windshield fluid sprayer

[Zsolt]

I will test it when (if) it goes down to 40 below this winter and let
you know. :)
   Zsolt

Robert Myers wrote:

> --
> Bullpucky, Phil.  Absolute nonsense.  The colder sample freezes
> first.  There is simply no way around thermodynamics.  The hot sample must
> first lose heat to reach the starting temperature of the colder
> sample.  This takes time during which the colder sample has reached a lower
> temperature and/or has started already to freeze.
>
>
> At 02:50 PM 11/29/01, Phil Payne wrote:
>
>
>>>Once, while skiing, an ex-engineer demonstrated an interesting
>>>phenomena around boiling water and cold temperatures.
>>>
>>>At -40 degrees (figure it out, C or F), take a bucket full of
>>>almost boiling water, and fling the water in the air.
>>>
>>>Guess what happens? (hint: not what you think)
>>>
>>The hot freezes first because excess pressure inside a droplet is T/r,
>>where T is the surface tension and r is the radius.  Two
>>effects - surface tension is lower at high temperatures and there is
>>energy available as heat, so much smaller droplets can form.
>>
>>Mass per unit surface area is less, so freezing is faster.
>>
>>--
>>  Phil Payne
>>  http://www.isham-research.com/quattro
>>  +44 7785 302 803
>>  +49 173 6242039
>>
>>
>>
>>
>>---
>>Incoming mail is certified Virus Free.
>>Checked by AVG anti-virus system (http://www.grisoft.com).
>>Version: 6.0.303 / Virus Database: 164 - Release Date: 11/24/01
>>
>
> Bob
> *****
>   Robert L. Myers   304-574-2372
>   Rt. 4, Box 57,  Fayetteville, WV 25840 USA   WV tag Q SHIP
>   '95 urS6  Cashmere Grey - der Wunderwagen    ICQ 22170244
>   http://www.cob-net.org/church/pvcob.htm
> *****
> --
>
>
>