| 单词 | surface tension |
| 例句 | Spilled tea—or any other liquid— forms throbbing spherical globs in the air: the surface tension of the liquid overwhelms gravity. Cosmos 1980-01-01T00:00:00Z “I read about that in science. It’s the fat breaking the surface tension.” Miracles on Maple Hill 1956-08-01T00:00:00Z He had started with one anomaly, the floating chip of ebony, and discovered another, the floating needle; as a consequence he had done his best to make sense of surface tension. The Invention of Science 2015-09-17T00:00:00Z Galileo was exploring the phenomenon we call surface tension. The Invention of Science 2015-09-17T00:00:00Z “If I rub the needle with the lodestone, I’ll magnetize it. Basically I’ll turn it into a compass needle. If we can get it to float on the water without breaking the surface tension...” Gregor the Overlander 2003-09-01T00:00:00Z He had a tightrope walker’s feel for the land beneath him—its surface tension, the give and take of things. The Things They Carried 1990-01-01T00:00:00Z “There’s a surface tension to the words,” he told me. Denis Johnson in The New Yorker 2017-05-26T04:00:00Z While the basic process of carbonation is relatively simple, a variety of factors — from temperature to surface tension — can affect the taste and quality of beverages. The bubbly chemistry behind carbonated beverages 2023-08-14T04:00:00Z A liquid's surface tension is determined by how strongly the liquid's molecules interact with each other. The bubbly chemistry behind carbonated beverages 2023-08-14T04:00:00Z The lower surface tension from the artificial sweetener means there's more fizz, and for longer, compared with other soft drinks. The bubbly chemistry behind carbonated beverages 2023-08-14T04:00:00Z One final important factor for carbonation is the surface tension of the liquid. The bubbly chemistry behind carbonated beverages 2023-08-14T04:00:00Z The candy helps to weaken the interactions between the water molecules and the CO₂ molecules, lowering the surface tension and allowing for an easier release of CO₂ molecules. The bubbly chemistry behind carbonated beverages 2023-08-14T04:00:00Z There are fishing spiders that rest their forelegs on the surfaces of ponds, ready to sense vibrations of potential prey, using surface tension as if it were a liquid web. Exhibition Review: ‘Spiders Alive!’ at American Museum of Natural History 2012-07-27T21:25:49Z A lower surface tension means the carbon dioxide bubbles form faster and last longer. The bubbly chemistry behind carbonated beverages 2023-08-14T04:00:00Z A surface tension of liquid misery is stretched over this movie, like unshed tears on a brimming eyeball. Biutiful ? review 2011-01-27T15:00:01Z These sweeteners can weaken the interactions between the water molecules, creating a lower surface tension. The bubbly chemistry behind carbonated beverages 2023-08-14T04:00:00Z The work strains against its academic traces and doesn’t quite break free, but its combination of scale, rendering and surface tension is imposing, almost sculptural. Paula Modersohn-Becker and Her Thwarted Ambitions 2016-02-25T05:00:00Z Your belly pooches out, ever more parabolic, while your legs dwindle down to mere sticks, two knobby rods with the surface tension of plucked poultry. Does This Swimsuit Make Me Look Fat? 2011-06-08T20:34:03Z Just as a drop of water can be pulled apart, the surface tension can pull it apart. She Cracked the Mystery of How to Split the Atom, But Someone Else Got the Nobel Prize for the Discovery 2023-09-07T04:00:00Z Little single scullers striding on the surface tension of the pond glide by the turtle-paved bank, can't sink to the muddy bottom. Poems: ‘Water Striders’ and ‘Fallowing’ 2023-08-18T04:00:00Z These cells secrete a substance known as surfactant that helps to decrease the surface tension in the alveoli. Fundamentals of Biology 2015-01-01T00:00:00Z Water’s cohesive forces allow for the property of surface tension. Concepts of Biology 2013-04-25T00:00:00Z These chemicals—which influence wave activity by decreasing the water's surface tension—often accompany microplastics as a by-product of plastic production and breakdown and are carried on the same ocean currents. New Technique Can Map Ocean Plastics from Space 2023-05-05T04:00:00Z Water in the the xylem is held together by surface tension, just like water sucked through a drinking straw. Stressed Plants ‘Cry’—and Some Animals Can Probably Hear Them 2023-03-31T04:00:00Z Before they’re flung, the droplets compress, storing up energy in surface tension. Sharpshooter Insects Use ‘Superpropulsion’ to Catapult Their Pee 2023-02-28T05:00:00Z This tube interacts in nuanced ways with the forces around the animals: drag, surface tension, gravity. Why Fly or Swim When You Can Jump? Ask the Springtail. 