Sentences with phrase «water droplets at»

Clouds that consist of water droplets at temperatures below 0 ° C. are called supercooled clouds, and they are of great importance in the formation of rain.

Since many cats like playing with the water droplets at the kitchen or bathroom faucet, offer the water fountain as a better alternative.

«Many applications, such as power plant reactors, require the management and control of the movement of water droplets at very high temperatures,» says Wang, an associate professor of mechanical and biomedical engineering at City University.

Not exact matches

Heat approximately 1/2 a cup of oil in a large skillet until it spits when a water droplet is flicked at it.

* We think this might be because an oil droplet was trapped inside a food colouring droplet and sank, but as the edges of the food colouring droplet diffused into the water suddenly the drop became lighter than the surrounding water (thanks to the less dense oil at the centre) and floated upwards quickly...

Supercooled water droplets in a cloud can remain liquid at temperatures far below freezing, their surface tension preventing solid crystals from forming.

Cooling towers at nuclear sites or chemical plants can release water droplets tainted with toxins, which the wind carries away.

Now, materials scientist Vance Bergeron and co-workers at Rhodia Recherches in Saint Fons, France, have shown that adding only 0.1 grams of the springlike polymer polyethyleneoxide to a liter of water can prevent droplets from splashing.

Now Yanlin Song and his team at the Chinese Academy of Sciences, Beijing, have shown that this frost repellency arises because water droplets...

If the crystal encounters additional water droplets on the way down, riming can continue to the point at which the entire crystal is enveloped in an icy armor.

Unlike traditional pipettes, which draw up liquids using suction, the liverwort relies on the surface tension of the water to hold droplets, says study coauthor Hirofumi Wada, a physicist at Ritsumeikan University in Kusatsu, Japan.

Many clouds at mid-latitudes make rain by freezing water into ice crystals (which fall from the cloud then melt before they hit the ground), rather than by coalescing warm water droplets together.

Sea spray droplets are aerosol water particles that are ejected into the atmosphere as waves break at the ocean surface.

Ice crystals do not form easily, so water droplets can persist in the atmosphere even at temperatures far below freezing.

To work out how to enable liquid metal to move autonomously, Professor Kourosh Kalantar - zadeh and his group from the School of Engineering at RMIT first immersed liquid metal droplets in water.

But if the sun shines in at a low angle, they can also appear when water droplets affix to certain surfaces, like the dew on this spiderweb.

At night the chamber is opened, allowing ambient air to diffuse through the porous MOF and water molecules to stick to its interior surfaces, gathering in groups of eight to form tiny cubic droplets.

To copy the beetle's water - collecting design, materials scientist Michael Rubner, chemical engineer Robert Cohen, and colleagues at the Massachusetts Institute of Technology in Cambridge created a rough coating so water repelling — or hydrophobic — that water sprayed onto it stood up in nearly spherical droplets.

The favoured explanation has been that the large water droplets produced by clouds collide with one another to release watery shrapnel that produces the abundant smaller droplets seen at ground level.

For one test, the team suspended a particle of sodium at one node, and a droplet of water at another — and then brought them together in a burst of fizzing (see a video at bit.ly / LevitationVid).

Smaller, dispersed droplets are less threatening for two reasons: they present more surface area to the water, so ocean bacteria can degrade the oil faster; plus, the small droplets are much slower to rise to the surface, keeping the oil at sea instead of in coastal wetlands and giving the bacteria more time to do their magic.

And even the light that does reflect from potential obstacles will arrive at different times, having been deflected by water droplets on both the way out and the way back.

Because of their near - spherical shape, the droplets meet the surface at a high angle — above 150 ° if the water is sitting on a superhydrophobic surface.

Using microscopic video recordings, the team showed that underwater oil droplets flowed continuously along the needles at a rate of 2 millimeters per second, similarly to the way water moves along cactus needles, the team reports online today in Nature Communications.

When petroleum leaks from a ship or a deep - water drilling operation, «it tends to break up into tiny droplets that don't all end up on the surface of the ocean,» says Thomas Azwell, an environmental scientist at the University of California (UC), Berkeley, who was not involved in the work.

As he and his collaborators put it, «with at least a boundary layer of water on the diatoms, secreted oil droplets would separate under gravity, rising to the top of a tilted panel forming an unstable emulsion, which should progressively separate.

