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If the liquid is frozen, NOT ONLY IS THE SIGNAL LOST, but the
resulting expansion
may burst the encapsulation. ... Methyl alcohol best compromise...
or .... (See
Protonmagforum Posting # 8
.
Why is the signal lost when the liquid turns to a solid? It will
still have the
same number of Hydrogen atoms!
Roger speculates that this might be because the Hydrogen atoms are
not as free to
vibrate when frozen.
From an old encyclopedia the following: "According to this theory,
the molecules
of water, which in the liquid form have considerable movement, have
to occupy
definite relative positions when the water assumes the form of ice.
When pure
water is cooled to 0 C., the energy of the molecules is sufficiently
diminished to
allow attractive forces to come into play under which the molecules
assume the
positions required for freezing but the presence of salt ...
hinders...
But paraffin contracts when freezing, so maybe different (maybe
even worse)
than water???
Does this mean that if, for example: even if solid paraffin is
suitable in all
other respects, that it will NOT work because it is a solid?
To make a long story short - If solids must be excluded as a
possible proton
rich substance, I would like to know so I can exclude them from the
search.
Best regards to all.
Dale
[email protected]
103 North Sixth Avenue
Virginia, MN 55792 USA
resulting expansion
may burst the encapsulation. ... Methyl alcohol best compromise...
or .... (See
Protonmagforum Posting # 8
.Why is the signal lost when the liquid turns to a solid? It will
still have the
same number of Hydrogen atoms!
Roger speculates that this might be because the Hydrogen atoms are
not as free to
vibrate when frozen.
From an old encyclopedia the following: "According to this theory,
the molecules
of water, which in the liquid form have considerable movement, have
to occupy
definite relative positions when the water assumes the form of ice.
When pure
water is cooled to 0 C., the energy of the molecules is sufficiently
diminished to
allow attractive forces to come into play under which the molecules
assume the
positions required for freezing but the presence of salt ...
hinders...
But paraffin contracts when freezing, so maybe different (maybe
even worse)
than water???
Does this mean that if, for example: even if solid paraffin is
suitable in all
other respects, that it will NOT work because it is a solid?
To make a long story short - If solids must be excluded as a
possible proton
rich substance, I would like to know so I can exclude them from the
search.
Best regards to all.
Dale
[email protected]
103 North Sixth Avenue
Virginia, MN 55792 USA