2022-11-07T05:00:00Z Right where the air and water meet, there’s surface tension. Sandcastle Engineering: A Geotechnical Engineer Explains How Water, Air and Sand Create Solid Structures 2022-08-23T04:00:00Z Because pressure produced by surface tension decreases with increasing radius, these larger sacs produce smaller pressure, reducing the ability of emphysema victims to exhale. College Physics for AP Courses 2015-08-12T00:00:00Z As a result of this high surface tension, the surface of water represents a relatively “tough skin” that can withstand considerable force without breaking. Chemistry 2019-02-14T00:00:00Z Cohesion and surface tension keep the hydrogen bonds of water molecules intact and support the item floating on the top. Biology for AP Courses 2022-06-09T00:00:00Z Cohesion also causes surface tension, which explains why some bugs can walk on water. Miller & Levine Biology 2018-01-01T00:00:00Z And surface tension also pulls sand grains together. Sandcastle Engineering: A Geotechnical Engineer Explains How Water, Air and Sand Create Solid Structures 2022-08-23T04:00:00Z Mercury, for example, has a very large surface tension and a large contact angle with glass. College Physics for AP Courses 2015-08-12T00:00:00Z The water molecules are thus attracted strongly to one another and exhibit a relatively large surface tension, forming a type of “skin” at its surface. Chemistry 2019-02-14T00:00:00Z Cohesion is the attraction between water and other molecules, which help create surface tension. Biology for AP Courses 2022-06-09T00:00:00Z Cohesion gives rise to surface tension, the capacity of a substance to withstand rupture when placed under tension or stress. Environmental Biology 2018-09-06T00:00:00Z If the glass were much skinnier, like a straw, the water would rise higher and have more surface tension. Sandcastle Engineering: A Geotechnical Engineer Explains How Water, Air and Sand Create Solid Structures 2022-08-23T04:00:00Z You can exhale without muscle action by letting surface tension in the alveoli create its own positive pressure. College Physics for AP Courses 2015-08-12T00:00:00Z They exhibit essentially no surface tension and very low viscosities, however, so they can more effectively penetrate very small openings in a solid mixture and remove soluble components. Chemistry 2019-02-14T00:00:00Z This surface tension is similar to the surface tension of water at the liquid-air interface of a water droplet that results in the bonding of the water molecules together. Biology for AP Courses 2022-06-09T00:00:00Z This occurs because of the surface tension that is created by the water molecules. Environmental Biology 2018-09-06T00:00:00Z Unconsolidated sediments tend to be strongest when they are moist because the small amounts of water at the grain boundaries hold the grains together with surface tension. Physical Geology 2015-01-01T00:00:00Z Large nuclei are described by a liquid drop model with surface tension and oscillation modes, because the large number of nucleons act like atoms in a drop. College Physics for AP Courses 2015-08-12T00:00:00Z Among common liquids, water exhibits a distinctly high surface tension due to strong hydrogen bonding between its molecules. Chemistry 2019-02-14T00:00:00Z Surfactant is a complex mixture of phospholipids and lipoproteins that works to reduce the surface tension that exists between the alveoli tissue and the air found within the alveoli. Biology for AP Courses 2022-06-09T00:00:00Z Cohesion and surface tension keep the water molecules intact and the item floating on the top. Environmental Biology 2018-09-06T00:00:00Z Cohesion is responsible for creating surface tension, which various insects use to walk on water by distributing their weight across the surface. An Introduction to Geology 2017-01-01T00:00:00Z If the gauge pressure inside a rubber balloon with a 10.0-cm radius is 1.50 cm of water, what is the effective surface tension of the balloon? College Physics for AP Courses 2015-08-12T00:00:00Z Some insects, like the one shown in Figure 10.17, even though they are denser than water, move on its surface because they are supported by the surface tension. Chemistry 2019-02-14T00:00:00Z By lowering the surface tension of the alveolar fluid, it reduces the tendency of alveoli to collapse. Biology for AP Courses 2022-06-09T00:00:00Z It is even possible to “float” a steel needle on top of a glass of water if you place it gently, without breaking the surface tension. Environmental Biology 2018-09-06T00:00:00Z Cohesion gives water surface tension, allowing water glider insects to float on the water surface. An Introduction to Geology 2017-01-01T00:00:00Z Is surface tension due to cohesive or adhesive forces, or both? College Physics for AP Courses 2015-08-12T00:00:00Z The surface tension and viscosity of water at several different temperatures are given in this table. Chemistry 2019-02-14T00:00:00Z Surfactant works like a detergent to reduce the surface tension and allows for easier inflation of the airways. Biology for AP Courses 2022-06-09T00:00:00Z The lungs begin producing surfactant, a substance that reduces