
3-1
3.1 Introduction
Living beings have always inspired the imagination of inventors and scientists throughout history.
According to Greek mythology, Daedalus invented a pair of wings made out of waxed feathers so that
he an
d
hi
s
so
n
Ic
arus
co
uld
es
cape
fr
om
th
e
la
byrinth
of Cr
ete
. e
y
su
cceeded,
bu
t
Ic
arus
e
w
so cl
ose
to th
e
su
n
th
at
th
e
wa
x
me
lted
an
d
hi
s
wi
ngs
di
smantled,
wi
th
tr
agic
co
nsequences
. In re
naissance
It
aly,
Le
onardo
da Vi
nci
in
vented
fl
ying
ma
chines
an
d
su
bmarines
in
spired
by bi
rds
an
d
fi
sh
mo
re
th
an
50
0
ye
ars
ag
o,
bu
t
hi
s
in
ventions
ne
ver
ca
me
in
to
re
al
pr
actice
. e
se
at
tempts
fa
iled
no
t
be
cause
th
ey
we
re
fu
ndamentally