97-450: An ice cube is a small piece of ice , which is typically rectangular as viewed from above and trapezoidal as viewed from the side. Ice cubes are products of mechanical refrigeration and are usually produced to cool beverages . They may be made at home in a freezer with an ice tray or in an automated ice-making accessory. They may also be produced industrially and sold commercially. American physician and inventor John Gorrie built
194-464: A freezer until the water freezes into ice , producing ice cubes. Ice trays are often flexible, so the frozen cubes can be easily removed by flexing the tray. "Twist ice trays" have a simple spring-loaded mechanism with a lever that is used to turn the tray upside down and flex at the same time, such that the cubes that drop are collected in a removable tray below. The spring returns the ice cube tray to its upright position without having to remove it from
291-480: A mineral . Depending on the presence of impurities such as particles of soil or bubbles of air , it can appear transparent or a more or less opaque bluish-white color. Virtually all of the ice on Earth is of a hexagonal crystalline structure denoted as ice I h (spoken as "ice one h"). Depending on temperature and pressure, at least nineteen phases ( packing geometries ) can exist. The most common phase transition to ice I h occurs when liquid water
388-476: A bartender's guide called How to Mix Drinks; or, The Bon Vivant's Companion which included 10 cocktail recipes using bitters, to differentiate from other drinks such as punches and cobblers. Cocktails continued to evolve and gain popularity throughout the 1900s, with the term eventually expanding to cover all mixed drinks. In 1917, the term cocktail party was coined by Julius S. Walsh Jr. of St. Louis , Missouri . With wine and beer being less available during
485-545: A beverage appeared in The Farmers Cabinet, 1803, . The first definition of a cocktail as an alcoholic beverage appeared three years later in The Balance and Columbian Repository ( Hudson, New York ) May 13, 1806. Traditionally, cocktail ingredients included spirits, sugar, water and bitters; however, this definition evolved throughout the 1800s to include the addition of a liqueur . In 1862, Jerry Thomas published
582-508: A common item in liquor stores. In the modern world and the Information Age , cocktail recipes are widely shared online on websites. Cocktails and restaurants that serve them are frequently covered and reviewed in tourism magazines and guides. Some cocktails, such as the Mojito , Manhattan , and Martini , have become staples in restaurants and pop culture. The term cocktail can refer to
679-619: A density between a quarter and two thirds that of pure ice, due to a high proportion of trapped air, which also makes soft rime appear white. Hard rime is denser, more transparent, and more likely to appear on ships and aircraft. Cold wind specifically causes what is known as advection frost when it collides with objects. When it occurs on plants, it often causes damage to them. Various methods exist to protect agricultural crops from frost - from simply covering them to using wind machines. In recent decades, irrigation sprinklers have been calibrated to spray just enough water to preemptively create
776-410: A few molecules in the droplet need to get together by chance to form an arrangement similar to that in an ice lattice; then the droplet freezes around this "nucleus". Experiments show that this "homogeneous" nucleation of cloud droplets only occurs at temperatures lower than −35 °C (238 K; −31 °F). In warmer clouds an aerosol particle or "ice nucleus" must be present in (or in contact with)
873-689: A form of precipitation consisting of small, translucent balls of ice, which are usually smaller than hailstones. This form of precipitation is also referred to as "sleet" by the United States National Weather Service . (In British English "sleet" refers to a mixture of rain and snow .) Ice pellets typically form alongside freezing rain, when a wet warm front ends up between colder and drier atmospheric layers. There, raindrops would both freeze and shrink in size due to evaporative cooling. So-called snow pellets, or graupel , form when multiple water droplets freeze onto snowflakes until
970-555: A function of temperature and sliding speed. 2014 research suggests that frictional heating is the most important process under most typical conditions. The term that collectively describes all of the parts of the Earth's surface where water is in frozen form is the cryosphere . Ice is an important component of the global climate, particularly in regard to the water cycle. Glaciers and snowpacks are an important storage mechanism for fresh water; over time, they may sublimate or melt. Snowmelt
1067-436: A greater surface area, so heat transfer is faster than solid ice. Ice chips are small pieces of ice , which can be obtained by crushing cubes. They are often recommended before surgery or an invasive medical procedure. They may help to prevent oral mucositis or mouth sores associated with high-dose chemotherapy . Kanazawa Hyogo, a Japanese ice manufacturer, has experienced significant global success, particularly in
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#17328585879401164-432: A hailstone becomes too heavy to be supported by the storm's updraft, it falls from the cloud. Hail forms in strong thunderstorm clouds, particularly those with intense updrafts, high liquid water content, great vertical extent, large water droplets, and where a good portion of the cloud layer is below freezing 0 °C (32 °F). Hail-producing clouds are often identifiable by their green coloration. The growth rate