surface tension in the lungs and assists proper lung expansion after birth. Anatomy and Physiology 2013-06-19T00:00:00Z While love’s pursuit provides the surface tension of “Either/Or,” Selin also investigates the nature of conquest and resistance, dominance and submission. ‘Either/Or,’ Elif Batuman’s sequel to ‘The Idiot,’ will leave you clamoring for more 2022-06-02T04:00:00Z The model of a liquid surface acting like a stretched elastic sheet can effectively explain surface tension effects. College Physics for AP Courses 2015-08-12T00:00:00Z As temperature increases, what happens to the surface tension of water? Chemistry 2019-02-14T00:00:00Z There is high surface tension at the air-airway interface in the lung. Biology for AP Courses 2022-06-09T00:00:00Z A type II alveolar cell is interspersed among the type I cells and secretes pulmonary surfactant, a substance composed of phospholipids and proteins that reduces the surface tension of the alveoli. Anatomy and Physiology 2013-06-19T00:00:00Z Instead, by flicking or undulating their bodies, they skate across the top, buoyed by surface tension—the same phenomenon that allows the liquid in a brimming glass to protrude slightly above the rim. Watch caterpillars walk on water 2021-09-23T04:00:00Z The magnitude of this force depends on the surface tension of the liquid and can be measured accurately. College Physics for AP Courses 2015-08-12T00:00:00Z Artificially innervated foam, or AiFoam, is a highly elastic polymer created by mixing fluoropolymer with a compound that lowers surface tension. Smart foam material gives robotic hand the ability to self-repair 2021-07-06T04:00:00Z Surfactant, a mixture of phospholipids and lipoproteins, acts like a detergent in the airways to reduce surface tension and allow for opening of the alveoli. Biology for AP Courses 2022-06-09T00:00:00Z However, pulmonary surfactant secreted by type II alveolar cells mixes with that water and helps reduce this surface tension. Anatomy and Physiology 2013-06-19T00:00:00Z These fragments each possess a quality akin to surface tension that drives them to reduce their surface area by adopting more stable spherical shapes, much as bubbles do, Wilson explains. Mystery of Spinning Atomic Fragments Solved at Last 2021-02-24T05:00:00Z The inward surface tension force causes bubbles to be approximately spherical and raises the pressure of the gas trapped inside relative to atmospheric pressure outside. College Physics for AP Courses 2015-08-12T00:00:00Z The first is simply breaking the surface tension to get through. Watch hummingbirds ‘dance’ through waterfalls 2020-08-18T04:00:00Z Cohesion allows for the development of surface tension, the capacity of a substance to withstand being ruptured when placed under tension or stress. Biology for AP Courses 2022-06-09T00:00:00Z The surface tension of the alveoli also influences pressure, as it opposes the expansion of the alveoli. Anatomy and Physiology 2013-06-19T00:00:00Z Water is unlike most other liquids on Earth: it has at least 66 weird properties, including high surface tension, high heat capacity, high melting and boiling points and low compressibility. Daily briefing: Water might be so unusual because it’s actually two liquids in one 2020-04-07T04:00:00Z Figure 11.32 Sliding wire device used for measuring surface tension; the device exerts a force to reduce the film's surface area. College Physics for AP Courses 2015-08-12T00:00:00Z It rests on the principles of adhesion, cohesion and surface tension, which are properties shared by many liquids. The Miracle of Capillary Action 2020-02-13T05:00:00Z Water’s cohesive forces allow for the property of surface tension, whereas its adhesive properties are seen as water rises inside capillary tubes. Biology for AP Courses 2022-06-09T00:00:00Z This lubrication reduces friction between the two layers to prevent trauma during breathing, and creates surface tension that helps maintain the position of the lungs against the thoracic wall. Anatomy and Physiology 2013-06-19T00:00:00Z On the other hand, this was a derby-day occasion with all the powerful surface tension of lukewarm custard tart. José Mourinho puts on humble front but shows signs of sparking old fires | Barney Ronay 2019-11-23T05:00:00Z You can exhale without muscle action by allowing surface tension to contract these sacs. College Physics for AP Courses 2015-08-12T00:00:00Z Finally, surface tension is the property of the surface of a liquid that allows it to resist an external force because of the cohesive nature of its molecules. The Miracle of Capillary Action 2020-02-13T05:00:00Z Insects can walk on water because of its high surface tension. Biology for AP Courses 2022-06-09T00:00:00Z Pulmonary surfactant is critical for inflation to occur, as it reduces the surface tension of the alveoli. Anatomy and Physiology 2013-06-19T00:00:00Z Is it “simply attributable to the bare bones of the theory of bubbles, that is, just the