UntiI
r
?
?
?
ntly
,
the
water
whe
?
l
and
the
water
____________________
?
play
?
d
an
important
part
in
industry
as
a
way
of
?
hanging
?
nerg
?
into
power
.
A
wat
?
r
wh
?
?
I
is
mad
?
of
a
larg
?
wh
?
?
l
with
a
numb
?
r
of
____________________
?
s
arrang
?
d
on
th
?
outside
of
the
whe
?
l
.
?
h
?
wheel
is
atta
?
h
?
d
verti
?
ally
to
a
horizontal
____________________
?
.
?
h
?
wh
?
?
l
must
b
?
n
?
ar
a
water
suppl
?
,
so
that
it
?
an
us
?
the
wat
?
r
to
turn
it
.
The
wat
?
r
supply
may
?
ome
from
a
flowing
str
?
am
,
or
a
miIl
pond
wh
?
r
?
th
?
str
?
am
is
____________________
?
d
.
?
he
pro
?
ess
starts
with
the
slui
?
e
gat
?
_
this
is
a
barrier
whi
?
h
?
?
ntrols
th
?
flow
of
water
.
First
,
th
?
sIui
?
e
gat
?
is
open
?
d
.
?
his
?
auses
the
wat
?
r
from
th
?
miII
pond
to
rush
down
a
?
hannel
?
aIIed
a
mill
ra
?
?
towards
the
water
wh
?
el
.
?
h
?
wh
?
eI
starts
to
rotat
?
be
?
aus
?
th
?
weight
of
th
?
wat
?
r
push
?
s
against
it
and
turns
it
around
.
This
?
r
?
at
?
s
a
____________________
?
?
whi
?
h
pow
?
rs
th
?
turbin
?
.
?
h
?
pow
?
r
is
____________________
from
th
?
turbin
?
through
th
?
axl
?
to
driv
?
gears
or
b
?
lts
.
?
his
pow
?
r
?
an
b
?
us
?
d
for
a
vari
?
ty
of
purposes
.
In
th
?
19th
and
early
20th
?
entury
th
?
se
in
?
lud
?
d
____________________
flour
,
____________________
?
ring
iron
,
making
?
Ioth
and
?
rushing
wood
into
____________________
to
mak
?
pap
?
r
.
