| 单词 | capillary action |
| 例句 | Moistening the clay was easy—capillary action will draw up water from the floodplain, which has a high water table. 1491 2005-10-10T00:00:00Z Water rises through the clay to meet it, but cannot proceed further because the sand is too loose for further capillary action. 1491 2005-10-10T00:00:00Z It rose into my conscience slowly, like a capillary action. My life in a turban 2012-09-11T00:00:00Z The activities will include investigating capillary action, using electricity to make a nickel resemble a penny and envisioning a world in which everyone wears invisibility cloaks. Spare Times for Children for April 4-10 2014-04-03T22:56:28Z As with Horie’s invention, capillary action pulled ink through a filter — similar to the one in a cigarette — to the paper’s surface when a writer pressed the highlighter to paper. Who Made That?: The Hand-Held Highlighter 2012-01-22T08:45:49Z Researchers used to assume these birds relied on capillary action—the tendency of a liquid to flow up a narrow tube—to take in nectar. How the tongue shaped life on Earth 2023-05-24T04:00:00Z Through the process of capillary action, contaminated water and liquefying waste, like that deposited in latrines, could travel to the sources of public drinking water. World History: from 1400 2022-12-14T00:00:00Z Fill the reservoir about every three weeks, she says, and capillary action does the rest. How to use plants to beautify and define your indoor spaces | Produced by Seattle Times Marketing 2022-09-22T04:00:00Z One important phenomenon related to the relative strength of cohesive and adhesive forces is capillary action—the tendency of a fluid to be raised or suppressed in a narrow tube, or capillary tube. College Physics for AP Courses 2015-08-12T00:00:00Z It is partly by capillary action occurring in plant cells called xylem that water and dissolved nutrients are brought from the soil up through the roots and into a plant. Chemistry 2019-02-14T00:00:00Z But for hummingbirds, which flick their tongues 15 times per second as they drain each flower and quickly move on, capillary action just isn’t fast enough, Rico-Guevara says. How the tongue shaped life on Earth 2023-05-24T04:00:00Z This type of adhesion is called capillary action, and is illustrated in Figure 2.18. Biology for AP Courses 2022-06-09T00:00:00Z The tendency of water to rise in a thin tube is called capillary action. Miller & Levine Biology 2018-01-01T00:00:00Z Calculate the ratio of the heights to which water and mercury are raised by capillary action in the same glass tube. College Physics for AP Courses 2015-08-12T00:00:00Z These are examples of capillary action—when a liquid flows within a porous material due to the attraction of the liquid molecules to the surface of the material and to other liquid molecules. Chemistry 2019-02-14T00:00:00Z The pores in the capillary fringe are filled because of capillary action, described in the Properties of Water section above. An Introduction to Geology 2017-01-01T00:00:00Z Water moving up from the roots of plants to the leaves as a result of capillary action is because of adhesion. Biology for AP Courses 2022-06-09T00:00:00Z The combination of transpiration and capillary action lifts water upward through the xylem tissues of a plant. Miller & Levine Biology 2018-01-01T00:00:00Z What is the ratio of heights to which ethyl alcohol and water are raised by capillary action in the same glass tube? College Physics for AP Courses 2015-08-12T00:00:00Z You depend on a constant supply of tears to keep your eyes lubricated and on capillary action to pump tear fluid away. Chemistry 2019-02-14T00:00:00Z The water wicks upward through the pores via capillary action, the way a droplet of blood on your fingertip is drawn into a tiny glass tube for testing. Why does snow glow blue? How could a fly possibly survive high-elevation elements? Join us for an exploration of Washington’s winter wonders. 2022-01-30T05:00:00Z Water moving up from the roots of plants to the leaves as a result of capillary action is because of adhesion. Biology for AP Courses 2022-06-09T00:00:00Z Simultaneously, water in the soil is drawn upward by capillary action, the molecules of water sticking to the sides of very narrow pores in the ground. Thousands of Tiny ‘Ice Needles’ May Explain Mysterious Stone Patterns on Earth ... and Mars 2021-11-03T04:00:00Z Is capillary action due to cohesive or adhesive forces, or both? College Physics for AP Courses 2015-08-12T00:00:00Z But despite the gullibility implied by the sonic harmony of the Times subhead, capillary action is not a widely understood scientific principle. The Miracle of Capillary Action 2020-02-13T05:00:00Z Evaporation cools the snow; capillary action distributes the water. The Wild Carnival at the Heart of Skiing’s Most Dangerous Race 2019-04-22T04:00:00Z Water moving up from the roots of plants to the leaves as a result of capillary action is because of adhesion. Biology for AP Courses 2022-06-09T00:00:00Z The dominant idea about how the birds suck up nectar was that the shape of the beak and the tongue produced capillary action, in which liquid rises against gravity because of mechanical forces. The Hummingbird as Warrior: Evolution of a Fierce and Furious Beak 2019-02-05T05:00:00Z If a capillary tube is placed vertically into a liquid, as shown in Figure 11.37, capillary action will raise or suppress the liquid inside the tube depending on the combination of substances. College Physics for AP Courses 