STEAM ENGINE
CENTRIFUGAL GOVERNOR
James Watt
1763–1775
speed limiter
equilibrium
controller
fly-ball
inertial force
rotative steam engine
cruise control
James Clerk Maxwell
1868 
<i>On governors</i>
contro, engineering
THERMODYNAMICS
Sadi Carnot
1824
<i>Reflections on the Motive Power of Fire</i>
centrifugal governor
second law
entropy
Ludwig Boltzmann
S = k &#183; log W
amount of randomness
disorder
uncertainty of molecular states
statistical distribution
missing information
ergodic hypotesis