1261-577: A key role in Earth's water cycle and climate . In the recent decades, ice volume on Earth has been decreasing due to climate change . The largest declines have occurred in the Arctic and in the mountains located outside of the polar regions. The loss of grounded ice (as opposed to floating sea ice ) is the primary contributor to sea level rise . Humans have been using ice for various purposes for thousands of years. Some historic structures designed to hold ice to provide cooling are over 2,000 years old. Before
1358-419: A layer of ice that would form slowly and so avoid a sudden temperature shock to the plant, and not be so thick as to cause damage with its weight. Ablation of ice refers to both its melting and its dissolution . The melting of ice entails the breaking of hydrogen bonds between the water molecules. The ordering of the molecules in the solid breaks down to a less ordered state and the solid melts to become
1455-456: A liquid. This is achieved by increasing the internal energy of the ice beyond the melting point . When ice melts it absorbs as much energy as would be required to heat an equivalent amount of water by 80 °C. While melting, the temperature of the ice surface remains constant at 0 °C. The rate of the melting process depends on the efficiency of the energy exchange process. An ice surface in fresh water melts solely by free convection with
1552-436: A low speed. Ice forms on calm water from the shores, a thin layer spreading across the surface, and then downward. Ice on lakes is generally four types: primary, secondary, superimposed and agglomerate. Primary ice forms first. Secondary ice forms below the primary ice in a direction parallel to the direction of the heat flow. Superimposed ice forms on top of the ice surface from rain or water which seeps up through cracks in
1649-473: A metal tray with individual rubber cups which was invented in 1933, and a tray made completely of rubber. Guy L. Tinkham, a household product executive, invented the first flexible, stainless steel, all-metal ice cube tray in 1933. The tray bent sideways to remove the ice cubes. Commercial pre-filled disposable ice trays for home freezing are designed to provide better taste and reduce the risk of contamination . Danish inventor Erling Vangedal-Nielsen patented
1746-425: A mix of cognac with a dash of his bitters. Several authors have theorized that "cocktail" may be a corruption of " cock ale ". There is a lack of clarity on the origins of cocktails. Traditionally cocktails were a mixture of spirits, sugar, water, and bitters . By the 1860s, however, a cocktail frequently included a liqueur . The first publication of a bartenders ' guide which included cocktail recipes
1843-503: A person, having swallowed a glass of it, is ready to swallow any thing else. Other origins have been suggested, as corruptions of other words or phrases. These can be dismissed as folk etymologies , given the well-attested term "cock-tail" for a horse. Dale DeGroff hypothesizes that the word evolved from the French coquetier , for an eggcup in which Antoine A. Peychaud, creator of Peychaud's Bitters , allegedly used to serve his guests
1940-505: A rate that depends linearly on the water temperature, T ∞ , when T ∞ is less than 3.98 °C, and superlinearly when T ∞ is equal to or greater than 3.98 °C, with the rate being proportional to (T ∞ − 3.98 °C) , with α = 5 / 3 for T ∞ much greater than 8 °C, and α = 4 / 3 for in between temperatures T ∞ . In salty ambient conditions, dissolution rather than melting often causes
2037-420: A refrigerator in 1844 to produce ice to cool air. His refrigerator produced ice which hung from the ceiling in a basin to lower the ambient room temperature. During his time, bad air quality was thought to cause disease . Therefore, in order to help prevent and treat sickness, he pushed for the draining of swamps and the cooling of sickrooms. Ice cube trays are designed to be filled with water , then placed in
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#17328585879402134-407: A rubber ice tray after noticing that slush and ice flaked off his rubber boots rather than adhering to them while walking through some woods collecting sap for maple syrup. Recalling this 1928 incident over lunch with his patent attorney, he conducted experiments using rubber cups, which led to practical designs and patents for different types of tray; these included a metal tray with rubber separators,
2231-487: A single oxygen atom covalently bonded to two hydrogen atoms , or H–O–H. However, many of the physical properties of water and ice are controlled by the formation of hydrogen bonds between adjacent oxygen and hydrogen atoms; while it is a weak bond, it is nonetheless critical in controlling the structure of both water and ice. An unusual property of water is that its solid form—ice frozen at atmospheric pressure —is approximately 8.3% less dense than its liquid form; this
2328-746: A soft ball-like shape is formed. So-called " diamond dust ", (METAR code IC ) also known as ice needles or ice crystals, forms at temperatures approaching −40 °C (−40 °F) due to air with slightly higher moisture from aloft mixing with colder, surface-based air. As water drips and re-freezes, it can form hanging icicles , or stalagmite -like structures on the ground. On sloped roofs, buildup of ice can produce an ice dam , which stops melt water from draining properly and potentially leads to damaging leaks. More generally, water vapor depositing onto surfaces due to high relative humidity and then freezing results in various forms of atmospheric icing , or frost . Inside buildings, this can be seen as ice on