2015-08-12T00:00:00Z The thinner the tube, the more relative surface area inside the tube, enabling capillary action to pull liquid up higher than in larger diameter tubes. The Miracle of Capillary Action 2020-02-13T05:00:00Z More formally known as capillary action, it is also what helps sap rise in trees and keeps ink flowing into the nib of a fountain pen. 4 Everyday Items Einstein Helped Create Water moving up from the roots of plants to the leaves as a result of capillary action is because of cohesion. Biology for AP Courses 2022-06-09T00:00:00Z Another useful property of some fibres is wicking, in which liquids travel along the fibre via a bit of physics called capillary action. All sewn up 2016-07-21T04:00:00Z Could capillary action be used to move fluids in a “weightless” environment, such as in an orbiting space probe? College Physics for AP Courses 2015-08-12T00:00:00Z Although capillary action is ubiquitous in the natural world, it was not formally identified until the late 15th century by Leonardo da Vinci—the first of several renowned scientists who became preoccupied with the phenomenon. The Miracle of Capillary Action 2020-02-13T05:00:00Z Once an ice crystal forms, its growth is fueled by the movement of water through capillary action toward the freezing along the pore surfaces of the wood or soil. A Fungus Is the Founder of the Hair Club for Trees 2015-10-19T04:00:00Z He thinks the space environment may also be messing with capillary action — the intermolecular attraction between the liquid and solid materials. Whiskey aged in space tastes like throat lozenges and rubbery smoke 2015-09-10T04:00:00Z Dr. Weislogel’s research involves moving liquids in low gravity via capillary action without pumps, a principle used to shift fuel from tanks to engines, circulate coolant and process water. A Glass for Enjoying a Sip of Whisky While Floating in Space 2015-09-03T04:00:00Z What effect does capillary action have on the reading of a manometer with uniform diameter? College Physics for AP Courses 2015-08-12T00:00:00Z Besides the history of celebrated researchers who explored capillary action, it is worth noting that the phenomenon occurs all the time, everywhere, and when you stop to think about it, its manifestations are awe-inspiring. The Miracle of Capillary Action 2020-02-13T05:00:00Z As long as there is "liquid water fuel" in the substrate and it can move by capillary action, the ice will continue growing. A Fungus Is the Founder of the Hair Club for Trees 2015-10-19T04:00:00Z They’d flick just one-third as often, they estimate, if they relied on capillary action rather than active pumping. Watch: Hummingbird tongues are tiny pumps 2015-08-18T04:00:00Z On Earth, the downward drag of gravity overwhelms the capillary action. A Glass for Enjoying a Sip of Whisky While Floating in Space 2015-09-03T04:00:00Z As capillary action pulls the liquid up, substances in the paper react, causing the color change. This Isn't Your Grandpa's Litmus Paper 2013-08-05T14:15:02.207Z Of course, the anomalous case of Ganesha’s ostensibly divine act is just one instance of capillary action beyond the confines of a science laboratory. The Miracle of Capillary Action 2020-02-13T05:00:00Z When the tube is placed in a spiked drink, capillary action draws liquid up, and the dye-tagged molecules swap places with those in the drink. Patent Watch: Molecularly Imprinted Polymer Sensor Device 2013-01-05T17:15:00.190Z But a 5-year study of hummingbirds in the wild, including 18 species from seven of the nine major groups, found that the birds almost never relied on capillary action to collect nectar. Watch: Hummingbird tongues are tiny pumps 2015-08-18T04:00:00Z The findings put to rest the capillary action theory, but not for good. Video: Tricks of the Hummingbird's Tongue 2012-10-17T00:10:00Z Did this hue become more pronounced, or darker, after 48 and 72 hours? moves through the plant by means of capillary action. Staining Science: Capillary Action of Dyed Water in Plants 2012-08-16T14:15:00.207Z It is capillary action that allows the tear ducts in our eyes to release tear fluid. The Miracle of Capillary Action 2020-02-13T05:00:00Z The sponge becomes saturated with water because of the capillary action of the carborundum upon the water. Chlorination of Water 2011-09-13T02:00:32.243Z A correction due to capillary action, and depending on the size of the tube, must be applied to the readings. A Treatise on Meteorological Instruments Explanatory of Their Scientific Principles, Method of Construction, and Practical Utility 2011-06-19T02:00:15.717Z 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 Water moves through the plant by means of capillary action. Staining Science: Capillary Action of Dyed Water in Plants 2012-08-16T14:15:00.207Z However, too narrow a tube can exacerbate the situation, causing capillary action to soak up water and clog the tube. Scientist at Work: Sleep Loggers, Take Two 2011-05-18T15:56:04Z At that point, Dr. Rubega said, capillary action probably moves the liquid into the throat. Observatory: Forget Straws: Hummingbirds Sip With Forks 2011-05-02T19:59:49Z After diluting the mixture with solvent, she applied it drop by drop, from a syringe, allowing the liquid to work its way under the top layer of wax through capillary action. The Improvisational Remedies of an Art Healer 2010-10-25T19:50:00Z In this case, capillary action draws liquid up the grooves to save the bird energy—it doesn't have to stick its tongue in and out as many times. Video: Tricks of the Hummingbird's Tongue 2012-10-17T00:10:00Z The fused borax works its way in by capillary action, and the spelter follows. