Experience or science?

Which do you trust most?

  • Experience

    Votes: 134 72.0%
  • Science

    Votes: 52 28.0%

  • Total voters
    186

thintowin

thin2win
Silver Member
unfair question. who is going to filter the "experience" from the science? who is going to keep "science" from the experience that each of us accumulates in life's day-to-day existence? it;s like posing the question: can a scientist be a man of faith or must he denounce religion? Must a priest refer to science as hocus pocus or because there are conflicts between his religion and science must he denounce science? there is plenty of room in this world for free thinkers and religous thought to not only co-exist but flourish. this is only my lowly opine.
 

catpool9

"Rack Um"/ Rusty Lock
Silver Member
It depends. There have been lots of theories that turned out to be false, usually from incorrect assumptions. One example that keeps coming up for pool is that "physics says" that the nose of the cushion ought to be at exactly 70% of the height of the cue ball. This has a grain of truth from physics -- if a cue stick strikes the cue ball at 70% of its height the cue ball will immediately start rolling without slipping. The pitifully wrong assumptions that go into this hypothesis are pretty obvious, but the major one is that a stick hitting a stationary ball is just like a rolling ball hitting a cushion. There is also the assumption that cushions don't deform much.

Of course a simple experiment shows immediately that this "Theory of 70%" for cushions is totally bogus and you get screwy angles and very poor rebound if you actually move the cushion to be that high. Most cushions are more like 62% of the height of the ball.

The problem with the "Wrist Flip Theory" is that unlike the "Theory of 70%" it is more or less impossible to test. About all you can be sure of is that the flipper believes strongly that this technique is valuable. Even if you point out all the champions that don't use it but still get amazing spin, the question remains: how much better would they spin the ball if only they could learn to flip their wrists?

On the other hand, top players have good sensitivity to how things should work and so can detect when things aren't going quite right. Their observations can be very useful for figuring out why the accepted theories are not complete or correct. For example, Joe Davis pointed out long before many accepted it that contact-induced throw was important to most shots. Joe saw the shots clearly enough that he could notice the effect. Some players still deny CIT, evidently because they can't observe as well as Joe even though Joe had only one working eye.

Given Joe's input, the open-minded physics guy (of the 1940s) would soon have had an experiment set up to measure the effect. And of course Joe was right. In that particular case it would be easy to conduct the experiment and to work out the theory which is pretty simple once you know about the observed phenomenon.

A really bright physics guy would have figured out the possibility of CIT without Joe's input and would have measured the relevant material property (ball-to-ball coefficient of friction) prior to any report from the field. He might even have found out during the experiment that the friction varies with the speed and force of the contact although simple theory says it's constant.



Nice write up Bob, I understand it completely, I also like to use the science of pool along with the spinning english that one can master and control and make it all work together!


David Harcrow
 

JoeW

AzB Silver Member
Silver Member
Gosh... .

My intent was not to be insulting. I think the poll contributes to more confusion than is needed.

Science is used to organize and think about experience.

Those who make statements implying that "science" has or has not proven some point also contribute to the general confusion about the scientific method which is not an answer but one of several ways to find tentative answers based on experience.
 

Bob Jewett

AZB Osmium Member
Staff member
Gold Member
Silver Member
Is it actually the friction between materials that changes with speed!? I wouldn't think it's constant, but intuitively I would think the effects would be negligible. ...
There are, I am told, lots of papers on this subject. For the specific case of pool Wayland Marlow measured the variation and got a variation with speed of slipping and/or force of over a factor of 10 (if I remember correctly) in the coefficient of friction. Since it is usually assumed to be a constant, that's a major adjustment in the physics model. Players a long time ago had observed the effect which is summarized by "shoot hard and the combo will throw less."
 

nrhoades

AzB Silver Member
Silver Member
Science is used to organize and think about experience.

That's a succinct and appropriate statement. Maybe I should ask the even more fundemental question of "why do people NEED a right and wrong in the first place?" Is my cartoon close to the truth in that it is a learned behavior? Or is it human nature in itself? What about feral children?
 

Bob Jewett

AZB Osmium Member
Staff member
Gold Member
Silver Member
" Experience is the best teacher. "

Wisdom keeps you from having bad experiences but you gain wisdom by having them.

A man who carries a cat by the tail learns something he can learn in no other way.
-- Mark Twain
 

robsnotes4u

AzB Silver Member
Silver Member
Remember everything science experimentally speaks of is in a "vacuum". Unfortunately we live in the real world, therefore we need our experiences to guide us through the deviations.

Sent from my DROID BIONIC using Tapatalk
 

Masayoshi

Fusenshou no Masa
Silver Member
Experience, by far! The science guys say CTE doesn't/can't work. My experience shows me that it can/does. Lots of things look good on paper but when it comes to actual execution don't work too well.

Exactly which science guy(s) said that CTE can't/doesn't work?
 

Pushout

AzB Silver Member
Silver Member
Exactly which science guy(s) said that CTE can't/doesn't work?

I don't remember the name of the main one as he seldom posts here anymore. Most of those who said it didn't work were those who had to be shown why it would. As in, if you can't show me why it works, it can't.
 

Masayoshi

Fusenshou no Masa
Silver Member
I don't remember the name of the main one as he seldom posts here anymore. Most of those who said it didn't work were those who had to be shown why it would. As in, if you can't show me why it works, it can't.

Normally I would inquire further because I think you are quite wrong in your original statement, but considering this is not a CTE thread and I don't think anybody wants it to become one, I will leave it alone for now.

edit: On topic, I trust both. Science can be used to solve anything provided you go in far enough detail. In real life though, there is much room in between what is physically possible on the pool table and what is currently scientifically explainable (the biggest gap I believe is in the area of stroke and body mechanics). A lot of that gap is due to pool being a human game, we cannot execute perfectly every time, therefore we cannot get a perfectly scientific solution for everything that happens. If we could pool would not be interesting at all.

If someone shows me something that works, but I can't figure out why it works, I will use it anyways because I want the best possible advantage in a match.
 
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Pushout

AzB Silver Member
Silver Member
I'm sorry I used the CTE example but it was the first thing that came to mind.
I don't want to dredge all that up again. I think I've said all I need to say about it.
 

JoeW

AzB Silver Member
Silver Member
That's a succinct and appropriate statement. Maybe I should ask the even more fundemental question of "why do people NEED a right and wrong in the first place?" Is my cartoon close to the truth in that it is a learned behavior? Or is it human nature in itself? What about feral children?

From the human nature perspective I think that humans are data reduction machines that search for the simplest solution for predicting future events.

From a scientific perspective I think there are no rights or wrongs, only what works.

But perhaps we travel too far a field for this thread.
.
 

lfigueroa

AzB Silver Member
Silver Member
People don't always agree about things on AZB, much less in the real world.

For example:

A seasoned pro might say, "You can get more spin with a little wrist flip." His proof is by showing you a shot. A science guy might say, "You don't need the wrist flip. The same thing can be done with a straight wrist." His proof is a bunch of diagrams and equations.

So...in general, who are you more likely to believe?


http://goo.gl/DFtHB

Lou Figueroa
 
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