What happens to your balls: a real poll

What happens when you try to bounce a phenolic ball off a hard surface?

  • It'll break

    Votes: 10 14.9%

  • It wil bounce like a baseball

    Votes: 30 44.8%

  • It will bounce like a superball

    Votes: 27 40.3%
  • Total voters
    67
  • Poll closed .
There wasn't an option for like a golf ball, so I chose superball. You really have to slam a baseball to get it to bounce as high as a pool ball.

One of the sports bars around here has hard floors and whenever anyone jumps a ball off the table it damn near bounces up onto the next table.
 
Atlatlien said:
There wasn't an option for like a golf ball, so I chose superball. You really have to slam a baseball to get it to bounce as high as a pool ball.

One of the sports bars around here has hard floors and whenever anyone jumps a ball off the table it damn near bounces up onto the next table.
Click to expand...

A golf ball will bounce more
 
pt109 said:
A golf ball will bounce more
Click to expand...

95084.jpg
 
Colonel said:
So taking advantage of dead time by playing didn't cross your mind before bouncing pool balls off the pavement? Oooooookayyyyy. On a side note try a red circle cue ball sometime, it's even livelier than the rest when given the bounce test.
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Oh, there was a lot of pool played, don-chu-worry-bout-dat.
 
would be very interesting

Sloppy Pockets said:
I'm real curious about that. The phone I'm getting is supposed to make super slo-mo videos (300 fps). I'm going to gather up various cue balls and record how high they bounce off my anvil when I drop them all from the same height. Should explain a lot about why they react the way they do.
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It would be very interesting to see how the various cue balls bounced. I don't practice with my measles ball because it rolls long. Never gave much thought as to if the composition of the cue balls has anything to do with how they roll after contact. Weight is certainly a factor but now I wonder if bounce is too?

Inquiring minds, that don't happen to have an anvil handy, want to know!

Hu
 
Atlatlien said:
95084.jpg
Click to expand...

I worked at a pro shop,for six years when I was a school kid.
We had a painted cement floor...
I could stand behind the counter and bounce a golf ball with back-spin to the floor in
front of the counter back into my hand.....
....try that with a pool ball.




It was a Titleist.......8
:)
 
I threw one against a brick wall from about 25 feet away once...

It shattered and came back at me in about 1000 pieces.. Fun :)
 
pt109 said:
A golf ball will bounce more
Click to expand...
I'm actually not so sure about that. Provided that both balls hit the ground with the same velocity, the ground is perfectly hard (no deformation), and the pool ball doesn't shatter, I would actually guess the pool ball would bounce higher than the golf ball. I could be wrong.

Someone willing to do an experiment?
 
jsp said:
I'm actually not so sure about that. Provided that both balls hit the ground with the same velocity, the ground is perfectly hard (no deformation), and the pool ball doesn't shatter, I would actually guess the pool ball would bounce higher than the golf ball. I could be wrong.

Someone willing to do an experiment?
Click to expand...

I will try when I get home....I'll be surprised if the golf ball doesn't bounce higher...
...it has much more elasticity.

Speeds that would shatter any pool ball. ( 110 mph clubhead speed ) just makes a golfball
get up and go.
 
jsp said:
I'm actually not so sure about that. Provided that both balls hit the ground with the same velocity, the ground is perfectly hard (no deformation), and the pool ball doesn't shatter, I would actually guess the pool ball would bounce higher than the golf ball. I could be wrong.

Someone willing to do an experiment?
Click to expand...

I just called a buddy who owns a pool hall....he's a golf freak.
He dropped a pool ball from counter height (42 inches)
....to a smooth hard tile glued to a cement base.

...the pool ball bounced to about knee level.

....the golf ball bounced about five inches higher.
 
pt109 said:
I just called a buddy who owns a pool hall....he's a golf freak.
He dropped a pool ball from counter height (42 inches)
....to a smooth hard tile glued to a cement base.

...the pool ball bounced to about knee level.

....the golf ball bounced about five inches higher.
Click to expand...
Can't really argue against empirical evidence. Thanks.
 
pt109 said:
Speeds that would shatter any pool ball. ( 110 mph clubhead speed ) just makes a golfball
get up and go.
Click to expand...
But a pool ball shattering at a lower velocity compared to a golf ball doesn't give any indication of the relative elasticities of the two balls for velocities below the breaking point of a pool ball.