2425-457: A stimulating drink, like pick-me-up . This agrees with usage in early citations (1798: "'cock-tail' (vulgarly called ginger)", 1803: drink at 11 a.m. to clear the head, 1806: "stimulating liquor"), and suggests that a cocktail was initially considered a medicinal drink, which accords with the use of bitters. Etymologist Anatoly Liberman endorses as "highly probable" the theory advanced by Låftman (1946), which Liberman summarizes as follows: It
2522-471: A temperature of −78.5 °C (−109.3 °F), the vaporization point of solid carbon dioxide (dry ice). Most liquids under increased pressure freeze at higher temperatures because the pressure helps to hold the molecules together. However, the strong hydrogen bonds in water make it different: for some pressures higher than 1 atm (0.10 MPa), water freezes at a temperature below 0 °C (32 °F). Ice, water, and water vapour can coexist at
2619-574: A thin surface layer, which makes it particularly hazardous to walk across it. Another dangerous form of rotten ice to traverse on foot is candle ice, which develops in columns perpendicular to the surface of a lake. Because it lacks a firm horizontal structure, a person who has fallen through has nothing to hold onto to pull themselves out. Snow crystals form when tiny supercooled cloud droplets (about 10 μm in diameter) freeze . These droplets are able to remain liquid at temperatures lower than −18 °C (255 K; 0 °F), because to freeze,
2716-522: A wide variety of drinks; it is typically a mixed drink containing alcohol. When a combined drink contains only a distilled spirit and a mixer , such as soda or fruit juice , it is a highball . Many of the International Bartenders Association Official Cocktails are highballs. When a mixed drink contains only a distilled spirit and a liqueur , it is a duo, and when it adds cream or a cream-based liqueur, it
2813-426: Is a mixed drink , usually alcoholic . Most commonly, a cocktail is a combination of one or more spirits mixed with other ingredients, such as juices, flavored syrups , tonic water , shrubs , and bitters . Cocktails vary widely across regions of the world, and many websites publish both original recipes and their own interpretations of older and more famous cocktails. A well-known 'cocktail' in ancient Greece
2910-442: Is a basic cause of freeze-thaw weathering of rock in nature and damage to building foundations and roadways from frost heaving . It is also a common cause of the flooding of houses when water pipes burst due to the pressure of expanding water when it freezes. Because ice is less dense than liquid water, it floats, and this prevents bottom-up freezing of the bodies of water. Instead, a sheltered environment for animal and plant life
3007-431: Is a trio. Additional ingredients may be sugar, honey , milk, cream , and various herbs. Mixed drinks without alcohol that resemble cocktails can be known as "zero-proof" or "virgin" cocktails or "mocktails". The origin of the word "cocktail" is disputed. It is presumably from "cock-tail", meaning "with tail standing up, like a cock's", in particular of a horse, but how this came to be applied to alcoholic mixed drinks
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3104-427: Is abundant on the Earth's surface, particularly in the polar regions and above the snow line , where it can aggregate from snow to form glaciers and ice sheets . As snowflakes and hail , ice is a common form of precipitation , and it may also be deposited directly by water vapor as frost . The transition from ice to water is melting and from ice directly to water vapor is sublimation . These processes plays
3201-424: Is an important source of seasonal fresh water. The World Meteorological Organization defines several kinds of ice depending on origin, size, shape, influence and so on. Clathrate hydrates are forms of ice that contain gas molecules trapped within its crystal lattice. Ice that is found at sea may be in the form of drift ice floating in the water, fast ice fixed to a shoreline or anchor ice if attached to
3298-498: Is cooled below 0 °C ( 273.15 K , 32 °F ) at standard atmospheric pressure . When water is cooled rapidly ( quenching ), up to three types of amorphous ice can form. Interstellar ice is overwhelmingly low-density amorphous ice (LDA), which likely makes LDA ice the most abundant type in the universe. When cooled slowly, correlated proton tunneling occurs below −253.15 °C ( 20 K , −423.67 °F ) giving rise to macroscopic quantum phenomena . Ice
3395-490: Is divided into four categories: pore ice, vein ice (also known as ice wedges), buried surface ice and intrasedimental ice (from the freezing of underground waters). One example of ice formation in permafrost areas is aufeis - layered ice that forms in Arctic and subarctic stream valleys. Ice, frozen in the stream bed, blocks normal groundwater discharge, and causes the local water table to rise, resulting in water discharge on top of
3492-435: Is equivalent to a volumetric expansion of 9%. The density of ice is 0.9167 –0.9168 g/cm at 0 °C and standard atmospheric pressure (101,325 Pa), whereas water has a density of 0.9998 –0.999863 g/cm at the same temperature and pressure. Liquid water is densest, essentially 1.00 g/cm , at 4 °C and begins to lose its density as the water molecules begin to form the hexagonal crystals of ice as
