How do you throw a RISEBALL?

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Jun 17, 2009
15,019
0
Portland, OR
Again - my from my unchallenged scientific perspective on this, by this community, this is incorrect.

Here is a more complete scientific report snigglet that was actually developed at MIT around the sport of Cricket that actually addresses, AND DOES NOT IGNORE Reynolds:

"We have seen that during the course of a typical shot, the ball decelerates through
the drag crisis, its boundary layers transitioning from turbulent to laminar. When the
ball is spinning, one expects the drag crisis to be crossed first on the retreating side,
where the velocity difference between ball and free stream is minimum. There would
thus arise a situation in which the boundary layer is turbulent on the advancing side,
and laminar on the retreating side. The resulting delay of boundary layer separation
on the advancing side would lead to an asymmetric wake, with air in the wake being
deflected in the direction of the retreating side, giving rise to the reverseMagnus effect,
and a lift force opposite that expected (CL < 0; Figure 6d). As the ball decelerates
further, both boundary layers will transition to laminar, and the lift anticipated on
the basis of the traditional Magnus effect (CL > 0) will be restored. To summarize,
as a typical shot decelerates through the drag crisis, its Magnus force will change
sign twice, as the retreating and advancing boundary layers transition in turn from
turbulent to laminar."

This report proved the interaction between Reynolds and Magnus (again the part ignored in the other thread) AND also proved the "assymetric" and latent forces that can act on a ball midflight causing it to have a "late-break".

ANYONE here (including me) that has claims their complete understanding of the co-dependent effects of Magnus and Reynolds on a moving ball is selling wetlands in the Sahara.....

Before coming up with a theory to explain a "jumping" action of a riseball ....... let's first have evidence that such a feat actually occurs.
 
Feb 17, 2014
7,152
113
Orlando, FL
Yes, it is a bit staggering .... .... .... .... but what is staggering is the teaching of improper vision.

The concept of relaxed open focus has been around centuries and it is in no way unique to baseball/softball. However, it has traditionally been employed to see more not less. So you can understand the skepticism.
 
Dec 7, 2011
2,366
38
Post some video that shows this 'new trajectory pattern'.

A true rise-ball profile actually "flattens out" within the last third of the flight path.

I would LOVE to bring my DD to a place that has facilities to track & record trajectories. I do not have those facilities. I am trying to get in the door on an old D3 head coach DD used to have as a batting coach that I heard has some of this stuff but have not been able to connect yet.

The moment I do get a chance and it shows that after all the different pitcher riseballs that I have caught that DD's doesn't have this "something different" with the last third of the pitch I will be the first to swallow my pride and crawl back here and admit that this is not a physical abnormality (of the balls trajectory) and just a mental phenomenon.
 
Dec 7, 2011
2,366
38
Before coming up with a theory to explain a "jumping" action of a riseball ....... let's first have evidence that such a feat actually occurs.

I am completely with you on this one FFS.

And note - this "theory" (that MIT proved by the way - mathematically) does not need to apply just to a riseball.
 
Feb 17, 2014
7,152
113
Orlando, FL
Before coming up with a theory to explain a "jumping" action of a riseball ....... let's first have evidence that such a feat actually occurs.

Traditionally it is incumbent on those bucking common wisdom to provide the proof. Not the other way around. If indeed the world is not flat it is up to you to prove otherwise.
 
Jun 17, 2009
15,019
0
Portland, OR
The concept of relaxed open focus has been around centuries and it is in no way unique to baseball/softball. However, it has traditionally been employed to see more not less. So you can understand the skepticism.

News flash .... it's been around since Adam & Eve .... which means nothing to those that don't get it.

I find improper vision usage being taught even at the MLB level. It's actually quite widespread .... and many teachings of vision usage actually induce improperly seeing the ball.
 
Jun 17, 2009
15,019
0
Portland, OR
I would LOVE to bring my DD to a place that has facilities to track & record trajectories. I do not have those facilities. I am trying to get in the door on an old D3 head coach DD used to have as a batting coach that I heard has some of this stuff but have not been able to connect yet.

The moment I do get a chance and it shows that after all the different pitcher riseballs that I have caught that DD's doesn't have this "something different" with the last third of the pitch I will be the first to swallow my pride and crawl back here and admit that this is not a physical abnormality (of the balls trajectory) and just a mental phenomenon.

Simply collect video from a side view.
 
Jun 17, 2009
15,019
0
Portland, OR
Traditionally it is incumbent on those bucking common wisdom to provide the proof. Not the other way around. If indeed the world is not flat it is up to you to prove otherwise.

I've posted the profile of a riseball several times here at DFP.

For a good reason ..... due to the laws of physics ...... not a single person has been able to capture a video of a riseball suddenly increasing it's upward trajectory as the ball approaches the plate. It simply doesn't happen.
 
Feb 17, 2014
7,152
113
Orlando, FL
I've posted the profile of a riseball several times here at DFP.

For a good reason ..... due to the laws of physics ...... not a single person has been able to capture a video of a riseball suddenly increasing it's upward trajectory as the ball approaches the plate. It simply doesn't happen.

Meaning you have not personally observed it. Nothing more, nothing less.

Need to revise my comments. Did not realize until after posting that you shifted the discussion from a late breaking pitch to a riseball increasing its upward trajectory. Two totally different animals. My comments were in the original context of a late breaking pitch.
 
Last edited:
Jun 17, 2009
15,019
0
Portland, OR
Meaning you have not personally observed it. Nothing more, nothing less.

It is difficult for some to see what doesn't exist.

But please .... make a fool of me by posting a video of a riseball suddenly increasing it's upward trajectory as it approaches the plate. I encourage you to do that ....... as during your search for such a video you are likely to come to realize the truth.
 

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