A team at the University of Nottingham used a simulation that matches experimental and in situ observations to characterize ice on a spectrum between rime ice that forms from water vapor and glaze ice that forms from supercooled water droplets.

When a water droplet refracts sunlight, it changes the angle at which the light travels both as it enters and exits the droplet.

The water droplets in the rainbow cause these different colors to be viewed at slightly different angles and thus to appear as separate colors.

In - flight ice forms at altitudes up to 7300 metres (24,000 feet), when the aircraft's surfaces hit supercooled water droplets suspended in the air.

Distinguished Professor of Chemical and Biomolecular Engineering at Lehigh, for example, has published articles with his students in Science and Langmuir describing their successful efforts to direct the movement of water droplets on surfaces.

Whereas a hydrophilic surface allows droplets to spread across it at a small contact angle, a water - repelling hydrophobic surface will force droplets to bead up and form a larger angle.

Sprayed from planes or boats, dispersants reduce the surface tension at the oil - water interface, allowing waves to break the slick into tiny droplets.

This involved the equivalent of a micro-faucet of distilled water that used vibration to drip at a set rate and droplet size.

«They line up at the oil - water interface and create a barrier that prevents the water droplets from banging together, coalescing, and settling out of the oil.»

Gregory and Jolanta Watson at the University of the Sunshine Coast in Queensland, Australia, and their colleagues observed small water droplets condensing on the scales of the gecko Lucasium steindachneri in humid conditions.

«Probability density function,» a statistical representation of the likelihood of something occurring at any point in time, was used to examine cloud properties, including vertical motion, liquid and ice water content, and the conditions of cloud particle growth, including how ice crystals grow at the expense of liquid droplets.

«We found that exposing particles to sunlight makes the particles increasingly more oxidized and acidic, which in turn makes it easier for such particles to nucleate water and make cloud droplets,» said Professor Sergey Nizkorodov, a physical chemist at UCI who led the study.

Taking a closer look at the properties of water droplets and ice crystals within clouds, the team found that pollution resulted in smaller droplets and ice crystals, regardless of location.

It is produced when an INP is immersed in a droplet of water at temperatures lower than 0 °C.

The particles in turn create heat, and the water droplets evaporate at a faster pace.

What makes bijels remarkable is that, rather than just making the spherical droplets that we normally see when we try to mix oil and water, the particles at the interface shape the liquids into complex networks of interconnected fluid channels.

Simultaneously, as the average liquid droplet becomes smaller through evaporation, the vapor's density increases, so more vapor molecules merge at a faster rate to become microscopic liquid droplets, and more water molecules are ionized.

Because stomata of the plant usually close at night, water can squeeze out at the edges and tips of leaves, gathering in droplets.

Principal investigator Livia Eberlin, a chemistry professor at the University of Texas at Austin, explained that it's designed to gently extract small molecules from the surface of living tissue using nothing but a suspended droplet of water.

(1) Left Image: Water with Droplets Courtesy of Wikimedia Similarly, just like water, bio-identical hormones are safe and beneficial when used at proper dosWater with Droplets Courtesy of Wikimedia Similarly, just like water, bio-identical hormones are safe and beneficial when used at proper doswater, bio-identical hormones are safe and beneficial when used at proper dosages.

The mask's gel - balm - like texture breaks down into tiny water droplets which helps it melt onto skin to deliver moisture as you rest... or while you try to at least.

There are so many amazing shots running through our minds right now — one of the opening shots from inside Darlene's car, fireworks exploding behind suburban roofs; the tracking shot of the cab (whose driver would meet his fate at the corner of Washington and Cherry), which pivots as the cab turns; the way Savides captured the droplets of water that dot Jake Gyllenhaal «s face as he knocks on Mark Ruffalo's door at the end of the movie.

The first time Curry tried this was in a 2010 exhibition at David Kordansky Gallery, Los Angles; there, the screen - printed wallpaper bore a pattern of water droplets — synonymous, especially in advertising with pristine freshness.

# 339 My penultimate sentence should have read «Clouds comprise (water) ice - crystals, droplets and vapour at the relevant phase transition interfaces in chaotic combination, involving imponderable exchanges of heat energy.»