When fog forms below 0C, its super-cooled water droplets remain liquid, even though the temperature is below freezing.
Unlike the Storm screen technology, this one is not affected by moisture or water droplets.
The water droplets themselves can be as small as a nanometre (a billionth of a metre) across.
This should be possible by making seeds that increase the number of water droplets in the clouds.
These are the tiny airborne particles around which water droplets form, thus catalysing the condensation of clouds.
The microscopic whiskers can stop bacteria in a face mask or filter out water droplets in a hospital's air conditioner.
The suspect behind SARS, a coronavirus, is smaller than that but comes encased in water droplets that get caught outside the mask.
It consists of condensed water droplets and is associated with a column of air that rotates as it is drawn into the cloud.
Such clouds would persist for an unusually long time because small water droplets are less likely than big ones to turn into rain.
This week, a team of Finnish researchers did what we would have thought was impossible, building an electricity-free computer that's powered by water droplets.
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One way to increase the probability of rain is to seed the formation not of water droplets, but of ice crystals, an important step in precipitation.
The ions in turn transfer their charges to any water droplets that might be present, causing them to attact aerosols, which makes them more effective centres of condensation.
These are able to measure the spectrum of the light reflected from a cloud so accurately that Dr Rosenfeld could deduce the average size of its water droplets from the amount of light that they reflected.
The thing is beautiful -- and yeah, we can confirm, as Kaz suggested, that you really do want to stick out your hand and touch the picture when you're standing in front of it, particularly, when the video cycles through images of the ocean, with water droplets hitting the screen.
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As the wool is transported up these ramps any droplets of water attached to it will be shaken off.
Such particles act as nuclei for the condensation of water vapour into the droplets of which clouds are composed.
Twenty million metric tons of sulfur dioxide mixed with droplets of water, creating a kind of gaseous mirror, which reflected solar rays back into the sky.
It is contracted by breathing in small droplets of contaminated water.
The soap molecules then gather up into droplets in which all the "water-loving" ends face outward.
Using a particle accelerator, he demonstrated that cosmic rays colliding with molecules in the atmosphere can, in fact, cause gaseous water vapor to condense into cloud-forming droplets.
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