RotatingGravitationalEllipse
Lagrange
AgingSpring
Newton
Einstein
LeVerrier
Bohr
Math
Otecal
Images
Contact
RotatingGravitationalEllipse
Lagrange
AgingSpring
Newton
Einstein
LeVerrier
Bohr
Math
Otecal
Images
Contact
The second order space by time relation
space-by-time