Baseball & Golf
 

Any similarities that you can see?...like full arm extension post impact, steady head....firm lead wrist....:)

Yes,

More than I can think of.

Yes - In first pic of Dodger player - hand coming off club, errr, bat. Looks like my swing. About to fall flat on face while ball dribbles 2 inches in front of 2 feet of turf I laid over it.. :confused1 LOL

Seriously - full arm extension (why can't I do that instead of chicken winging it) after impact, flat lead wrist (I'd give my left... arm to be able to do that), and stable head ( like I said, I'd fall on my face).

Again I make jokes - but you can see the two of the three basic essentials,
1. Stationary head
2. balance
3. and you could infer rhythm, it has to be there even though you don't see the swing in motion.

You can also see one of the three basic imperatives.
1. Flat lead Wrist.

You could also infer that two of the three basic imperatives had to take place:

2. club head lag pressure
3. straight plane line (for a baseball swing).

A hinge action
of an angular motion
operating on an inclined plane (baseball swing is not a flat or horizontal plane, there is some angle to it most of the time, although it is nowhere near as steep of a plane of a golf swing)

Hmm, The Golfing Machine?