Ice

Ice is water frozen into a solid state. 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.

In the Solar System, ice is abundant and occurs naturally from as close to the Sun as Mercury to as far as the Oort cloud. Beyond the Solar System, it occurs as interstellar ice. It is abundant on Earth's surface  particularly in the polar regions and above the snow line  and, as a common form of precipitation and deposition, plays a key role in Earth's water cycle and climate. It falls as snowflakes and hail or occurs as frost, icicles or ice spikes.

Ice molecules can exhibit up to sixteen different phases (packing geometries) that depend on temperature and pressure. When water is cooled rapidly (quenching), up to three different types of amorphous ice can form depending on the history of its pressure and temperature. When cooled slowly correlated proton tunneling occurs below 20 K giving rise to macroscopic quantum phenomena. Virtually all the ice on Earth's surface and in its atmosphere is of a hexagonal crystalline structure denoted as ice Ih (spoken as "ice one h") with minute traces of cubic ice denoted as ice Ic. The most common phase transition to ice Ih occurs when liquid water is cooled below 0°C (273.15K, 32°F) at standard atmospheric pressure. It may also be deposited directly by water vapor, as happens in the formation of frost. The transition from ice to water is melting and from ice directly to water vapor is sublimation.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Ice

Latest News for: Discovery water

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Last week in The Sentinel

The Keene Sentinel 19 Sep 2020
Department of Environmental Services will collect water samples from Spofford Lake today after the discovery of what may be a type of bacteria never before seen in New England, according to an official with the state agency ... officials of a black smudge-like substance in the water....
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Stellar deals at Caribbean and Mexican hotels and resorts

The Philadelphia Tribune 19 Sep 2020
No fewer than six swimming pools, a 1,500 foot crescent of beach, water sports and signature bars and restaurants are just some of the ways you can kick back ... Naturally, water sports and aquatic discovery are front and center, with everything from scuba diving to water aerobics on offer....
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US Commodities Market To Start Trading In Water Futures Amid Climate Change

Yahoo Daily News 18 Sep 2020
The product is expected to provide agricultural, commercial, and municipal water users with greater transparency, price discovery, and risk transfer by aligning supply and demand ... "The Nasdaq Veles California Water Index helps drive better outcomes for water market participants ......
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Mars, Titan, Europe and Enceladus potentially habitable worlds

Beijing News 18 Sep 2020
liquid water, at least one source of energy, and an inventory of biologically useful elements and molecules. But the recent discovery of possibly biogenic phosphine in the clouds of Venus reminds us that at least some of these ingredients exist elsewhere in the solar system too ... The surface of Europa is a vast expanse of water ice....
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The four most promising worlds for alien life in the solar system

Beijing News 18 Sep 2020
liquid water, at least one source of energy, and an inventory of biologically useful elements and molecules. But the recent discovery of possibly biogenic phosphine in the clouds of Venus reminds us that at least some of these ingredients exist elsewhere in the solar system too ... The surface of Europa is a vast expanse of water ice....
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Bilateral collaboration locates oldest sperm sample

China Daily 18 Sep 2020
A partnership between researchers at Queen Mary University of London and the Nanjing Branch of the Chinese Academy of Sciences has led to the discovery of the world's oldest animal sperm. The fossilized sperm was found inside tiny water creatures trapped in amber around 100 million years ago, in what is now Myanmar....
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Rosh Hashana begins Friday, marking 10-days of self-reflection amid the pandemic

The Scranton Times-Tribune 18 Sep 2020
Saturday at Lake Scranton for Tashlich, a custom where Jews cast bread into water as a metaphor for casting out sin, Swartz said ... The Jewish Discovery Center, 216 Miller Road, Waverly Twp., will hold outdoor services under a 4,800-square-foot tent, Rabbi Benny Rapoport said....
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Discovery of microbes with mixed membranes sheds new light on early evolution of life

Phys Dot Org 17 Sep 2020
In the deep waters of the Black Sea, scientists found microbes that can make membrane lipids, a layer that surrounds a cell like a skin, of unexpected origin ... However, mixed lipid membranes had never been found in microbes until the team of Villanueva made an unexpected discovery in de deep waters of the Black Sea....
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CME Group to Launch First-Ever Water Futures Based on Nasdaq Veles California Water Index

Daily Freeman 17 Sep 2020
Nasdaq Veles California Water Index futures will be an innovative, first-of-its-kind tool to provide agricultural, commercial, and municipal water users with greater transparency, price discovery, and risk transfer – all of which can help to more efficiently align supply and demand of this vital resource....
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Invasive shrimp-sucking parasite continues northward Pacific expansion

Phys Dot Org 17 Sep 2020
Researchers have identified an invasive blood-sucking parasite on mud shrimp in the waters of British Columbia's Calvert Island. The discovery represents the northern-most record of the parasite on the West Coast and is likely an indication of its ability to spread without human transport ... The discovery of O ... For Paulay, the discovery of O....
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Low oxygen levels caused fish death in Manila Bay – BFAR

Manila Bulletin 17 Sep 2020
... level for marine waters is 5 mg/L, he added. The discovery came after BFAR conducted an initial water quality analysis and collection of fish samples in different sampling sites of the Manila Bay, particularly along Baseco Beach, Pasig River Mouth, Barge Docking, and Aplaya....
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Pulwama-like Attack Averted Near Letapora in J&K, 52kg Explosives Recovered: Sources

Yahoo Daily News 17 Sep 2020
A joint search operation earlier in the day led to the discovery of a water tank in the Karewa area of Gadikal from where 52kg of explosives in 416 packets of 125 grams each were ......
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Vikings not all Scandinavian with dark hair common, bone analysis suggests

The Independent 17 Sep 2020
Water on Mars ... Although liquid water is deemed essential for life, the researchers said the discovery has no immediate implications for the possible existence of microbial life forms on Mars as cosmic radiation bombarding its surface would make be it too hazardous for living organisms to survive....
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