约 443 个结果
在新选项卡中打开链接
  1. Ice - Wikipedia

    • 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 a mineral. Depending on the presence of impurities suc… 展开

    Physical properties

    Ice possesses a regular crystalline structure based on the molecule of water, which consists of a single oxygen atom covalently bonded … 展开

    Natural formation

    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 … 展开

    Ablation

    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 … 展开

    Role in human activities

    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 fro… 展开

    Impacts of climate change

    Greenhouse gas emissions from human activities unbalance the Earth's energy budget and so cause an accumulation of heat. About 90% of that heat is added to ocean heat content, 1% is retained in the atmosphere and … 展开

    Non-water

    The solid phases of several other volatile substances are also referred to as ices; generally a volatile is classed as an ice if its melting or sublimation point lies above or around 100 K (−173 °C; −280 °F) (assuming stand… 展开

    See also

    Water portal
    Ice famine – Historical scarcity of commercial ice
    Ice jacking – Structural damage caused by freezing water
    Jumble ice – Irregular jagged ice formed over water… 展开

     
  1. Giant Splitting of the Hydrogen Rotational Eigenenergies in the

  2. WikiJournal Preprints/Cryometeors - Wikiversity

  3. Greenland ice sheet - Wikipedia

  4. Countdown to an ice-free Arctic: New research warns of …

  5. Permafrost - Arctic, Ground Ice, Subsurface | Britannica

  6. Could melting ice wake up Antarctica’s volcanoes? - Science

  7. Snow - Wikipedia

  8. Countdown to an ice-free Arctic: Research warns of accelerated …

  9. Arctic ice-free day could first occur as early as 2027: Study - The Hill