<s>
Twin	B-Algorithm
Inverted	I-Algorithm
Pulse	I-Algorithm
Radar	I-Algorithm
(	O
TWIPR	B-Algorithm
or	O
TWIPS	O
)	O
is	O
a	O
type	O
of	O
radar	B-Application
where	O
a	O
negative	O
and	O
a	O
positive	O
pulse	O
are	O
sent	O
out	O
in	O
quick	O
succession	O
.	O
</s>
<s>
This	O
is	O
how	O
dolphins	B-Application
locate	O
fish	O
through	O
a	O
cloud	O
of	O
bubbles	O
.	O
</s>
