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Symposium on unidentified flying objects: hearings before the Committee on Science and Astronautics, U.S. House of Representatives, Ninetieth Congress, second session, July 29, 1968.

U.S. House of Representatives · 1968-07-29 · 256 pages · text from the file's own layer

This is the printed record of a July 29, 1968 symposium on unidentified flying objects held by the Committee on Science and Astronautics of the U.S. House of Representatives, chaired by Rep. J. Edward Roush. The committee heard statements from six scientists: J. Allen Hynek, James E. McDonald, Carl Sagan, Robert L. Hall, James A. Harder and Robert M. L. Baker. It also printed papers from Donald Menzel, Stanton Friedman, Frank Salisbury and others. Hynek argued that puzzling UFO reports from competent witnesses deserve serious scientific study.

  • p. 225 …14 Spencer, D. F. and Jaffe, L. D., "Feasibility of Interstellar Travel," Acta Astronautics,Vol. IX…
  • p. 228 …508 Grant St., Pittsgurgh, Pa. 15219.) 1. Spencer, D. F. and Jaffe, L. D., "Feasibility of…
201
Mirages
are
not
the only
apparitions
that
appear
to
maneuver.
I
think
I
was
the
first
person
to
point
out
that
a
special
kind of
reflection
of
the
sun
(or
moon),
sometimes
called
a
sun dog (or
moon
dog),
also
can
perform
evasive
action.
Layers
of
ice
crystals
are
necessary,
like
those
found
in cirrus
clouds.
An
aviator
flying
through
cirrus
sometimes
sees
a
peculiar metallic
appearing
reflection,
a
reflection
of
the
sun
or
moon.
He
may
elect
to
chase
it.
The
apparition
will
recede
if
approached, or
approach
if
the
pilot
reverses
his
course.
The
object
seems
to
execute
evasive
action!
As
the
pilot
runs
out
of
ice
crystals,
the
UFO
will
seem
to
put
on
a
burst
of
speed
and
disappear
into
the
distance.
But
such
behavior
does
not
imply,
as
the
UFO
addicts
argue,
the
presence of
an
intelligence
pilot
to
guide
it.
No!
It's
like
chasing
a
rainbow,
which
recedes
as
you
approach
it
or
advances
as you
move
away.
As
we
look over the
Air Force
files,
we
find
that
some
90
per cent
of
the
solved
cases
result
from
the
presence
of
material
objects
in the atmosphere.
I
list
some
of
these
objects.
Reflections
from
airplanes,
banking
in
the
sun,
simulate
saucers.
Momentarily,
a
bright
reflection
appears
and
then
vanishes.
The
plane
is invisible
in
the
distant haze.
An
imaginative person concludes that
an
inter-
planetary
vehicle
has
come
in
fast,
reversed course,
and
rapidly
receded
into
the
distance.
Often
the
observers
say
"It
couldn't
have
been
a
plane,"
because
"no
noise
was
heard"
or
because
"it
moved
too
swiftly."
And
yet
careful
study
proves
beyond doubt
that
the
object
was
indeed
an
aircraft.
The
brilliant
land-
ing
lights
of
a
plane
can
almost
dazzle
a
person
on
the ground.
Sometimes
such
lights
may
appear
to
be
very
close
only
a
few
hundred
feet
away.
You'd
be
surprised
at
the
variety
of
mundane
objects
that
people
have
re-
ported
as
UFO's.
Balloons,
child's
balloons,
weather
balloons
lighted
or
un-
lighted,
and
especially
those
enormous
plastic
balloons
as
large
as
a
ten
-story
building,
which
carry
scientific
instruments
to
altitudes
of
100,000 feet!
Re-
flecting
full
sunlight
while the
earth
below
lies
in
dim
twilight,
these
balloons
shine
more
brilliantly
than
Venus!
Advertising planes
or
illuminated
blimps
frequently
become UFO's.
Birds,
by
day
or
night,
often
reflect
light
from
their
shiny
'backs.
Wind-blown
kites,
hats,
paper,
plastic
sacks,
feathers,
spider
-webs,
seed pods,
dust
devils
have
all
contributed
their
share of
UFO
sightings.
Insects
single
or
in
swarms.
Saucer
-shaped
clouds,
reflections
of
searchlights
on
clouds!
Special
space experiments,
such
as
rocket-launched
sodium vapor
releases
or
balloons
from
Wallop's Island
have
also
produced
spectacular apparitions!
Ball
lightning
and
the
Aurora
Borealis
occasionally contribute.
Reflections
from power
lines,
insulators,
television
antennas,
radars, radio
telescopes,
even apartment
windows!
These,
too,
have
produced
realistic
UFO's.
I
could
add
to
this
list
almost
indefinitely.
But
the
chief
point
I want
to
make
is
that
simple
phenomena
like
the above
have
tricked
intelligent
people
into
reporting
a
UFO.
But
there
are
a few
other
phenomena
that
can
produce
UFO's
of
a
type
that,
as
far
as
I
know,
the Air Force
still
does
not
recognize.
I quote
from an
article
on
"Vision"
in
Volume 14
of
the
McGraw-Hill
Encyclo-pedia of Science
and
Technology.
".
. .
any
observant person
can
detect swirling
clouds
or
spots
of
'light'
in
total
darkness or while looking
at
a
homogeneous
field
such
as a
bright blue sky." If
you
want
to see
flying
saucers
just look up.If
you
don't
see
them, you
probably are not
"observant."
I
see
them most
clearly
in
a
dark room
or
on
a
moonless
night with the
sky
even darker with
heavy
clouds.
I
find
stars.somewhat
distracting.
Just
lie
down
on
your
back,
open your eyes
and
see
the saucers
spin.
The show
is
free.
You
will
almost
surely see
bright, irregular
patches
of
light
form.
Most
of
them seem
grey green,
but
I
occasionally see
silver
or
gold
and
occasionally red.
I
can
imagine
windows
in
some
of
them.
As
you
move
your eyes they
will
cavort over
the sky.
To
speed
up
the
action just
rub your eyes
like
a
person
coming
out
of
a
sleep.
Occasionally the
whole
field
becomes
large
and
luminous.
Now,
I
ask
you.
How
can you be sure that the
UFO
reported
by an
airline pilot is
not
one
of
these spurious
images?
And
even
if
an
alerted
co-pilot
confirms
it,
he might
also
be responding
to
a
similar
effect
in his
own
eyes!
The
chemistry
and
physiology of the
human
eyes are
certainly responsible
for
many
UFO
sightings.
The
eye responds in
different
ways
to
different
kinds ofstimuli.
A
sudden
burst of bright
light, like
that
from a
flash bulb, for example,exerts
an
enduring
effect
on
the eye.
The
light
from
the
flash
produces
an imme-
diate
change
in the
so-called visual purple of the
retina.
In a
sense the
retinal
spot on which the image
fell
becomes
fatigued.
For some minutes after the
flash
97-8180--68-14

Cases discussed

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Hearing transcript, from the govinfo collection. The PDF is mirrored here; the original link is above. 256 pages are in the text index: search them above, or from the library's search.