Secondary Forces Explored - Comments

[klotza]

klotza submitted a new PF Insights post

Secondary Forces Explored

Continue reading the Original PF Insights Post.

 

[Drakkith]

Nice article!

The weak force sucks. Neutrinos are cool though.

 

[Greg Bernhardt]

Nice article!

@Orodruin will be satisfied

 

[Useful nucleus]

Truly insightful, thanks for sharing !

 

[klotza]

Truly insightful, thanks for sharing !

Glad you enjoyed.

 

[create14all]

This is an interesting notion.

When tidal fields reshape rotating planets or moons, this can effect how those objects rotate. When an object is elongated, it is in a preferred tidal configuration, and as it rotates out of that configuration, there is a residual torque resisting its rotation, which over long periods of time slows down the rotation period until it matches the orbital period, such that the object can always have its preferred* configuration in the tidal field. This is why the same side of the moon always points at the Earth, and why over long periods of time the Earth’s rotation is slowing down, until its same side will always be pointing at the moon**.

Do you have any calculations or further explanations?

 

[klotza]

You're looking for more detailed calculations about tidal locking?

Maybe here: http://www.astro.sunysb.edu/lattimer/AST301/lecture_tide.pdf