o
'
_
,
,
f
,
*
l
'
.
.
-
100 {L
.
_
\_—l
«a.
‘
«
_
1 cm
l___l
‘
;v.
,
i.
«!
”“'
‘
"
3
.” j Ï‘
\ ' f7îî.
f
"
.
"
"
:
_
.
.
<1‘3_
_
'
.
_
_
_
'
—‘
..
*‘:;»
.—,_
,
,‘Ù_'«f
\
.
‘
_
»
.;
_'_ j
._
__
.
‘
.
î”=î-—f
;.‘r“+_:" uv“ "'
»“
’.»f«:
‘“—î
.
'
.
‘
,
'_*__{\.
_.
»_
.
_
\
__
.
:
*
…
_
.."
—'
—
_
'
.;î‘"
.
î
'
‘
‘x
'
'
_
"
"
—
_i
…
_.
Α:;' —
’
“«.
i
"
'
-
’
"
'
100 p.
1 mm
1
[__|
FIGURE 9. Crystal growth in supercooled water.
a. Growth on a single crystal, photographed after removal from the liquid (— 2 °C).
b.— 3.5 °C.
c.
—
4.6 °C.
d. Viewed along “a” axis direction : — 4 °C.
Précédent

- 31/249

Suivant