3589-484: Is extremely rare otherwise. Even icy moons like Ganymede are expected to mainly consist of other crystalline forms of ice. Water in the interstellar medium is dominated by amorphous ice, making it likely the most common form of water in the universe. Low-density ASW (LDA), also known as hyperquenched glassy water, may be responsible for noctilucent clouds on Earth and is usually formed by deposition of water vapor in cold or vacuum conditions. High-density ASW (HDA)
3686-484: Is formed beneath the floating ice, which protects the underside from short-term weather extremes such as wind chill . Sufficiently thin floating ice allows light to pass through, supporting the photosynthesis of bacterial and algal colonies. When sea water freezes, the ice is riddled with brine-filled channels which sustain sympagic organisms such as bacteria, algae, copepods and annelids . In turn, they provide food for animals such as krill and specialized fish like
3783-452: Is formed by compression of ordinary ice I h or LDA at GPa pressures. Very-high-density ASW (VHDA) is HDA slightly warmed to 160 K under 1–2 GPa pressures. Ice from a theorized superionic water may possess two crystalline structures. At pressures in excess of 500,000 bars (7,300,000 psi) such superionic ice would take on a body-centered cubic structure. However, at pressures in excess of 1,000,000 bars (15,000,000 psi)
3880-448: Is maximized at about −13 °C (9 °F), and becomes vanishingly small much below −30 °C (−22 °F) as supercooled water droplets become rare. For this reason, hail is most common within continental interiors of the mid-latitudes, as hail formation is considerably more likely when the freezing level is below the altitude of 11,000 feet (3,400 m). Entrainment of dry air into strong thunderstorms over continents can increase
3977-464: Is over 70% ice on its surface is said to be covered by pack ice. Fully formed sea ice can be forced together by currents and winds to form pressure ridges up to 12 metres (39 ft) tall. On the other hand, active wave activity can reduce sea ice to small, regularly shaped pieces, known as pancake ice . Sometimes, wind and wave activity "polishes" sea ice to perfectly spherical pieces known as ice eggs . The largest ice formations on Earth are
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4074-409: Is shifted toward slightly lower energies. Thus, ice appears blue, with a slightly greener tint than liquid water. Since absorption is cumulative, the color effect intensifies with increasing thickness or if internal reflections cause the light to take a longer path through the ice. Other colors can appear in the presence of light absorbing impurities, where the impurity is dictating the color rather than
4171-531: Is therefore slower than melting. Ice has long been valued as a means of cooling. In 400 BC Iran, Persian engineers had already developed techniques for ice storage in the desert through the summer months. During the winter, ice was transported from harvesting pools and nearby mountains in large quantities to be stored in specially designed, naturally cooled refrigerators , called yakhchal (meaning ice storage ). Yakhchals were large underground spaces (up to 5000 m ) that had thick walls (at least two meters at
4268-399: Is unclear. The most prominent theories are that it refers to a stimulant, hence a stimulating drink, or to a non-purebred horse, hence a mixed drink. Cocktail historian David Wondrich speculates that "cocktail" is a reference to gingering , a practice for perking up an old horse by means of a ginger suppository so that the animal would "cock its tail up and be frisky", hence by extension
4365-692: The Old Fashioned whiskey cocktail, the Sazerac cocktail, and the Manhattan cocktail. The ingredients listed (spirits, sugar, water, and bitters) match the ingredients of an Old Fashioned , which originated as a term used by late 19th-century bar patrons to distinguish cocktails made the "old-fashioned" way from newer, more complex cocktails. In the 1869 recipe book Cooling Cups and Dainty Drinks , by William Terrington, cocktails are described as: Cocktails are compounds very much used by "early birds" to fortify
4462-592: The Prohibition in the United States (1920–1933), liquor-based cocktails became more popular due to accessibility, followed by a decline in popularity during the late 1960s. The early to mid-2000s saw the rise of cocktail culture through the style of mixology which mixes traditional cocktails and other novel ingredients. By 2023, the so-called "cocktail in a can" had proliferated (at least in the United States) to become
4559-446: The bald notothen , fed upon in turn by larger animals such as emperor penguins and minke whales . When ice melts, it absorbs as much energy as it would take to heat an equivalent mass of water by 80 °C (176 °F). During the melting process, the temperature remains constant at 0 °C (32 °F). While melting, any energy added breaks the hydrogen bonds between ice (water) molecules. Energy becomes available to increase
4656-752: The triple point , which is exactly 273.16 K (0.01 °C) at a pressure of 611.657 Pa . The kelvin was defined as 1 / 273.16 of the difference between this triple point and absolute zero , though this definition changed in May 2019. Unlike most other solids, ice is difficult to superheat . In an experiment, ice at −3 °C was superheated to about 17 °C for about 250 picoseconds . Subjected to higher pressures and varying temperatures, ice can form in nineteen separate known crystalline phases at various densities, along with hypothetical proposed phases of ice that have not been observed. With care, at least fifteen of these phases (one of
