The Springfield herald., 1914-09-18
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. 90.
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responds with it, and consequent
" reflects the sky only a few de-
,grees above the horizon. the an
gle of reflection being equal to
the angle of incidence.
The sky vertical to the atmos-
.ohe1e is unable to reflect itself
in it, as is the case with body
of water or mirror, which is ac-
counted for from the fact that
!, q perpendicular surface does not
= present a sufficiently compact
body to give a reflection.
This phase of the mirage is
seen at all times in the year and
in all kinds of weather, wet or
dry, hot or cold, calm or windy,
? clear or cloudy. 1t. is almost
3 wholly a day phenomenon. but
sometimes is seen by clear
- moonlight.
.. A peculiarity of this mirage
is seen when the plane of the re-
..aecting surface corresponds with
The plane of the horizon, and
he sky apparently dips
Gown into the ground; and you
can't tell how much is one or how
much the other, or where the
ne begins or the other leaves
#. :
The water mirage at its best
1resents view that has to be
cen to be appreciated, there BEL
d g oceans. CULTS, seas, and bays,
ntinents, islands, capes, and
ninsulas, with rivers and
,untains and great forests, all
owing up as naturally as ever
real thing in life was seen.
uch views are not often pre-I
sented, but when they are they
PRESENT picture for a camera 1
The Confiagration
This feature of the water mi
raRe presents remarkable ap-
,earance when the wind is high.
thus throwing the atmospheric'
aver into waves and sprays,
giving between its broken sur
face transitory views of the land \
s.ape beyond waving, undulat-
ing, rollicking, frollicking, NOV
ing with the speed of the wind,
a perfect reproduction OF great
prairie-fire scene of waving and !
undulating flame and smoke. {,
This same waving, rolling
rocking, broken appearance of
the atmosphere is observed also,
where terrestrial objects are re-
fected in the attn osphere, tao /
rifles and ripples Following eac
ther in beautiful irregularity
ID disorder as if the layer were
partly transparent and partly
Opaque.
Prolongated Objects.
This phenomenon is accounted
for in the same way as the water
mirage, the difference being that
the plane of the reflecting sur
face is below the horizon instea
ii ABOVE it, ald is acc 1lnted fol
Al the same way as the norder,
sky mirage is acc Junted I :.
The plane Of the reflecting
surface corresponds with the
ane of the lower rart of the
d. .ects reflected, the object and
lie reflection thus appearing as
ale continuous whole, and thus
ewing that prolongated appear
ice that is SO bewildering toJ
hose who first see it.
The angle of reflection If all
lese phases of the mirage may
..e made to appear and .disaI-l
.ar by a movement Of the he'd
ap or down The distance ,cf one
foot, orless, showing that only
me same distance of the sky
! owe the horizon is reflected,
st,se closer the mirage being to
siie individual the less sky above
ssi,e horizon being reflected
The Relief Mirage.
The relief or morning mirage
is about as difficult Of explana-
tion as the fact of the mirage be-
ing here at all. !
(Contfnuod on DaQe al