For example, a ping pong ball is pretty darn elastic under small velocities (probably even more so than a golf ball?). But the ping pong ball will deform/break at much lower velocities compared to to the golf ball.
 
this I wanna see tested

pt109 said:
Speeds that would shatter any pool ball. ( 110 mph clubhead speed ) just makes a golfball
get up and go.
Click to expand...


I think this is BS! The only proof I will accept is video proof, I wanna see somebody hit a pool ball off a tee with a golf club moving 110 at the club head.

What I'm really thinking, this could be cartoon funny, also thinking even if you find a fool to try it they will only do it once so set up two or three cameras for the best angles. Youtube here we come!

Hu

PS: I have hit them with a baseball bat when I was a kid. Pool balls and golf balls go into orbit!
 
pt109 said:
I just called a buddy who owns a pool hall....he's a golf freak.
He dropped a pool ball from counter height (42 inches)
....to a smooth hard tile glued to a cement base.

...the pool ball bounced to about knee level.

....the golf ball bounced about five inches higher.
Click to expand...

That's an outright lie: I find it highly doubtful that you have a 'buddy'.

The rest I can believe.
 
Post

Bounce a phenolic pool ball on concrete and it will bounce like a bouncy ball.



Rob.M
 
jsp said:
Just found this while surfing around...

http://hypertextbook.com/facts/2006/restitution.shtml

According to that experimental data, the coefficient of restitution of a range golf ball was 0.858 and the c.o.r. of a billiard ball was 0.804. So it appears I'm wrong.
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I don't know the physics, but I think it has to do with what is hitting what as well. A steel ball bearing has low COR in that high school experiment, but guys have been using them to test the rebound of anvil faces for a while now.


http://www.anvilfire.com/article.php?bodyName=/FAQs/anvil-5.htm


Seems a ball bearing only rebounds about 35% when it's dropped on an old colonial style anvil, but the same bearing rebounds to 93% on a modern Peddinghaus anvil with an incredibly hard steel face.

My anvil is a near-mint Hay-Budden, and a ball bearing rebounds about 85% of it's dropped height according to the Anvilfire site. This quality makes it a joy to use because you don't have to use as much energy to raise the hammer each stroke. If I ever sell all my tools but one, my Hay-Budden will likely still be sitting on it's stump in the workshop.

Mass has a lot to do with it as well. That's why everybody wants to find a 500# anvil if they are using heavy hammers on thick stock.

With pool balls I thought the COR was up around 96% or higher for ball-to-ball collisions. Hopefully Dr. Dave will show up and straighten us all out.
 
Sloppy Pockets said:
I don't know the physics, but I think it has to do with what is hitting what as well. A steel ball bearing has low COR in that high school experiment, but guys have been using them to test the rebound of anvil faces for a while now.


http://www.anvilfire.com/article.php?bodyName=/FAQs/anvil-5.htm


Seems a ball bearing only rebounds about 35% when it's dropped on an old colonial style anvil, but the same bearing rebounds to 93% on a modern Peddinghaus anvil with an incredibly hard steel face.

My anvil is a near-mint Hay-Budden, and a ball bearing rebounds about 85% of it's dropped height according to the Anvilfire site. This quality makes it a joy to use because you don't have to use as much energy to raise the hammer each stroke. If I ever sell all my tools but one, my Hay-Budden will likely still be sitting on it's stump in the workshop.

Mass has a lot to do with it as well. That's why everybody wants to find a 500# anvil if they are using heavy hammers on thick stock.

With pool balls I thought the COR was up around 96% or higher for ball-to-ball collisions. Hopefully Dr. Dave will show up and straighten us all out.
Click to expand...
Great info.

Yes, the steel ball bearing data made me very suspicious about their testing methodology. A steel ball bearing is as close to an idealized hard sphere in physics as one can get in the real world, so I was surprised at the low 0.597 c.o.r. that website gave. So it seems the surface at which they were bouncing the balls was simply not 'hard' enough.

So I wonder if they used a "Peddinghaus 165# Forged Steel Anvil", would the pool ball beat the golf ball?
 
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