4753-473: The "Ice King", worked on developing better insulation products for long distance shipments of ice, especially to the tropics; this became known as the ice trade. Between 1812 and 1822, under Lloyd Hesketh Bamford Hesketh 's instruction, Gwrych Castle was built with 18 large towers, one of those towers is called the 'Ice Tower'. Its sole purpose was to store Ice. Trieste sent ice to Egypt , Corfu , and Zante ; Switzerland, to France; and Germany sometimes
4850-418: The United States (1920–1933), when alcoholic beverages were illegal, cocktails were still consumed illegally in establishments known as speakeasies . The quality of the liquor available during Prohibition was much worse than previously. There was a shift from whiskey to gin , which does not require aging and is, therefore, easier to produce illicitly. Honey, fruit juices, and other flavorings served to mask
4947-549: The United States, with a combined value of shipments of $ 595,487,000. Home refrigerators can also make ice with a built in icemaker , which will typically make ice cubes or crushed ice. The first such device was presented in 1965 by Frigidaire . Ice forming on roads is a common winter hazard, and black ice particularly dangerous because it is very difficult to see. It is both very transparent, and often forms specifically in shaded (and therefore cooler and darker) areas, i.e. beneath overpasses . Cocktail A cocktail
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#17328585879405044-506: The United States. Approximately 300 American bars and restaurants import high-quality ice directly from the company. This international demand has contributed to the company's growth, with sales to the U.S. increasing from 10 million yen in 2020 to 70 million yen in 2023, boosting overall revenue to 242 million yen (approximately $ 1.6 million). The company has carved out a niche in the global market by offering high-quality ice to discerning customers. An alternative to ice cubes for whiskey on
5141-469: The ablation of ice. For example, the temperature of the Arctic Ocean is generally below the melting point of ablating sea ice. The phase transition from solid to liquid is achieved by mixing salt and water molecules, similar to the dissolution of sugar in water, even though the water temperature is far below the melting point of the sugar. However, the dissolution rate is limited by salt concentration and
5238-404: The bag's entry point. The ice cube bag has subsequently been marketed and adopted worldwide. Dedicated ice-maker machines can be used to produce ice cubes for laboratories, home, and academic use. Ice cubes are also produced commercially and sold in bulk. Commercially made ice cubes may be clear, compared to domestically made ice cubes. Cloudy ice cubes occur when water is frozen quickly, or when
5335-419: The base) made of a specific type of mortar called sarooj made from sand, clay, egg whites, lime, goat hair, and ash. The mortar was resistant to heat transfer, helping to keep the ice cool enough not to melt; it was also impenetrable by water. Yakhchals often included a qanat and a system of windcatchers that could lower internal temperatures to frigid levels, even during the heat of the summer. One use for
5432-512: The bottom, allowing the bubbles to be washed away from the top as the cube grows. Crushed ice is the term for ice cubes that are crushed or sheared into irregularly shaped flakes to provide an aesthetic effect to some cocktails . Crushed ice is also used when faster cooling is desired since the number and average radius of the ice particles govern the cooling rate. Ice is often also crushed to form slushies , which can be both alcoholic and non-alcoholic. Crushed ice melts faster than solid ice: it has
5529-427: The droplet to act as a nucleus. Our understanding of what particles make efficient ice nuclei is poor – what we do know is they are very rare compared to that cloud condensation nuclei on which liquid droplets form. Clays, desert dust and biological particles may be effective, although to what extent is unclear. Artificial nuclei are used in cloud seeding . The droplet then grows by condensation of water vapor onto
5626-402: The foul taste of the inferior liquors. Sweet cocktails were easier to drink quickly, an important consideration when the establishment might be raided at any moment. With wine and beer less readily available, liquor-based cocktails took their place, even becoming the centerpiece of the new cocktail party . Cocktails became less popular in the late 1960s and through the 1970s, until resurging in
5723-673: The freezer, which can save time and reduce accidental mess—though the tray has to be removed to be collected, the ice cube tray still has to be removed to be refilled. An alternative system is an aluminium tray with a lever that raises the ice cubes, freeing them from the tray. A motorized version of this is found in most automatic ice-making freezers. While the usual shape of the ice cube is roughly cubical , some ice trays form hemispherical or cylindrical shapes; others produce blocks of ice in seasonal, festive, or other shapes. Occasionally, edible items are frozen inside ice cubes at home and in commercial production. Lloyd Groff Copeman invented
5820-449: The freezing point is reached. This is due to hydrogen bonding dominating the intermolecular forces, which results in a packing of molecules less compact in the solid. The density of ice increases slightly with decreasing temperature and has a value of 0.9340 g/cm at −180 °C (93 K). When water freezes, it increases in volume (about 9% for fresh water). The effect of expansion during freezing can be dramatic, and ice expansion
