Barlow's formula - pipe
Rayleigh Scattering - Intensity of Light from molecules
Hohmann Transfer Orbit - inclination change
Chebychev–Grübler–Kutzbach criterion
Equation of the Circle
P-wave Velocity
AC Power
Block and tackle - efficiency approximation - with friction factor
Spherical Law of Cosines
Coefficient Of Performance for a perfectly reversible cooler