Lab
Library
Journal
Shop
Sign in
to keep
Share image
1
210
The Fairy-Land of Science
·
Arabella B. Buckley
129
"Sometimes
it
fell
Among
the
moss
with
hollow
harmony,
Dark
and
profound;
now
on
the
polished
stones
It
danced;
like
childhood
laughing
as
it
went."
The
broad
deep
river,
on
the
contrary,
makes
none
of
these
cascades
and
commotions.
The
only
places
against
which
it
rubs
are
the
banks
and
the
bottom;
and
here
you
can
sometimes
hear
it
grating
the
particles
of
sand
against
each
other
if
you
listen
very
carefully.
But
there
is
another
reason
why
falling
water
makes
a
sound,
and
often
even
a
loud
roaring
noise
in
the
cataract
and
in
the
breaking
waves
of
the
sea.
You
do
not
only
hear
the
water
dashing
against
the
rocky
ledges
or
on
the
beach,
you
also
hear
the
bursting
of
innumerable
little
bladders
of
air
which
are
contained
in
the
water.
As
each
of
these
bladders
is
dashed
on
the
ground,
it
explodes
and
sends
sound-waves
to
your
ear.
Listen
to
the
sea
some
day
when
the
waves
are
high
and
stormy,
and
you
cannot
fail
to
be
struck
by
the
irregular
bursts
of
sound.
The
waves,
however,
do
not
only
roar
as
they
dash
on
the
ground;
have
you
never
noticed
how
they
seem
to
scream
as
they
draw
back
down
the
beach?
Tennyson
calls
it,
"The
scream
of
the
madden'd
beach
dragged
down
by
the
wave;"
and
it
is
caused
by
the
stones
grating
against
each
other
as
the
waves
drag
them
down.
Dr.
Tyndall
tells
us
that
it
is
possible
to
know
the
size
of
the
stones
by
the
kind
of
noise
they
make.
If
they
are
large,
it
is
a
confused
noise,
when
smaller,
a
kind
of
scream;
while
a
gravelly
beach
will
produce
a
mere
hiss.
Marker
Marker
Fine marker
White-out
Fine white-out
Circle
Paint
Unmarker
Hand
Scalpel
Dice
Sieve
Purify
Undo
Redo
Start over
