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-   -   Baseball's Black Hole - Terminal Velocity (https://forum.officiating.com/baseball/51034-baseballs-black-hole-terminal-velocity.html)

SAump Sun Jan 18, 2009 07:09pm

Baseball's Black Hole - Terminal Velocity
 
Consider the terminal velocity of a baseball. It has been mathematically proven to occur at 73.8mph. A knuckleball or curve ball released at 80mph may decelerate to 73.8mph over the plate. Are these "strange" effects sharply noticed at any other velocity?

Wind tunnel lab experiments confirm similar baseball terminal velocities between 92 and 94mph. A 4-seam, slider, cut or sinking fastball is released at 100mph and decelerates to 92 mph at the plate. A faster spinning 2-seam fastball doesn't decelerate or move as much. Are any of these "strange" effects comparable at other velocities?

The ball physically "hops" twice, at 73.8mph and 92-94mph in the air we breath. There is direct evidence from wind tunnel experiments available. There is indirect evidence available from MLB hitters and umpires. Consider it a decoupling in the air waves, similar to a sound barrier, around the baseball while passing through its terminal velocity.

http://en.wikipedia.org/wiki/Trajectory_of_a_projectile
http://www.100.nist.gov/curverelease.htm

tornado Mon Jan 19, 2009 09:34am

Who else hears Rod Serling's voice?

Kevin Finnerty Mon Jan 19, 2009 10:04am

It makes me want to sit back and take a breathe.

tip184 Mon Jan 19, 2009 10:17am

Too much physics for a Monday morning. The article you posted has no flow, it doesn't explain concepts, and it is just incomprehensible. Why can scientists not write anything in english?

Anyone who doesn't think a fastball can rise hasn't been calling a high enough caliber of baseball. The reasoning that because gravity pulls something towards the ground, therefore a fastball cannot rise, leaves out too many important facts.

Tim C Mon Jan 19, 2009 12:10pm

Quote:

"Anyone who doesn't think a fastball can rise hasn't been calling a high enough caliber of baseball. The reasoning that because gravity pulls something towards the ground, therefore a fastball cannot rise, leaves out too many important facts."
Oh cripes, now SA has another uniformed follower.

Mate, over the last 10 years this site (and others) have proven time-and-time-again that a baseball thrown overhand CANNOT rise.

And trust me (unless your an ex-major leage umpire that worked in season games) I have called a higher caliber of baseball than you my friend.

I hope no one else wastes their time answering yet somone who lives in the "mythical land" of the rising fastball.

~Sigh~

MrUmpire Mon Jan 19, 2009 12:18pm

Would someone, please, PLEASE, lock this thread.

Emperor Ump Mon Jan 19, 2009 12:57pm

Mythbusters busted the "rising baseball" myth in their baseball special a while back.

Tim C Mon Jan 19, 2009 01:31pm

~Sigh~
 
I saw the Myth Busters piece. I also read and watched at least 10 other definitive studies that show gravity does work.

I guess we'll always have people that choose to live in "Myth World"!

I especially like those that try to shout us down by saying we don't work "high enough quality" of baseball to have seen this.

Sad, just sad in a way.

SAump Mon Jan 19, 2009 01:57pm

The "High Strike" Zone
 
Quote:

Originally Posted by tornado (Post 570036)
Who else hears Rod Serling's voice?

I was strictly talking terminal velocity. The baseball does "silly things" at or near terminal velocity.

Pretty good "science-fiction" analogy posted by member tornado, both classy and intellectual.

bob jenkins Mon Jan 19, 2009 03:02pm

Quote:

Originally Posted by SAump (Post 570138)
I was strictly talking terminal velocity. The baseball does "silly things" at or near terminal velocity.

Key words in comment include turbulent flow, vortex channel, vorticity, etc.

Pretty good "science-fiction" analogy posted by member tornado, both classy and intellectual.


Do you have any idea what "terminal velocity" means?

Please stop posting this crap.

MrUmpire Mon Jan 19, 2009 03:12pm

Quote:

Originally Posted by bob jenkins (Post 570163)
Do you have any idea what "terminal velocity" means?


Judging from his post, no, he does not.

ter·mi·nal ve·loc·i·ty
• n. Physics the constant speed that a freely falling object eventually reaches when the resistance of the medium through which it is falling prevents further acceleration.