elementary laws of surface tension, as laid down by Plateau? For this purpose, are cells just bubbles?” In Bubbles, She Sees a Mathematical Universe 2019-04-08T04:00:00Z Even if there is paralysis, surface tension in the alveoli will expel air from the lungs. College Physics for AP Courses 2015-08-12T00:00:00Z To minimize the forces of surface tension, a bubble forms in the shape with the least amount of area to wrap around a given volume — a sphere. Karen Uhlenbeck Is First Woman to Win Abel Prize for Mathematics 2019-03-19T04:00:00Z In another example, insects such as the water strider, shown in Figure 2.19, use the surface tension of water to stay afloat on the surface layer of water and even mate there. Biology for AP Courses 2022-06-09T00:00:00Z As noted earlier, there is surface tension within the alveoli caused by water present in the lining of the alveoli. Anatomy and Physiology 2013-06-19T00:00:00Z Frosted Mini Wheats are essentially tiny milk sponges that load up on liquid by way of the surface tension created by the thin strands that comprise each individual wheat. The official breakfast cereal power rankings: Part I 2019-03-12T04:00:00Z The surface tension of their mucous lining aids in exhalation and can prevent inhalation if too great. College Physics for AP Courses 2015-08-12T00:00:00Z Agents, reporters, coaches, executives pack the place, swapping rumors, trading information and tipping back heavy glasses filled to the point of surface tension. Perspective | The NFL combine you don’t see on TV is fueled by information and lubricated by wine 2019-03-02T05:00:00Z Cohesion is the attraction between the water molecules, which helps create surface tension. Biology for AP Courses 2022-06-09T00:00:00Z This surface tension tends to inhibit expansion of the alveoli. Anatomy and Physiology 2013-06-19T00:00:00Z The researchers also showed that surface tension was important. Geckos Can Run on Water 2018-12-11T05:00:00Z During exhalation, the molecules slide back together and the surface tension decreases, helping to prevent a collapse of the alveoli. College Physics for AP Courses 2015-08-12T00:00:00Z Systematic studies in which the fibre radius, strength of the adhesive interaction and surface tension of the membrane are varied would improve our understanding. Nanofibres induce remodelling of cell membranes 2018-11-04T04:00:00Z Cohesion is the attraction between the water molecules, which helps create surface tension. Biology for AP Courses 2022-06-09T00:00:00Z However, pulmonary surfactant helps to reduce the surface tension so that the alveoli do not collapse during expiration. Anatomy and Physiology 2013-06-19T00:00:00Z The form reflects Mr. Wagener’s recent penchant for simplified exterior surfaces, emphasizing smooth curvatures, surface tension and volumes over slashing character lines. 2019 Mercedes-Benz CLS: A Move Toward Electrification 2018-08-03T04:00:00Z The surface tension for lung surfactant decreases with decreasing area. College Physics for AP Courses 2015-08-12T00:00:00Z Although it’s made of discrete particles, the average nucleus acts more like a droplet of fluid with surface tension. How many neutrons can you cram into an atom? More than physicists thought 2018-07-20T04:00:00Z Cohesion is the attraction between the water molecules, which helps create surface tension. Biology for AP Courses 2022-06-09T00:00:00Z It reduces the surface tension of the alveoli. Anatomy and Physiology 2013-06-19T00:00:00Z Later he shifted up a gear and became a traumatic prospect for Croatia’s left side, covering the ground like a pond-skater, barely breaking the surface tension. Kylian Mbappé the top ticket in French collection of bottomless talent | Barney Ronay 2018-07-15T04:00:00Z If water gets into the lungs, the surface tension is too great and you cannot inhale. College Physics for AP Courses 2015-08-12T00:00:00Z The team calculates that for masses below about 300 times that of the proton, ordinary nuclei are stable because effects akin to surface tension increase quark matter’s energy. Weird new form of nuclear matter might lie just beyond experimenters' grasp 2018-05-15T04:00:00Z Hardy, S. C. A grain boundary groove measurement of the surface tension between ice and water. Role of stacking disorder in ice nucleation 2017-11-07T05:00:00Z Image: Harvard School of Engineering and Applied Sciences To solve this problem, researchers from Harvard’s outfitted the RoboBee with a tiny combustible rocket, giving it the oomph needed to break the water’s surface tension. Robot bees can now dive in and out of water using tiny combustible rockets 2017-10-25T04:00:00Z Buller hypothesized that when the tiny sphere of fluid — it’s now called the Buller’s drop — touched the liquid on the spore, the two merged, releasing the surface tension energy and launching the spore. Fungi Physics: How Those Spores Launch Just Right 2017-07-27T04:00:00Z The tendency of surface tension is always to reduce the surface