, 2025
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After a decade of preparation and two years of active experiments in space, a facility that Purdue University and NASA's Glenn Research Center in Cleveland designed, built and tested has completed its test campaign on the ...
Space Exploration
Sep 26, 2024
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Splash a few drops of water on a hot pan and if the pan is hot enough, the water will sizzle and the droplets of water seem to roll and float, hovering above the surface.
General Physics
May 24, 2024
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It's the most fundamental of processes—the evaporation of water from the surfaces of oceans and lakes, the burning off of fog in the morning sun, and the drying of briny ponds that leaves solid salt behind. Evaporation is ...
General Physics
Apr 23, 2024
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359
A more efficient way to capture fresh water from the air could be inspired by a phenomenon of motion first glimpsed in bowls of breakfast cereal.
General Physics
Mar 7, 2024
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167
Evaporation is a natural process so ubiquitous that most of us take it for granted. In fact, roughly half of the solar energy that reaches the Earth drives evaporative processes. Since 2017, researchers have been working ...
Nanophysics
Mar 6, 2024
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174
When clouds meet clear skies, cloud droplets evaporate as they mix with dry air. A new study involving researchers from the University of Gothenburg has succeeded in capturing what happens in a model. Ultimately, this could ...
General Physics
Feb 21, 2024
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80
A team of researchers from the National University of Singapore (NUS) has developed a novel super-hygroscopic material that enhances sweat evaporation within a personal protective suit, to create a cooling effect for better ...
Nanomaterials
Mar 25, 2022
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111
Griffith University researchers have solved a problem plaguing droplet-sized micro-reactors which could improve the viability for applications like drug delivery and waste management. Published in Applied Physics Letters, ...
Nanophysics
Feb 8, 2022
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95
Global drinking water scarcity is a severe problem for humans. Water purification consumes a large amount of fossil energy and generates secondary pollution.
Nanomaterials
Nov 9, 2021
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