MATHEMATICIAN
ACCELERATION
PHYSICIST
CAMBRIDGE
PRINCIPIA
SPECTRUM
REACTION
GRAVITY
INERTIA
NEWTON
ACTION
FORCE
ORBIT
MASS
B
F
O
R
C
E
X
Y
N
V
B
I
N
E
R
T
I
A
O
N
Z
P
B
T
N
I
M
B
C
A
I
W
W
N
G
I
J
A
X
U
E
C
P
A
Y
M
G
C
N
A
O
A
R
U
I
C
H
C
G
E
T
V
E
R
U
C
Z
U
W
I
A
Q
E
T
U
Y
D
K
A
U
K
G
I
E
I
V
E
C
V
I
U
I
I
M
I
P
A
S
B
E
M
L
K
U
O
I
I
N
N
O
V
U
R
E
U
Z
I
E
J
E
J
E
M
T
T
I
G
N
X
Z
B
G
S
P
E
C
T
R
U
M
T
A
Y
A
U
O
L
P
M
I
L
U
N
O
R
A
Y
I
M
M
N
I
J
M
B
R
A
P
A
L
X
H
Q
T
K
O
I
E
O
G
O
A
F
I
C
P
H
Y
S
I
C
I
S
T
C
H
I
N
U
S
E
N
M
U
U
Q
U
N
N
O
X
U
A
T
T
I
R
S
W
C
T
E
E
T
N
O
C
N
M
V
L
A
C
E
C
B
E
I
I
A
J
G
O
W
O
I
X
T
H
M
A
Y
N
I
U
P
B
H
E
I
T
O
O
U
V
U
L
U
E
T
I
E
U
I
R
E
U
U
W
U
K
G
C
O
Z
I
R
G
A
U
G
A
O
E
W
I
E
I
E
O
V
E
I
E
O
D
E
D
A
U
Z
I
A
Z
N
M
O
U
O
O
U
G
K
O