area. College Physics for AP Courses 2015-08-12T00:00:00Z On its own terms, “The Beguiled” is a finely crafted, gemlike exercise in surface tension and subterranean stirrings. Review | With ‘The Beguiled,’ Sofia Coppola explores yet another insular female universe 2017-06-29T04:00:00Z It’s all down to the surface tension of water – the thing that gives the “meniscus”, or skin, to a glass of water and holds down that glass when placed on a wet bar top. How to Build the Perfect Sandcastle--According to Science 2017-06-23T04:00:00Z “Beatriz at Dinner” is a delicate, mournful, mystical little movie about the porous membrane that defines all our bubbles, and how tenuous its surface tension can be when severely tested. Review | Salma Hayek is mournfully radiant in the gentle parable ‘Beatriz at Dinner’ 2017-06-14T04:00:00Z This movement is hampered by surface tension, the effects of which increase as the dimensions of the pipework diminish. How to empty the ketchup bottle every time 2016-12-01T05:00:00Z The height is directly proportional to the surface tension γ , which is its direct cause. College Physics for AP Courses 2015-08-12T00:00:00Z Talk is the stuff of life in these books: deft and provoking talk that draws on an array of then-current ideas and yet holds steady the surface tension of the story. History: Untangling Alice : Nature : Nature Research 2016-11-15T05:00:00Z The Ether Flow diaphragm is pleated like an accordion, which allows it to expand and contract without changes in surface tension, which in turn helps to minimize distortion. MrSpeakers makes world-class headphones 2016-09-28T04:00:00Z With the inverted Cheerios effect, attraction or repulsion is a result of an interplay between elasticity and surface tension. ‘Inverted Cheerios Effect’ Returns Physics to the Breakfast Table 2016-07-13T04:00:00Z Materials like shampoo and oil are hard to repel because of surface tension, or the attractive force among the molecules in a liquid. Bottles That Could Make Every Drop of Shampoo Count 2016-06-26T04:00:00Z Construct a problem in which you calculate the loss of pressure due to surface tension in the alveoli because of their larger average diameters. College Physics for AP Courses 2015-08-12T00:00:00Z Jobs also encouraged the young designer to add surface tension to the interior, just as he’d done to the exterior with its simple, muscular lines. The secret car that caught Steve Jobs’ eye – and may offer clues to Apple's own 2016-06-09T04:00:00Z This corresponds to a surface tension of 23 mN m−1, which is a reasonable value for organics64. The role of low-volatility organic compounds in initial particle growth in the atmosphere : Nature : Nature Publishing Group 2016-05-24T04:00:00Z The Cheerios effect results from surface tension and gravity. ‘Inverted Cheerios Effect’ Returns Physics to the Breakfast Table 2016-07-13T04:00:00Z Furthermore, the group found that it could tune the defects' motion by adjusting the vesicle's diameter and surface tension, suggesting a possible way to control an active crystal. The physics of life 2016-01-04T05:00:00Z Among the things to consider are the normal surface tension of the fluid lining the alveoli, the average alveolar radius in normal individuals and its average in emphysema sufferers. College Physics for AP Courses 2015-08-12T00:00:00Z In this activity you will explore another example of surface tension in action, and you will discover that other factors influence droplet behavior, too. Dancing Droplets 2015-11-05T05:00:00Z And the pipette's tip is small enough to avoid ruining the surface tension, which would let fluid escape up the tube. Zero-gravity genomics passes first test 2015-10-12T04:00:00Z “It’s a result of surface tension and curvature of a surface,” Dr. Weislogel said. A Glass for Enjoying a Sip of Whisky While Floating in Space 2015-09-03T04:00:00Z Moreover, the shape of the tips of their legs were curved to adapt to the dimples that formed on the water’s surface when the legs pushed downward, thereby maximizing the surface tension the legs experienced. These Insect-Inspired Robots Can Jump on Water 2015-08-04T04:00:00Z Explain why, and discuss whether surface tension enhances or reduces the effect in each case. College Physics for AP Courses 2015-08-12T00:00:00Z In liquids surface tension is the property responsible for the shape of liquid droplets. Dancing Droplets 2015-11-05T05:00:00Z The authors theorized that the maximum force of the striders' legs is always just below the maximum force that water surface tension can withstand. Minority Report-type insect robots jump on water 2015-07-30T04:00:00Z Paint flung from a spinning rod illustrates the effects of adhesion, surface tension, and centrifugal force. Physics Week in Review: June 27, 2015 2015-06-27T04:00:00Z The nonstick coatings that worked best to slough off bug guts are similarly rough, like fine-grade sandpaper, and use surface tension to help roll off insect