Kevin Finnerty Mon Jan 19, 2009 04:05pm

Terminal velocity is the speed that a train is traveling when it goes right through a train terminal without stopping.

I can't believe more people don't know that.

SethPDX Mon Jan 19, 2009 05:30pm

Quote:

Originally Posted by tip184 (Post 570057)
Too much physics for a Monday morning. The article you posted has no flow, it doesn't explain concepts, and it is just incomprehensible. Why can scientists not write anything in english?

There's a simple explanation for this part. As for myself, I will trust Tim (and gravity).

On the other hand, he linked a Wikipedia article, so he must be right...;)

tballump Mon Jan 19, 2009 05:36pm

Once again who gives a rats anus-- and who gives a flying fornication. Next time we all need to band together and make sure there are no responses to a post like this, matter of fact, nothing personal (as this is directed at the post and not the person posting this), but I will not even open it to read. Let's follow Tim_C's lead. This type post is counterproductive on this site. It belongs on a physics post with Earl Weaver who I'm sure would be interested and love to hear all about it before he comes out of retirement or passes on to managerial heaven.

LDUB Mon Jan 19, 2009 06:38pm

I can seem to find the link to add someone to my ignore list. Has that feature been removed?

BigUmp56 Mon Jan 19, 2009 08:50pm

Quote:

Originally Posted by tballump (Post 570233)
Once again who gives a rats anus-- and who gives a flying fornication. Next time we all need to band together and make sure there are no responses to a post like this, matter of fact, nothing personal (as this is directed at the post and not the person posting this), but I will not even open it to read. Let's follow Tim_C's lead. This type post is counterproductive on this site. It belongs on a physics post with Earl Weaver who I'm sure would be interested and love to hear all about it before he comes out of retirement or passes on to managerial heaven.

Actually there was a time a couple of years ago when this was a fun discussion during the off season. But for some reason the discussion turned to the dark side. And when put into a context that the myth applies to umpiring baseball it's not an all together useless exercise.

Experts have time and time again proposed that the myth of a rising fastball has been perpetuated by real physics. By that I mean that what appears to some to be a rise in the pitch is actually a decline in it's trajectory that's less than the observer had anticipated. Tie that into proper tracking of pitches by the proper use of the eyes, and it does become of value to this forum.



Tim.

SAump Mon Jan 19, 2009 09:33pm

Did you see that pitch break?
 
Quote:

Originally Posted by BigUmp56 (Post 570296)
Actually there was a time a couple of years ago when this was a fun discussion during the off season. But for some reason the discussion turned to the dark side. And when put into a context that the myth applies to umpiring baseball it's not an all together useless exercise.

Experts have time and time again proposed that the myth of a rising fastball has been perpetuated by real physics. By that I mean that what appears to some to be a rise in the pitch is actually a decline in it's trajectory that's less than the observer had anticipated. Tie that into proper tracking of pitches by the proper use of the eyes, and it does become of value to this forum.

Tim.

I was afraid this thread had spun out of control.
Thanks for bringing the topic back down to earth.

MrUmpire Mon Jan 19, 2009 09:47pm

Quote:

Originally Posted by BigUmp56 (Post 570296)

Experts have time and time again proposed that the myth of a rising fastball has been perpetuated by real physics. By that I mean that what appears to some to be a rise in the pitch is actually a decline in it's trajectory that's less than the observer had anticipated. Tie that into proper tracking of pitches by the proper use of the eyes, and it does become of value to this forum.



Tim.

No, experts proposed that that myth was perpetuated by the optical illusion you discussed, not real phyiscs.

The true facts have beed discussed ad nauseum and and continued interest is found primarily in those who enjoy whipping deceased equines.

tip184 Mon Jan 19, 2009 09:53pm

Quote:

Originally Posted by Tim C (Post 570093)
Oh cripes, now SA has another uniformed follower.

Mate, over the last 10 years this site (and others) have proven time-and-time-again that a baseball thrown overhand CANNOT rise.

And trust me (unless your an ex-major leage umpire that worked in season games) I have called a higher caliber of baseball than you my friend.

I hope no one else wastes their time answering yet somone who lives in the "mythical land" of the rising fastball.