5917-465: The frequency of hail by promoting evaporative cooling which lowers the freezing level of thunderstorm clouds giving hail a larger volume to grow in. Accordingly, hail is actually less common in the tropics despite a much higher frequency of thunderstorms than in the mid-latitudes because the atmosphere over the tropics tends to be warmer over a much greater depth. Hail in the tropics occurs mainly at higher elevations. Ice pellets ( METAR code PL ) are
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#17328585879406014-534: The frozen layer. This water then freezes, causing the water table to rise further and repeat the cycle. The result is a stratified ice deposit, often several meters thick. Snow line and snow fields are two related concepts, in that snow fields accumulate on top of and ablate away to the equilibrium point (the snow line) in an ice deposit. Ice which forms on moving water tends to be less uniform and stable than ice which forms on calm water. Ice jams (sometimes called "ice dams"), when broken chunks of ice pile up, are
6111-636: The greatest ice hazard on rivers. Ice jams can cause flooding, damage structures in or near the river, and damage vessels on the river. Ice jams can cause some hydropower industrial facilities to completely shut down. An ice dam is a blockage from the movement of a glacier which may produce a proglacial lake . Heavy ice flows in rivers can also damage vessels and require the use of an icebreaker vessel to keep navigation possible. Ice discs are circular formations of ice floating on river water. They form within eddy currents , and their position results in asymmetric melting, which makes them continuously rotate at
6208-499: The hailstones to the upper part of the cloud. The updraft dissipates and the hailstones fall down, back into the updraft, and are lifted up again. Hail has a diameter of 5 millimetres (0.20 in) or more. Within METAR code, GR is used to indicate larger hail, of a diameter of at least 6.4 millimetres (0.25 in) and GS for smaller. Stones of 19 millimetres (0.75 in), 25 millimetres (1.0 in) and 44 millimetres (1.75 in) are
6305-464: The ice exerted by any object. However, the significance of this hypothesis is disputed by experiments showing a high coefficient of friction for ice using atomic force microscopy . Thus, the mechanism controlling the frictional properties of ice is still an active area of scientific study. A comprehensive theory of ice friction must take into account all of the aforementioned mechanisms to estimate friction coefficient of ice against various materials as
6402-429: The ice itself. For instance, icebergs containing impurities (e.g., sediments, algae, air bubbles) can appear brown, grey or green. Because ice in natural environments is usually close to its melting temperature, its hardness shows pronounced temperature variations. At its melting point, ice has a Mohs hardness of 2 or less, but the hardness increases to about 4 at a temperature of −44 °C (−47 °F) and to 6 at
6499-456: The ice layer is caused by friction. However, this theory does not sufficiently explain why ice is slippery when standing still even at below-zero temperatures. Subsequent research suggested that ice molecules at the interface cannot properly bond with the molecules of the mass of ice beneath (and thus are free to move like molecules of liquid water). These molecules remain in a semi-liquid state, providing lubrication regardless of pressure against
6596-471: The ice surfaces. Ice storm is a type of winter storm characterized by freezing rain , which produces a glaze of ice on surfaces, including roads and power lines . In the United States, a quarter of winter weather events produce glaze ice, and utilities need to be prepared to minimize damages. Hail forms in storm clouds when supercooled water droplets freeze on contact with condensation nuclei , such as dust or dirt . The storm's updraft blows
6693-474: The ice was to create chilled treats for royalty. There were thriving industries in 16th–17th century England whereby low-lying areas along the Thames Estuary were flooded during the winter, and ice harvested in carts and stored inter-seasonally in insulated wooden houses as a provision to an icehouse often located in large country houses, and widely used to keep fish fresh when caught in distant waters. This
6790-416: The ice which often settles when loaded with snow. An ice shove occurs when ice movement, caused by ice expansion and/or wind action, occurs to the extent that ice pushes onto the shores of lakes, often displacing sediment that makes up the shoreline. Shelf ice is formed when floating pieces of ice are driven by the wind piling up on the windward shore. This kind of ice may contain large air pockets under
6887-603: The ice, would melt a thin layer, providing sufficient lubrication for the blade to glide across the ice. Yet, 1939 research by Frank P. Bowden and T. P. Hughes found that skaters would experience a lot more friction than they actually do if it were the only explanation. Further, the optimum temperature for figure skating is −5.5 °C (22 °F; 268 K) and −9 °C (16 °F; 264 K) for hockey; yet, according to pressure melting theory, skating below −4 °C (25 °F; 269 K) would be outright impossible. Instead, Bowden and Hughes argued that heating and melting of
6984-405: The inner man, and by those who like their consolations hot and strong. The term highball appears during the 1890s to distinguish a drink composed only of a distilled spirit and a mixer . Published in 1902 by Farrow and Jackson , "Recipes of American and Other Iced Drinks" contains recipes for nearly two dozen cocktails, some still recognizable today. The first "cocktail party" ever thrown
