-
Главная
-
- Книги
-
- Авторы
-
- Жюль Верн
-
- Путешествие на Луну
-
- Стр. 17/99
Для того чтобы воспользоваться озвучкой предложений, необходимо
Войти или зарегистрироваться
Озвучка предложений доступна при наличии PRO-доступа
Купить PRO-доступ
Until
that
time
most
people
had
been
ignorant
of
the
mode
in
which
the
distance
which
separates
the
moon
from
the
earth
is
calculated
.
They
took
advantage
of
this
fact
to
explain
to
them
that
this
distance
was
obtained
by
measuring
the
parallax
of
the
moon
.
The
term
parallax
proving
"
caviare
to
the
general
,
"
they
further
explained
that
it
meant
the
angle
formed
by
the
inclination
of
two
straight
lines
drawn
from
either
extremity
of
the
earth
's
radius
to
the
moon
.
On
doubts
being
expressed
as
to
the
correctness
of
this
method
,
they
immediately
proved
that
not
only
was
the
mean
distance
234,347
miles
,
but
that
astronomers
could
not
possibly
be
in
error
in
their
estimate
by
more
than
seventy
miles
either
way
.
To
those
who
were
not
familiar
with
the
motions
of
the
moon
,
they
demonstrated
that
she
possesses
two
distinct
motions
,
the
first
being
that
of
rotation
upon
her
axis
,
the
second
being
that
of
revolution
round
the
earth
,
accomplishing
both
together
in
an
equal
period
of
time
,
that
is
to
say
,
in
twenty-seven
and
one-third
days
.
The
motion
of
rotation
is
that
which
produces
day
and
night
on
the
surface
of
the
moon
;
save
that
there
is
only
one
day
and
one
night
in
the
lunar
month
,
each
lasting
three
hundred
and
fifty-four
and
one-third
hours
.
But
,
happily
for
her
,
the
face
turned
toward
the
terrestrial
globe
is
illuminated
by
it
with
an
intensity
equal
to
that
of
fourteen
moons
.
As
to
the
other
face
,
always
invisible
to
us
,
it
has
of
necessity
three
hundred
and
fifty-four
hours
of
absolute
night
,
tempered
only
by
that
"
pale
glimmer
which
falls
upon
it
from
the
stars
.
"
Some
well-intentioned
,
but
rather
obstinate
persons
,
could
not
at
first
comprehend
how
,
if
the
moon
displays
invariably
the
same
face
to
the
earth
during
her
revolution
,
she
can
describe
one
turn
round
herself
.
To
such
they
answered
,
"
Go
into
your
dining-room
,
and
walk
round
the
table
in
such
a
way
as
to
always
keep
your
face
turned
toward
the
center
;
by
the
time
you
will
have
achieved
one
complete
round
you
will
have
completed
one
turn
around
yourself
,
since
your
eye
will
have
traversed
successively
every
point
of
the
room
.
Well
,
then
,
the
room
is
the
heavens
,
the
table
is
the
earth
,
and
the
moon
is
yourself
.
"
And
they
would
go
away
delighted
.
So
,
then
the
moon
displays
invariably
the
same
face
to
the
earth
;
nevertheless
,
to
be
quite
exact
,
it
is
necessary
to
add
that
,
in
consequence
of
certain
fluctuations
of
north
and
south
,
and
of
west
and
east
,
termed
her
libration
,
she
permits
rather
more
than
half
,
that
is
to
say
,
five-sevenths
,
to
be
seen
.
As
soon
as
the
ignoramuses
came
to
understand
as
much
as
the
director
of
the
observatory
himself
knew
,
they
began
to
worry
themselves
regarding
her
revolution
round
the
earth
,
whereupon
twenty
scientific
reviews
immediately
came
to
the
rescue
.
They
pointed
out
to
them
that
the
firmament
,
with
its
infinitude
of
stars
,
may
be
considered
as
one
vast
dial-plate
,
upon
which
the
moon
travels
,
indicating
the
true
time
to
all
the
inhabitants
of
the
earth
;
that
it
is
during
this
movement
that
the
Queen
of
Night
exhibits
her
different
phases
;
that
the
moon
is
full
when
she
is
in
opposition
with
the
sun
,
that
is
when
the
three
bodies
are
on
the
same
straight
line
,
the
earth
occupying
the
center
;
that
she
is
new
when
she
is
in
conjunction
with
the
sun
,
that
is
,
when
she
is
between
it
and
the
earth
;
and
,
lastly
that
she
is
in
her
first
or
last
quarter
,
when
she
makes
with
the
sun
and
the
earth
an
angle
of
which
she
herself
occupies
the
apex
.
Regarding
the
altitude
which
the
moon
attains
above
the
horizon
,
the
letter
of
the
Cambridge
Observatory
had
said
all
that
was
to
be
said
in
this
respect
.
Every
one
knew
that
this
altitude
varies
according
to
the
latitude
of
the
observer
.
But
the
only
zones
of
the
globe
in
which
the
moon
passes
the
zenith
,
that
is
,
the
point
directly
over
the
head
of
the
spectator
,
are
of
necessity
comprised
between
the
twenty-eighth
parallels
and
the
equator
.
Hence
the
importance
of
the
advice
to
try
the
experiment
upon
some
point
of
that
part
of
the
globe
,
in
order
that
the
projectile
might
be
discharged
perpendicularly
,
and
so
the
soonest
escape
the
action
of
gravitation
.
This
was
an
essential
condition
to
the
success
of
the
enterprise
,
and
continued
actively
to
engage
the
public
attention
.
Regarding
the
path
described
by
the
moon
in
her
revolution
round
the
earth
,
the
Cambridge
Observatory
had
demonstrated
that
this
path
is
a
re-entering
curve
,
not
a
perfect
circle
,
but
an
ellipse
,
of
which
the
earth
occupies
one
of
the
foci
.
It
was
also
well
understood
that
it
is
farthest
removed
from
the
earth
during
its
apogee
,
and
approaches
most
nearly
to
it
at
its
perigee
.
Such
was
then
the
extent
of
knowledge
possessed
by
every
American
on
the
subject
,
and
of
which
no
one
could
decently
profess
ignorance
.
Still
,
while
these
principles
were
being
rapidly
disseminated
many
errors
and
illusory
fears
proved
less
easy
to
eradicate
.
