In cystic fibrosis, this mechanism is far less effective, because the level of salt concentration in the airway surface liquid is far too high.
But, she says, it is still unclear if liquid on the surface of Titan is in the form of puddles, lakes or oceans although the arrival of a spacecraft called Cassini in 2004 might solve the mystery when it drops a probe into Titan's atmosphere.
Yet in order to have liquid water on the surface, Mars had to have a much thicker atmosphere.
In order to have liquid water at the surface, the atmosphere of Mars had to be considerably thicker than it is today.
The reason why that's exciting, is one of the properties we'd like to have on a habitable planet is liquid water on the surface.
In addition to containing the vast majority of the liquid freshwater on the surface of our planet, humans use lakes for more purposes than any other type of water system.
Scientists may not be able to explain the "boiler" at the south pole but they are already talking up the possibility that conditions there could allow for liquid water below the surface - with all the implications that might have.
BBC: NEWS | Science/Nature | Saturn moon delights and baffles
Now striking pictures suggesting the presence of liquid water on the Martian surface have scientists believing we are getting closer to finding out.
Coal ash is disposed of either as a liquid that goes into large surface impoundments or as a solid that is placed into landfills.
"The new material is a liquid-infused elastic porous surface, which is what allows for the fine control over so many adaptive responses above and beyond its ability to repel a wide range of substances, " Prof Aizenberg explained.
How often the Universe has planets truly like the earth - true earth twins, planets the size of the earth, rocky planets with a surface that supports liquid water - well, we don't have that number yet, but I'm optimistic we'll figure it out.
For a liquid piston to work, its surface must be stable in the face of rapidly changing pressures.
When a team of Harvard researchers wanted to create the ultimate liquid- and solid-repelling surface, they looked toward the Nepenthes pitcher plant, where curious insects check in and never check out, thanks to slippery walls that lead to their tiny, horrific fate.
The finding upends previous studies, which had estimated that the Red Planet's internal water stores were scanty at best something of a surprise, given that liquid water apparently flowed on the Martian surface long ago.
MSN: Scientists say parts of Mars interior are as wet as Earth's
That seemed to support the notion that underground liquid water may reside close enough to the surface in some places that it can seep out periodically.
The scientists turned lithium-ion battery materials, such as copper, into a sprayable liquid form, which can be applied to any surface and turn it into an energy storage device.
FORBES: Soon We Might Spray-Paint Batteries Onto Any Surface
Discovery of volcanic ice flows and melting of ice on the surface of Europa that support the premise of liquid oceans underneath.
The Microsoft Surface tablet is constructed from magnesium and manufactured using liquid metal.
FORBES: Microsoft Surface's Liquid Metal Is Not The Same As Apple's LiquidMetal
This is going to be slightly confusing for everyone out there now that Microsoft has announced the Surface, the case of which is made of liquid metal.
FORBES: Microsoft Surface's Liquid Metal Is Not The Same As Apple's LiquidMetal
According to a new computer model, liquid methane in contact with a partially hydrogen-terminated diamond surface at extremely high pressures and temperatures spontaneously forms longer hydrocarbons, and hence the material of crude oil could be formed deep in the earth.
If the planet does harbor liquid water today, it would have to be deep below the surface, perhaps peeking out in a few special places, but not likely to be seen by Curiosity, Squyres said.
Finally the glass surface onto which the apparatus was attached was immersed into a liquid heated to 300C (572F).
They said water seemed to have flowed down two gullies in the past few years, even though liquid water cannot remain long on the planet's frigid, nearly airless surface because it would rapidly freeze or evaporate.
Satellites at Mars have long captured images of channels on the planet's surface that were cut by some kind of flow, assumed to be liquid water.
The habitable zone is the region of a planetary system which is neither too hot nor too cold - such that water on the surface of a planet will neither evaporate nor freeze, but instead can stay liquid.
BBC: NEWS | Science/Nature | Earth-like planets may be common
When these charged droplets come into contact with the surface of the print they collect any substances deposited on it, creating a thin liquid film.
Melting on the ice sheet's surface acts as a feedback mechanism, Dr van den Broeke explained, because the liquid water absorbs more and reflects less of the incoming solar radiation - resulting in a heating of the ice.
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