7081-427: The invention of refrigeration technology, the only way to safely store food without modifying it through preservatives was to use ice. Sufficiently solid surface ice makes waterways accessible to land transport during winter, and dedicated ice roads may be maintained. Ice also plays a major role in winter sports . Ice possesses a regular crystalline structure based on the molecule of water, which consists of
7178-515: The known exceptions being ice X) can be recovered at ambient pressure and low temperature in metastable form. The types are differentiated by their crystalline structure, proton ordering, and density. There are also two metastable phases of ice under pressure, both fully hydrogen-disordered; these are Ice IV and Ice XII. Ice XII was discovered in 1996. In 2006, Ice XIII and Ice XIV were discovered. Ices XI, XIII, and XIV are hydrogen-ordered forms of ices I h , V, and XII respectively. In 2009, ice XV
7275-495: The large number of glaciers it contains. They cover an area of around 80,000 km (31,000 sq mi), and have a combined volume of between 3,000-4,700 km . These glaciers are nicknamed "Asian water towers", because their meltwater run-off feeds into rivers which provide water for an estimated two billion people. Permafrost refers to soil or underwater sediment which continuously remains below 0 °C (32 °F) for two years or more. The ice within permafrost
7372-517: The most frequently reported hail sizes in North America. Hailstones can grow to 15 centimetres (6 in) and weigh more than 0.5 kilograms (1.1 lb). In large hailstones, latent heat released by further freezing may melt the outer shell of the hailstone. The hailstone then may undergo 'wet growth', where the liquid outer shell collects other smaller hailstones. The hailstone gains an ice layer and grows increasingly larger with each ascent. Once
7469-514: The process to an even older author, Ibn Bakhtawayhi, of whom nothing is known. Ice is now produced on an industrial scale, for uses including food storage and processing, chemical manufacturing, concrete mixing and curing, and consumer or packaged ice. Most commercial icemakers produce three basic types of fragmentary ice: flake, tubular and plate, using a variety of techniques. Large batch ice makers can produce up to 75 tons of ice per day. In 2002, there were 426 commercial ice-making companies in
7566-401: The question, "What is a cocktail?": Cock-tail is a stimulating liquor, composed of spirits of any kind, sugar, water, and bitters —it is vulgarly called bittered sling , and is supposed to be an excellent electioneering potion, in as much as it renders the heart stout and bold, at the same time that it fuddles the head. It is said, also to be of great use to a democratic candidate: because
7663-455: The rocks are so-called whiskey rocks or stones. Ice Ice is water that is frozen into a solid state, typically forming at or below temperatures of 0 ° C , 32 ° F , or 273.15 K . It occurs naturally on Earth , on other planets, in Oort cloud objects, and as interstellar ice . As a naturally occurring crystalline inorganic solid with an ordered structure, ice is considered to be
7760-425: The seafloor. Ice which calves (breaks off) from an ice shelf or a coastal glacier may become an iceberg. The aftermath of calving events produces a loose mixture of snow and ice known as Ice mélange . Sea ice forms in several stages. At first, small, millimeter-scale crystals accumulate on the water surface in what is known as frazil ice . As they become somewhat larger and more consistent in shape and cover,
7857-408: The single-use ice cube bag in 1978. He was inspired to do so after spending a night with friends where their need for ice was in excess of that which ice cube trays could provide; he, therefore, filled standard plastic bags with water and froze them, the ice to subsequently be retrieved with a hammer. The design was subsequently revised to feature individual compartments for each ice cube, with a seal at
7954-440: The structure may shift to a more stable face-centered cubic lattice. It is speculated that superionic ice could compose the interior of ice giants such as Uranus and Neptune. Ice is " slippery " because it has a low coefficient of friction. This subject was first scientifically investigated in the 19th century. The preferred explanation at the time was " pressure melting " -i.e. the blade of an ice skate, upon exerting pressure on
8051-688: The summer. The advent of artificial refrigeration technology made the delivery of ice obsolete. Ice is still harvested for ice and snow sculpture events . For example, a swing saw is used to get ice for the Harbin International Ice and Snow Sculpture Festival each year from the frozen surface of the Songhua River . The earliest known written process to artificially make ice is by the 13th-century writings of Arab historian Ibn Abu Usaybia in his book Kitab Uyun al-anba fi tabaqat-al-atibba concerning medicine in which Ibn Abu Usaybia attributes
8148-443: The surface of un-insulated windows. Hoar frost is common in the environment, particularly in the low-lying areas such as valleys . In Antarctica, the temperatures can be so low that electrostatic attraction is increased to the point hoarfrost on snow sticks together when blown by wind into tumbleweed -like balls known as yukimarimo . Sometimes, drops of water crystallize on cold objects as rime instead of glaze. Soft rime has