~Sigh~

Maybe you didn't work enough AAA games to see a rising fastball. One or two games doesn't cut it if you don't have an overhand power pitcher who can throw mid 90's. Or maybe you aren't tracking the ball properly.

bobbybanaduck Mon Jan 19, 2009 10:01pm

i've seen a rising fastball. it ended up above the break on the net.

BigUmp56 Mon Jan 19, 2009 10:02pm

Quote:

Originally Posted by MrUmpire (Post 570307)
No, experts proposed that that myth was perpetuated by the optical illusion you discussed, not real phyiscs.

The true facts have beed discussed ad nauseum and and continued interest is found primarily in those who enjoy whipping deceased equines.


I would guess that there are members of this forum now that weren't members during the time this was so heavily debated. If the topic bores you because you've heard it all before, perhaps it's time to afford others an opportunity to play around with the subject matter. You ain't the only one on the playground.


Tim.

SethPDX Mon Jan 19, 2009 10:37pm

Quote:

Originally Posted by LDUB (Post 570249)
I can seem to find the link to add someone to my ignore list. Has that feature been removed?

On the top bar of the page, click "User CP." You will see your profile. In the column on the left side of the screen, click "Edit Ignore List." Follow the instructions on that screen.

Quote:

Originally Posted by BigUmp56 (Post 570296)
Experts have time and time again proposed that the myth of a rising fastball has been perpetuated by real physics. By that I mean that what appears to some to be a rise in the pitch is actually a decline in it's trajectory that's less than the observer had anticipated. Tie that into proper tracking of pitches by the proper use of the eyes, and it does become of value to this forum.

Thanks for clarifying. That makes sense to me.

MrUmpire Mon Jan 19, 2009 10:37pm

Quote:

Originally Posted by BigUmp56 (Post 570316)
I would guess that there are members of this forum now that weren't members during the time this was so heavily debated. If the topic bores you because you've heard it all before, perhaps it's time to afford others an opportunity to play around with the subject matter. You ain't the only one on the playground.


Tim.

No, but I am, apparently, one of the vast majority with a brain.

I will agree with the moderator. The OP is crap.

waltjp Mon Jan 19, 2009 11:36pm

Quote:

Originally Posted by tip184 (Post 570313)
Maybe you didn't work enough AAA games to see a rising fastball. One or two games doesn't cut it if you don't have an overhand power pitcher who can throw mid 90's. Or maybe you aren't tracking the ball properly.

Are the insults necessary?

MrUmpire Tue Jan 20, 2009 12:06am

Quote:

Originally Posted by tip184 (Post 570313)
Maybe you didn't work enough AAA games to see a rising fastball.

Exactly how many games does one have to work to see something that doesn't happen?

_____________

Okay, BigUmp. Now there's two posters functioning with the same limitations. I guess bringing up this myth for the gazillionth time was worthwhile after all.

briancurtin Tue Jan 20, 2009 12:32am

Quote:

Originally Posted by LDUB (Post 570249)
I can seem to find the link to add someone to my ignore list. Has that feature been removed?

Go to "User CP" at the top, then "Edit Ignore List"

JugglingReferee Tue Jan 20, 2009 07:04am

Tons of links to disprove the myth
 
Quote:

Originally Posted by Emperor Ump (Post 570117)
Mythbusters busted the "rising baseball" myth in their baseball special a while back.

Quote:

Originally Posted by Tim C (Post 570132)
I saw the Myth Busters piece.

I saw it too. http://ca.youtube.com/watch?v=A1VClnk3l-k

Forgive the Wikipedia links.

http://en.wikipedia.org/wiki/MythBus...ising_Fastball :

Quote:

Myth statement: A fastball (pitched overhand) can lift itself higher into the air.
Status: Busted
http://en.wikipedia.org/wiki/Fastball#Rising_fastball :

Quote:

Such a pitch is known to be physically impossible, due to restrictions of gravity, conservation of momentum, and air density. It has been explained as an optical illusion.
http://www.popularmechanics.com/outd...81.html?page=2

http://www.sie.arizona.edu/sysengr/s...ngFastball.ppt

BigUmp56 Tue Jan 20, 2009 08:06am

Quote:

Originally Posted by MrUmpire (Post 570346)
Exactly how many games does one have to work to see something that doesn't happen?

_____________

Okay, BigUmp. Now there's two posters functioning with the same limitations. I guess bringing up this myth for the gazillionth time was worthwhile after all.

I'm glad you're able to see that.............


Tim.


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