X-Message-Number: 31975
Date: Tue, 15 Sep 2009 17:56:08 -0700
Subject: CAS physics
From: Brian Wowk <>

Alexei Potapov wrote:

> I) Overcooling of H20 liquid in electrical field.

> 1) Rotating molecules cannot form ice crystal .
> 2) Water molecule is an electricaly polarised molecule and can
interact with electrical field.

      Overcooling (supercooling) of solutions exposed to microwaves is
a known phenomenon in cryobiology before the CAS system.  I know of at
least one paper that claims to observe this effect.

      However, did anyone notice that one of the two posters that were
emailed to Jeff Davis recorded the observation that the CAS system did
NOT increase supercooling?  Solutions were measured to freeze (release
latent heat) at the same temperature whether they were exposed to a
magnetic field or not.  If this was a study of the CAS system, then if
the CAS system is not causing water to supercool and it is not causing
water to vitrify (physically impossible at the temperatures used) then
what is it doing?

> II) Elecrical field and crystal form.
> 1) is there's difference btw water frozen on its place VS water formed
in crystal.
> 2) Is it enough freesing speed to freeze water molecules in it's places ?

      Yes, there is a difference between water stopped in place
(vitrified) vs. water that is crystallized into ice.  However it is
physically impossible to vitrify water at the temperatures used by the
CAS system.  The bonds formed between randomly-oriented water
molecules are so weak that they cannot hold at temperatures warmer
than about 140 or 150 Kelvins.  Pure water in bulk can only exist as
ice between 150K and 230 K, or as liquid or ice between 230 K and 273
K.  It cannot be vitrified in that high temperature range.

       It's hard for me to get excited about the cryopreservation
applications of a system with unclear physics and only two scientific
posters (not papers) studying applications on living tissue.

---Brian Wowk

Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=31975