remains. NASA tests nonstick aircraft wing coatings that let bug juice slide 2015-06-27T04:00:00Z Related: Biggest Women’s World Cup to kick off in Canada amid surface tension At its heart lay a habitation soon to be named “Moncton”. Women’s World Cup offers England chance to reach new frontiers 2015-06-05T04:00:00Z But there is no life, no intent in the activity, only the results of evaporation and surface tension. Tiny Internal Tornadoes Bring Drops to Life 2015-03-23T04:00:00Z Then, because water has higher surface tension than food coloring does, the more concentrated water at the center pulled the liquid and particles back in. 2 Common Liquids Spontaneously Form Dancing Droplets [Video] 2015-03-11T04:00:00Z The drop with the higher surface tension flees, as the other stays right on its heels. Video: Why these colored droplets appear to be alive 2015-03-11T04:00:00Z The image reminds me of Ricketts himself: he moved on the surface tension between two very different realms, science on one side, literature and philosophy on the other. In retrospect: Between Pacific Tides : Nature : Nature Publishing Group 2014-12-16T05:00:00Z Surfactants contribute to a phenomenon called the Marangoni effect, in which a liquid’s evaporative flows are driven by variation in surface tension. Physicists Solve Mystery of Scotch Whisky Rings [Slide Show] 2014-11-24T05:00:00Z To get around the lack of gravity, they modified the printer so that the surface tension of molten plastic keeps each layer sticking together. NASA is about to send a 3D printer into space for the first time 2014-09-19T04:00:00Z This continuous flow, caused by the evaporation process and the difference in surface tension between the two fluids, holds the droplet in place so it cannot spread out. 2 Common Liquids Spontaneously Form Dancing Droplets [Video] 2015-03-11T04:00:00Z Suncor will begin commercial production within a year using solvents that include butane, propane and a proprietary substance that weakens the surface tension between liquids and solids. The steam from below 2014-09-04T04:00:00Z We hardly notice surface tension, but it plays a big role in life at large. [News Focus] Water's Tough Skin 2014-03-13T18:25:23.452Z Compounds that lower water’s surface tension are known as surfactants. Surfactant Science: Make a Milk Rainbow 2014-03-13T18:00:00Z Prior studies suggested that in space blood’s surface tension it to mostly pool near wounds instead of floating. During Medical Emergencies on Deep-Space Flights Fluid-Filled Domes Could Stanch Bleeding 2014-03-11T11:00:00Z Similar droplets form when any two nonreactive liquids mix, as long as one has higher surface tension and evaporates more quickly. 2 Common Liquids Spontaneously Form Dancing Droplets [Video] 2015-03-11T04:00:00Z The difference in alcohol content between the two liquids creates a gradient in surface tension, propelling the boat forward via a phenomenon called the Marangoni effect. Chefs and Scientists Design Bioinspired Cocktail Gadgets 2014-02-10T17:59:00Z Biologists have tended to ignore the air-water interface, but at a recent symposium, the power of surface tension became clear and not just for small creatures. [News Focus] Water's Tough Skin 2014-03-13T18:25:23.452Z This creates a difference in surface tension, propelling the boat forward in a phenomenon called the Marangoni effect. Cocktail Accessories Modeled after Nature s Survival Mechanisms 2013-11-10T13:45:00.597Z The blob stayed in place, held by surface tension. How Chris Hadfield Conquered Social Media From Outer Space 2013-06-28T15:22:00Z Mayonnaise is not just a sandwich spread, but a wonder of surface tension between droplets of oil. How to Freak out a Foodie 2013-02-17T20:00:48Z Scientists once thought the explanation lay in capillary action, the phenomenon by which liquid flows up thin tubes through surface tension alone. Video: Tricks of the Hummingbird's Tongue 2012-10-17T00:10:00Z Fujishima found titanium dioxide could be a catalyst for producing hydrogen from water when subjected to sunlight and later that water on its surface forms a film rather than the droplets dictated by surface tension. Quantum teleportation tipped for Nobel Prize: Thomson Reuters 2012-09-19T04:11:51Z The surface tension then pulls the sand particles together to develop the frictional strength that makes the castle stand up. Letters: Something New, Please (1 Letter) 2012-08-20T22:34:23Z The most common way of imagining what scientific literacy might look like is to see it as knowing a few important bits of science: the laws of thermodynamics, what surface tension is, theory of evolution. On the merits of science literacy 2012-07-04T16:56:06Z The regional finalists include student ideas for microgravity experiments exploring how a snowflake forms, how convection works and how different types of liquids interact with compounds that lower their surface tension. YouTube Space Lab Winners Experiments to Fly on ISS 2012-03-22T22:45:01.987Z The secret to making bubbles is surface tension. Blow the Best Bubbles 2011-12-01T15:15:00.210Z The surface of the mercury was covered with dilute sulphuric acid to remove irregularities due to varying surface tension acting on the steel rod. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 4 "Grasshopper" to "Greek Language" 2011-11-28T03:00:19.517Z For example, liquids with a high surface tension, like water, may form a raised droplet, because the molecules are very attracted to one another and not so attracted to the air. The Future of Inks, Paints and Coatings Takes Shape 2011-08-18T15:12:00Z It is not laws of thermodynamics, surface tension or evolution; it is newer, rougher, uncertain and complex networks of science-in-the-making. On the merits of science literacy 2012-07-04T16:56:06Z Soapy water makes it hard to break the surface tension. In the Garden: Finding the Potential in Vacant Lots 2011-08-03T23:06:38Z This is what creates the force known as surface tension. Blow the Best Bubbles 2011-12-01T15:15:00.210Z At the actual crossings the black appears to run up the narrow angle somewhat like ink would under the influence of surface tension. Visual Illusions Their Causes, Characteristics and Applications 2011-06-02T02:00:25.247Z Both the shape that liquid droplets take, and the way the shape changes as the droplets evaporate, is greatly influenced by surface tension at the air-liquid interface. The Future of Inks, Paints and Coatings Takes Shape 2011-08-18T15:12:00Z To illustrate how surface tension actually propels liquids, van Hemmen points to something called "tears of wine." Venom Tears 2011-05-13T20:17:00Z Another of the Blue Origin researchers, Steven H. Collicott of Purdue University, is looking at how surface tension — the force that causes raindrops to roll up into beads on leaves — pulls liquids in space. Space Tourism: One Giant Leap for Researchers 2011-02-28T17:30:16Z This analysis of the phenomena of surface tension shows how far the principle of negation of perpetual motions can carry us, into regions which at first sight might be classed as molecular. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z But here he is, spinning about, like the most tremendous of water-boatmen—you know those insects?—kept up by surface tension. Boon, The Mind of the Race, The Wild Asses of the Devil, and The Last Trump; Being a First Selection from the Literary Remains of George Boon, Appropriate to the Times 2011-01-16T03:00:20.530Z In contrast, liquids with lower surface tension, like alcohols, are more likely to form flat spots instead of curved droplets. The Future of Inks, Paints and Coatings Takes Shape 2011-08-18T15:12:00Z The surface tension of a fluid arises from the interaction of molecules in the fluid. Venom Tears 2011-05-13T20:17:00Z Yet ultimately, experts say, current Chinese posturing is just the surface tension of a far greater and slower geo-political shift. On North Korea and More, China Flexes Its Muscles 2010-07-22T22:30:00Z Another tactic is to inject soap into the ground to break the surface tension that makes leftover oil cling to the rock. 2010-01-07T16:00:00Z Professor d'Arsonval supposes that this missing step is a variation in the surface tension of the liquid in the muscular fibre. The Mechanism of Life The Yodh group found that elongated particles in a liquid behave differently than round ones because of the way they are affected by the surface tension of the air-liquid interface. The Future of Inks, Paints and Coatings Takes Shape 2011-08-18T15:12:00Z This film of wine, hoisted upwards by the difference in surface tension, collects and forms into tear-shaped droplets. Venom Tears 2011-05-13T20:17:00Z "What would cause the surface tension to break down like that?" The Year When Stardust Fell This condition brings into play all the phenomena resulting from surface boundaries between solids and liquids, liquids and liquids, liquids and gases, etc., from surface tension, surface energy, etc. The Chemistry of Plant Life The surface tension of a liquid is due to the unbalanced forces of cohesion acting on the surface layer of molecules. The Mechanism of Life This reduction of the surface tension you can see if I use the same wire frame a third time. Soap-Bubbles and the Forces Which Mould Them The deadly fluid from the venom gland moves along the open groove in the snake's fang because of the differences in surface tension between the venom inside and outside of the groove. Venom Tears 2011-05-13T20:17:00Z You've got to decide whether or not this problem of the destruction of surface tension of metals is the most absorbing thing in the whole world. The Year When Stardust Fell This results in a state of tension, known as "surface tension," with the development of resultant forces and energy which profoundly affect the chemical reactivity of the molecules which are present in this surface layer. The Chemistry of Plant Life A liquid surface contains a quantity of energy equal to its surface tension multiplied by its area, hence any variation either of area or of tension corresponds to a variation of its energy. The Mechanism of Life From this the weight of a drop of any liquid of which the density and surface tension are known, can be calculated. