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  2. Flash freezing - Wikipedia

    en.wikipedia.org/wiki/Flash_freezing

    The freezing from the surface or from within may be random. [11] However, in the strange world of water, tiny amounts of liquid water are theoretically still present, even as temperatures go below −48 °C (−54 °F) and almost all the water has turned solid, either into crystalline ice or amorphous water.

  3. Liquid nitrogen - Wikipedia

    en.wikipedia.org/wiki/Liquid_nitrogen

    The temperature of liquid nitrogen can readily be reduced to its freezing point −210 °C (−346 °F; 63 K) by placing it in a vacuum chamber pumped by a vacuum pump. [2] Liquid nitrogen's efficiency as a coolant is limited by the fact that it boils immediately on contact with a warmer object, enveloping the object in an insulating layer of ...

  4. Cryopreservation - Wikipedia

    en.wikipedia.org/wiki/Cryopreservation

    Methods vary, but mixing can be done gently by inversion or rapidly by vortex and cooling can vary by either placing the cryotube directly at −50 to −95 °C, shock-freezing in liquid nitrogen or gradually cooling and then storing at −80 °C or cooler (liquid nitrogen or liquid nitrogen vapor).

  5. Plant cryopreservation - Wikipedia

    en.wikipedia.org/wiki/Plant_cryopreservation

    This is the immersion of plant material directly in liquid nitrogen, or after desiccation. This is often done with (orthodox) seeds that already have a low moisture content or pollen. [8] This method cannot be used with tissues that contain a lot of water or are sensitive to dehydration. Slow freezing. This method relies on the mechanism of ...

  6. Brr! Here are 4 ways plants, trees survive frigid winter ...

    www.aol.com/brr-4-ways-plants-trees-100133871.html

    Plants have evolved numerous strategies to deal with cold air, frozen soil, and in the coldest of conditions, lack of water through the winter. Brr! Here are 4 ways plants, trees survive frigid ...

  7. Freezing - Wikipedia

    en.wikipedia.org/wiki/Freezing

    Freezing is a phase transition in which a liquid turns into a solid when its temperature is lowered below its freezing point. [ 1 ] [ 2 ] For most substances, the melting and freezing points are the same temperature; however, certain substances possess differing solid-liquid transition temperatures.

  8. Should You Bring Planters In During Freezing Temperatures? An ...

    www.aol.com/bring-planters-during-freezing...

    “Think of it this way, in the ground, plants are protected by a large mass of soil that takes a while to cool down–like a lake or large body of water–and the cold exposure is coming from ...

  9. Cryobiology - Wikipedia

    en.wikipedia.org/wiki/Cryobiology

    Cryobiology of plants explores the cellular and molecular adaptations plants develop to survive subzero temperatures, such as antifreeze proteins (AFP) and changes in membrane composition. Cryopreservation is a critical technique in plant cryobiology, used for the long-term storage of genetic material and the preservation of endangered species ...

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