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Does the 'softening' of ice explain its slipperiness?

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  Does the 'softening' of ice explain its slipperiness? Sam Wormley <swormley1@gmail.com> - 2016-01-07 15:16 -0600
    Re: Does the 'softening' of ice explain its slipperiness? "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-01-07 14:47 -0800
      Re: Does the 'softening' of ice explain its slipperiness? benj <nobody@gmail.com> - 2016-01-07 21:20 -0500

#543723 — Does the 'softening' of ice explain its slipperiness?

Does the 'softening' of ice explain its slipperiness?
> http://physicsworld.com/cws/article/news/2016/jan/06/does-the-softening-of-ice-explain-its-slipperiness

> A new model of the slipperiness of ice suggests that a layer of
> disordered ice forms underneath a sliding object. The model was
> developed by Bo Persson of Forschungszentrum Jülich in Germany, and
> it could ultimately find practical application in helping to develop
> better skis, or improve traction in winter footwear or tyres.
>
> Ice is, counterintuitively, not inherently slippery. Instead, it
> becomes so through the formation of a thin layer of meltwater on its
> surface. This liquid water can be created either by frictional heat
> or through a phase transition called premelting, which can occur at
> temperatures below the freezing point of water.

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#543762

On Thursday, January 7, 2016 at 1:16:13 PM UTC-8, Sam Wormley wrote:
> Does the 'softening' of ice explain its slipperiness?
> > http://physicsworld.com/cws/article/news/2016/jan/06/does-the-softening-of-ice-explain-its-slipperiness
> 
> > A new model of the slipperiness of ice suggests that a layer of
> > disordered ice forms underneath a sliding object. The model was
> > developed by Bo Persson of Forschungszentrum Jülich in Germany, and
> > it could ultimately find practical application in helping to develop
> > better skis, or improve traction in winter footwear or tyres.
> >
> > Ice is, counterintuitively, not inherently slippery. Instead, it
> > becomes so through the formation of a thin layer of meltwater on its
> > surface. This liquid water can be created either by frictional heat
> > or through a phase transition called premelting, which can occur at
> > temperatures below the freezing point of water.
> 
> -- 
> 
> sci.physics is an unmoderated newsgroup dedicated
> to the discussion of physics, news from the physics
> community, and physics-related social issues.

Its water on ice created by pressure and friction.Tredert

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#543795

On 01/07/2016 05:47 PM, reber g=emc^2 wrote:
> On Thursday, January 7, 2016 at 1:16:13 PM UTC-8, Sam Wormley wrote:
>> Does the 'softening' of ice explain its slipperiness?
>>> http://physicsworld.com/cws/article/news/2016/jan/06/does-the-softening-of-ice-explain-its-slipperiness
>>
>>> A new model of the slipperiness of ice suggests that a layer of
>>> disordered ice forms underneath a sliding object. The model was
>>> developed by Bo Persson of Forschungszentrum Jülich in Germany, and
>>> it could ultimately find practical application in helping to develop
>>> better skis, or improve traction in winter footwear or tyres.
>>>
>>> Ice is, counterintuitively, not inherently slippery. Instead, it
>>> becomes so through the formation of a thin layer of meltwater on its
>>> surface. This liquid water can be created either by frictional heat
>>> or through a phase transition called premelting, which can occur at
>>> temperatures below the freezing point of water.
>>
>> --
>>
>> sci.physics is an unmoderated newsgroup dedicated
>> to the discussion of physics, news from the physics
>> community, and physics-related social issues.
>
> Its water on ice created by pressure and friction.Tredert
>
Think Ice skates, Herb!  I am very clever and probably the only true 
thinker here.

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