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" They say that many snakes kill not by injecting poison under pressure via a syringe-like tube, but rather by the force of surface tension along an open groove. Venom Tears 2011-05-13T20:17:00Z Its presence breaks down the surface tension, as we had supposed. The Year When Stardust Fell The so-called "surface energy," which results from this surface tension, produces marked increases in the possibility of chemical reaction between the materials which are present at the surface boundaries. The Chemistry of Plant Life These forms are due, as I shall show later on, to the surface tension of the oily precipitate; B�ttger gives no explanation of the phenomenon. The Mechanism of Life Draining reduces the “surface tension” of the capillary water by removal of the excess, but the “water-table” may be many feet below. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" Remembering back, I figured this meant there was no surface tension, which reminded me that part of this mixture was made of detergent. The Water Eater The mechanical causes of the suspension of the surface tension are inquired into, and striking examples of pseudopod-like rays are found in the inorganic world, for instance, in a drop of oil. Naturalism And Religion Fats distributed through a watery liquid in this finely divided condition form together what is called an emulsion, in which the particles of fat are kept apart by surface tension. The Bacillus of Long Life a manual of the preparation and souring of milk for dietary purposes, together with and historical account of the use of fermente In consequence of this surface tension the liquid has a tendency to assume the form in which its surface area is a minimum, i.e. the spherical form. The Mechanism of Life At the critical point liquid and vapour become identical, and, consequently, as was pointed out by Frankenheim in 1841, the surface tension is zero at the critical temperature. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" These motor units are supported on the surface of the water by an intensifying of the surface tension in their immediate area. Navy Day Tubes showing this appearance should be liquefied and again allowed to set before use for stab culture, otherwise when the needle enters the medium, the surface tension will cause the gelatine cylinder to split. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. When cream is agitated in a particular way, as by churning, the surface tension of the particles is overcome, and they run together into a mass which forms butter. The Bacillus of Long Life a manual of the preparation and souring of milk for dietary purposes, together with and historical account of the use of fermente We may therefore regard this surface tension as acting the part of a veritable physical membrane. The Mechanism of Life Thus the surface tension explains the recoil, and it is also closely connected with the formation of the subordinate rays and arms. The Splash of a Drop His feet rested on nothing—and yet there was some sort of tension under him—like the surface tension of water. The 4-D Doodler They struggled not from any rational motivation but from long stubbornness, from habit, as a fly kicks six-legged and constant against the surface tension of a trapping pool. Rebels of the Red Planet On the moon, the surface tension of the ink was exactly the same as on earth, but the gravity was five-sixths less. Operation: Outer Space The molecular behavior of liquids differs from that of gases only in what is called surface tension. The Breath of Life This can be shown by calculation to be a consequence of the surface tension, and the calculation has been closely verified by experiment. The Splash of a Drop Further, the pressure inside such a thread due to a surface tension equal to that of water would be 60 atmospheres. Scientific American Supplement, No. 717, September 28, 1889 No stimulus, perhaps more mercifully and effectually breaks the surface tension of consciousness, thereby conditioning the mind for a stronger forward movement, than that of humor. More Toasts She goes about over her facts like those insects that run over water sustained by surface tension. Nocturne Any one to whom chapter twenty-one seems incredible should consult an adequate encyclopedia article or an authoritative treatise on physics and read up on the surface tension of liquids. The Unwilling Vestal Frequently, the force that makes capillary water possible is called surface tension. Dry-Farming : a System of Agriculture for Countries under a Low Rainfall |
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