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" He also observed the constancy of the angle of contact of a liquid surface with a solid, and showed how from these two principles to deduce the phenomena of capillary action. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" Of course you have to keep wetting it, for hair will not draw oil fast enough by capillary action. Where the Pavement Ends An early observation of the diffusion of gases was recorded by him in 1823 when he noticed the escape of hydrogen from a cracked jar, attributing it to the capillary action of fissures. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5 "Dinard" to "Dodsworth" If a gas is shaken up in a liquid the process of absorption of the bubbles is also accelerated by capillary action, as occurs in an ordinary sparklet bottle. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" This layer should probably never be less than two feet thick and for soils of a structure favorable to capillary action it should be at least three feet thick. American Rural Highways Having applied the secondary principle of surface-tension to the various particular cases of capillary action, Young proceeded to deduce this surface-tension from ulterior principles. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" These may subsequently be covered with drifting sands and capillary action may cause the borates to work up through the sands, becoming mixed with them and efflorescing at the surface. The Economic Aspect of Geology The terminal tubes must retain a diameter of at least 1 mm., in order to avoid capillary action during the collection of the fluid. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. Evaporation goes on to the greatest extent in soils whose particles are compacted together, capillary action in this case taking place more freely, and effecting evaporation from a greater depth of soil. Manures and the principles of manuring As a physicist he made discoveries that were in themselves sufficient to perpetuate his name, in specific heat, capillary action and sound. A History of the Nineteenth Century, Year by Year Volume Two (of Three) We have now described the principal forms of the theory of capillary action during its earlier development. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" On account of its pliability it is easily adapted to the walls and margins, and a perfect fit is made, thus preventing capillary action and preventing further caries. Tin Foil and Its Combinations for Filling Teeth A deep and absorptive subsoil returns water to the surface, by capillary action, as it is needed. Ontario Teachers' Manuals: Nature Study As soon as the paper is placed upon the melted paraffin the latter begins to soak through, in virtue of capillary action, and drives before it the air and moisture, causing a strongly marked effervescence. On Laboratory Arts By their capillary action they drain the lymph to a healthy region above, and thus enable it to enter the circulation. Manual of Surgery Volume First: General Surgery. Sixth Edition. It is easy to show that a force subject to this law would not account for capillary action. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" Prof. Sanborn concludes from his experiments thus far that the surface gains moisture from soil beneath it by capillary action, but gathers nothing from the air. The Prairie Farmer, Vol. 56, No. 2, January 12, 1884 A Weekly Journal for the Farm, Orchard and Fireside These phenomena would be due rather to capillary action and the resulting cohesion. Pressure, Resistance, and Stability of Earth American Society of Civil Engineers: Transactions, Paper No. 1174, Volume LXX, December 1910 This it does by capillary action, as the mercury spreads over the entire surface of the zinc. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. We easily discover that this phenomenon is due to the intervention of capillary action. The New Physics and Its Evolution The experiments of Quincke and others seem to show that the extreme range of the forces which produce capillary action lies between a thousandth and a twenty-thousandth part of a millimetre. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" Because when hoed, thereby disturbing capillary action, he found less moisture than when unhoed, in surface soil. The Prairie Farmer, Vol. 56, No. 2, January 12, 1884 A Weekly Journal for the Farm, Orchard and Fireside These fibers are so close together as to draw up water by capillary action, and, indeed, a great deal in the value of a sponge depends upon the fineness and tenuity of these fibers. Scientific American Supplement, No. 601, July 9, 1887 The initial amalgamation, while not absolutely essential, helps in a measure this capillary action. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. The religion of science will infiltrate and penetrate and permeate by its capillary action the barbaric superstitions, the ridiculous rites, the unsanitary insanities of our social systems. The Glands Regulating Personality Theories are put forward, most learned theories, introducing capillary action, osmosis and cellular imbibition, to explain why the caulicle ascends and the radical descends. The Life of the fly; with which are interspersed some chapters of autobiography |
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