8245-441: The thermal energy (temperature) only after enough hydrogen bonds are broken that the ice can be considered liquid water. The amount of energy consumed in breaking hydrogen bonds in the transition from ice to water is known as the heat of fusion . As with water, ice absorbs light at the red end of the spectrum preferentially as the result of an overtone of an oxygen–hydrogen (O–H) bond stretch. Compared with water, this absorption
8342-480: The two ice sheets which almost completely cover the world's largest island, Greenland , and the continent of Antarctica . These ice sheets have an average thickness of over 1 km (0.6 mi) and have existed for millions of years. Other major ice formations on land include ice caps , ice fields , ice streams and glaciers . In particular, the Hindu Kush region is known as the Earth's "Third Pole" due to
8439-433: The water is high in dissolved solids. When water is cooled to its freezing point , and ice starts to form, dissolved gases can no longer stay in solution and come out as microscopic bubbles. However, as ice floats in water, once there is enough ice to form a layer on the surface, the ice layer traps all bubbles within the ice cube. Commercial ice-makers use a flowing source of purified water to make ice with cooling elements at
8536-433: The water surface begins to look "oily" from above, so this stage is called grease ice . Then, ice continues to clump together, and solidify into flat cohesive pieces known as ice floes . Ice floes are the basic building blocks of sea ice cover, and their horizontal size (defined as half of their diameter ) varies dramatically, with the smallest measured in centimeters and the largest in hundreds of kilometers. An area which
8633-623: The word as originating in the U.S. The first recorded use of cocktail as a beverage (possibly non-alcoholic) in the United States appears in The Farmer's Cabinet , April 28, 1803: 11. [a.m.] Drank a glass of cocktail—excellent for the head...Call'd at the Doct's. found Burnham—he looked very wise—drank another glass of cocktail. The first definition of cocktail known to be an alcoholic beverage appeared in The Balance and Columbian Repository ( Hudson, New York ) May 13, 1806; editor Harry Croswell answered
8730-566: Was allegedly by Julius S. Walsh Jr. of St. Louis , Missouri , in May 1917. Walsh invited 50 guests to her home at noon on a Sunday. The party lasted an hour until lunch was served at 1 p.m. The site of this first cocktail party still stands. In 1924, the Roman Catholic Archdiocese of St. Louis bought the Walsh mansion at 4510 Lindell Boulevard, and it has served as the local archbishop's residence ever since. During Prohibition in
8827-452: Was allegedly copied by an Englishman who had seen the same activity in China. Ice was imported into England from Norway on a considerable scale as early as 1823. In the United States, the first cargo of ice was sent from New York City to Charleston, South Carolina , in 1799, and by the first half of the 19th century, ice harvesting had become a big business. Frederic Tudor , who became known as
8924-617: Was an acceptable alcoholic drink, but diluted, not a "purebred", a thing "raised above its station". Hence the highly appropriate slang word used earlier about inferior horses and sham gentlemen. The first recorded use of cocktail not referring to a horse is found in The Morning Post and Gazetteer in London, England, March 20, 1798: Mr. Pitt, two petit vers of "L'huile de Venus" Ditto, one of "perfeit amour" Ditto, "cock-tail" (vulgarly called ginger) The Oxford English Dictionary cites
9021-472: Was customary to dock the tails of horses that were not thoroughbred [...] They were called cocktailed horses, later simply cocktails. By extension, the word cocktail was applied to a vulgar, ill-bred person raised above his station, assuming the position of a gentleman but deficient in gentlemanly breeding. [...] Of importance [in the 1806 citation above] is [...] the mention of water as an ingredient. [...] Låftman concluded that cocktail
9118-411: Was found at extremely high pressures and −143 °C. At even higher pressures, ice is predicted to become a metal ; this has been variously estimated to occur at 1.55 TPa or 5.62 TPa. As well as crystalline forms, solid water can exist in amorphous states as amorphous solid water (ASW) of varying densities. In outer space, hexagonal crystalline ice is present in the ice volcanoes , but
9215-444: Was in 1862 – How to Mix Drinks; or, The Bon Vivant's Companion , by "Professor" Jerry Thomas . In addition to recipes for punches, sours, slings, cobblers, shrubs, toddies, flips, and a variety of other mixed drinks were 10 recipes for "cocktails". A key ingredient distinguishing cocktails from other drinks in this compendium was the use of bitters . Mixed drinks popular today that conform to this original meaning of "cocktail" include
9312-641: Was named kykeon . It is mentioned in the Homeric texts and was used in the Eleusinian Mysteries . 'Cocktail' accessories are exposed in the Museum of the Royal Tombs of Aigai (Greece). They were used in the court of Philip II of Macedon to prepare and serve mixtures of wine, water, honey as well as extracts of aromatic herbs and flowers, during the banquets. In the United States, a written mention of 'cocktail' as
9409-500: Was supplied from Bavarian lakes. From 1930s and up until 1994, the Hungarian Parliament building used ice harvested in the winter from Lake Balaton for air conditioning. Ice houses were used to store ice formed in the winter, to make ice available all year long, and an early type of refrigerator known as an icebox was cooled using a block of ice placed inside it. Many cities had a regular ice delivery service during
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