<s>
An	O
earth	B-Algorithm
battery	I-Algorithm
is	O
a	O
pair	O
of	O
electrodes	O
made	O
of	O
two	O
dissimilar	O
metals	O
,	O
such	O
as	O
iron	O
and	O
copper	O
,	O
which	O
are	O
buried	O
in	O
the	O
soil	O
or	O
immersed	O
in	O
the	O
sea	O
.	O
</s>
<s>
Earth	B-Algorithm
batteries	I-Algorithm
act	O
as	O
water-activated	B-Algorithm
batteries	I-Algorithm
.	O
</s>
<s>
Earth	B-Algorithm
batteries	I-Algorithm
are	O
sometimes	O
referred	O
to	O
as	O
telluric	B-Algorithm
power	I-Algorithm
sources	O
and	O
telluric	O
generators	O
.	O
</s>
<s>
One	O
of	O
the	O
earliest	O
examples	O
of	O
an	O
earth	B-Algorithm
battery	I-Algorithm
was	O
built	O
by	O
Alexander	O
Bain	O
in	O
1841	O
in	O
order	O
to	O
drive	O
a	O
prime	O
mover	O
—	O
a	O
device	O
that	O
transforms	O
the	O
flow	O
or	O
changes	O
in	O
pressure	O
of	O
a	O
fluid	O
into	O
mechanical	O
energy	O
.	O
</s>
<s>
Bain	O
buried	O
plates	O
of	O
zinc	B-Application
and	O
copper	O
in	O
the	O
ground	O
about	O
one	O
meter	O
apart	O
and	O
used	O
the	O
resulting	O
voltage	O
,	O
of	O
about	O
one	O
volt	O
,	O
to	O
operate	O
a	O
clock	O
.	O
</s>
<s>
Daniel	O
Drawbaugh	O
received	O
for	O
an	O
Earth	B-Algorithm
battery	I-Algorithm
for	O
electric	O
clocks	O
(	O
with	O
several	O
improvements	O
in	O
the	O
art	O
of	O
Earth	B-Algorithm
batteries	I-Algorithm
)	O
.	O
</s>
<s>
In	O
1875	O
,	O
James	O
C	O
.	O
Bryan	O
received	O
for	O
his	O
Earth	B-Algorithm
Battery	I-Algorithm
.	O
</s>
<s>
In	O
1885	O
,	O
George	O
Dieckmann	O
,	O
received	O
US	O
patent	O
for	O
his	O
Electric	O
Earth	B-Algorithm
battery	I-Algorithm
.	O
</s>
<s>
In	O
1898	O
,	O
Nathan	O
Stubblefield	O
received	O
for	O
his	O
electrolytic	O
coil	O
battery	O
,	O
which	O
was	O
a	O
combination	O
of	O
an	O
earth	B-Algorithm
battery	I-Algorithm
and	O
a	O
solenoid	O
.	O
</s>
<s>
The	O
Earth	B-Algorithm
battery	I-Algorithm
,	O
in	O
general	O
,	O
generated	O
power	O
for	O
early	O
telegraph	O
transmissions	O
and	O
formed	O
part	O
of	O
a	O
tuned	O
circuit	O
that	O
amplified	O
the	O
signalling	O
voltage	O
over	O
long	O
distances	O
.	O
</s>
<s>
The	O
simplest	O
earth	B-Algorithm
batteries	I-Algorithm
consist	O
of	O
conductive	O
plates	O
from	O
different	O
metals	O
of	O
the	O
electropotential	O
series	O
,	O
buried	O
in	O
the	O
ground	O
so	O
that	O
the	O
soil	O
acts	O
as	O
the	O
electrolyte	O
in	O
a	O
voltaic	O
cell	O
.	O
</s>
<s>
As	O
such	O
,	O
the	O
device	O
acts	O
as	O
a	O
primary	B-Algorithm
cell	I-Algorithm
.	O
</s>
<s>
Some	O
early	O
experimenters	O
did	O
recognize	O
that	O
these	O
currents	O
were	O
,	O
in	O
fact	O
,	O
partly	O
responsible	O
for	O
extending	O
the	O
earth	B-Algorithm
batteries	I-Algorithm
 '	O
high	O
outputs	O
and	O
long	O
lifetimes	O
.	O
</s>
<s>
Lord	O
Kelvin	O
's	O
"	O
sea	B-Algorithm
battery	I-Algorithm
"	O
was	O
not	O
a	O
chemical	O
battery	O
.	O
</s>
<s>
To	O
a	O
zinc	B-Application
plate	O
,	O
a	O
layer	O
of	O
felt	O
could	O
be	O
applied	O
.	O
</s>
<s>
To	O
use	O
the	O
natural	O
electricity	O
,	O
earth	B-Algorithm
batteries	I-Algorithm
fed	O
electromagnets	O
,	O
the	O
load	O
,	O
that	O
were	O
part	O
of	O
a	O
motor	O
mechanism	O
.	O
</s>
