Measle Ball Bigger???

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onepocketchump

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I have a question. Is the Pro Cup ball by Aramith larger than normal pool balls. I have compared several with other Aramith balls and I think it is a 16th or a 32cnd of an inch larger. Besides that is just looks bigger.

I find this ball harder to play with. Anyone else hve these observations?

John
 
onepocketchump said:
I have a question. Is the Pro Cup ball by Aramith larger than normal pool balls. I have compared several with other Aramith balls and I think it is a 16th or a 32cnd of an inch larger. Besides that is just looks bigger.

I find this ball harder to play with. Anyone else hve these observations?

John
Click to expand...

I swear it's heavier and rolls and rolls more than a normal cue ball...but I have no proof of that. The first time I shot with one, I didn't care for it, but by the time a few games had passed, I really prefer it now. I do think it has more weight or something...rolls like a mofo.

Shorty
 
I think it makes the game easier because you get the feel of cue ball position quicker. It does look and feel bigger but I'm not sure if it is.
 
If the measle ball is either bigger or heavier than the normal ball, then it would have more roll, according to the moment of inertia equation for a sphere: (2/5)MR^2, where M is mass and R is radius.

Below is a picture of a simple way to test if the measle ball is either bigger or heavier. The 1 and 5 balls would be the different cue balls, and the 3 and 6 should be frozen directly behind the 2 CBs in such a way that the two lines going through the frozen balls are parallel. The 8 would then be frozen to the 3 and 6 such that the middle of the 8 is at the midpoint of the two parallel lines (it would be automatically if the two lines are parallel). Then you'd simply hit another ball directly into the 8 and see which CB rolls further.

If you have your setup perfectly symmetric and the CBs masses and sizes are identical, then both CBs would travel the same distance. However, if one rolls further than the other, then that one would either be heavier or bigger, or both.
 

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on second thought...

jsp said:
However, if one rolls further than the other, then that one would either be heavier or bigger, or both.
Click to expand...
Actually, i'm wrong with this statement. If both have the same mass but one CB is bigger, then yes the statement would be correct. But if they have the same size but one is heavier, then the heavier one wouldn't roll further, but roll shorter.

The heavier one would roll further if they had the same angular momentum, or if they were rolling at the same speed, to begin with. My experiment doesn't guarantee this if one CB is heavier.
 
onepocketchump said:
I have a question. Is the Pro Cup ball by Aramith larger than normal pool balls. I have compared several with other Aramith balls and I think it is a 16th or a 32cnd of an inch larger. Besides that is just looks bigger.

I find this ball harder to play with. Anyone else hve these observations?

John
Click to expand...

I know it's bigger than my slightly worn out set of centenials and it was driving me nuts because I believe (just a guess) that having a slightly larger cueball can cause more SKIDS. I'm trapped at home so I figured I would put some time in on my straight pool game (trying to run 200) ran 105 yesterday. Anyway since I'm filming this I thought it would be better to film with the measle ball so people could see what I was putting on the ball.
BUT ALL THE FREAKIN SKIDS were sending me batty! I switched to a smaller still Aramith red and am having more success and definitely less skids.
One more thing on the skids that I think hasn't been mentioned but might be a possibility is not only chalk on the balls but the chalk on the table. Yesterday I had a real easy shot in the side, a hanging key ball with a perfect break ball and I was 3 or 4 racks in when the sum ***** skidded. There was a patch of blue in the area which got me thinking that possible friction from underneath the ball could also contribute to the skid effect?
Now I'm polishing and vacuuming like a nut case!
And now only using the measle ball to fill in the 15th spot when racking!
 
My .02 cents

The Pool rooms around here tried the measle ball for awhile,
and my observation as compared to the Arimith 'logo' ball,
is that the measle ball seems slightly larger, and has just a
tad of a sluggish feel when applying english. To me, the logo
ball reacts better.
 
If you want to instantly know if it is bigger...

onepocketchump said:
I have a question. Is the Pro Cup ball by Aramith larger than normal pool balls. I have compared several with other Aramith balls and I think it is a 16th or a 32cnd of an inch larger. Besides that is just looks bigger.
Click to expand...
If you want to instantly know if it is bigger put the cue ball between 2 object balls along a rail. Place the rack, or a straight edge along the top of all three balls. If the rack teetertotters, the cue ball is bigger.
If not, press down on the rack and try to roll all three balls away from the rail.
If the cueball stays behind it is smaller. If all three roll away, they are the same size.
Doug
 
jsp said:
Actually, i'm wrong with this statement. If both have the same mass but one CB is bigger, then yes the statement would be correct. But if they have the same size but one is heavier, then the heavier one wouldn't roll further, but roll shorter.

The heavier one would roll further if they had the same angular momentum, or if they were rolling at the same speed, to begin with. My experiment doesn't guarantee this if one CB is heavier.
Click to expand...
I've never quite figured this one out.
Heavier, but same size, rolls shorter?

Then the red circle Aramith is lighter, not heavier than the object balls if they are the same size?
 
balls wear down a lot faster than you might think. carom cafe and master billiards, both in queens, replace their carom balls at least two times a year, usually three. the new sets of balls are always noticably bigger (and heavier) than the old worn down sets.

while i don't know for sure whether or not the super aramith pro-cup pool balls (spotted cue ball set) are made bigger than the super aramith pro (sans "cup") pool balls are made, it very well may be that the balls you had before are old and worn, and the pro-cup balls are bigger simply because they are new.

by the way, there's another way you can tell when the aramith balls get old and worn: the white ball becomes much more white; a new white ball is a duller white.

william
 
DougT said:
I've never quite figured this one out.
Heavier, but same size, rolls shorter?
Click to expand...
For my experiment, the heavier ball will roll shorter for two reasons. Given that the impulse forces for both CBs are the same, the CB that is heavier will naturally go a shorter distance simply because it has more mass. Just think of trying to do this experiment with a CB made of lead.

The second reason the heavier ball would roll shorter (in my experiment) is because the magnitude of the impulse forces would no longer be symmetric if the CB masses are different. There will actually be a greater impulse of force exerted on the lighter CB. The heavier CB would hold its ground more, and thus the 8 ball would deflect more to the direction of the lighter CB giving the lighter CB more force than the heavier CB.

However, if both balls are rolling at the same speed to start out with, then the heavier ball would roll further than smaller ball, because the heavier ball has a greater moment of intertia (and thus a greater angular momentum for the same speed) than the smaller ball.
 
I think an imoprtant question would be, are the object balls that are packaged with the measle ball the same size, or are they smaller than the measle ball. Another thing to consider is, different diameter balls react differently when rebounding off the rails.

Tracy
 
jSP:

To make your experiment work perfectly, don't you have to put spit between the cueballs and the balls they are frozen against to take any friction out of the equation? Or at least use two or three balls lined up behind each cueball...
 
Put each ball in a box. Then go to the Post Office and mail the two boxes to me. The one that costs more to mail weighs more.
 
BillYards said:
jSP:

To make your experiment work perfectly, don't you have to put spit between the cueballs and the balls they are frozen against to take any friction out of the equation? Or at least use two or three balls lined up behind each cueball...
Click to expand...
Yeah...you're probably correct, since the CBs would be thrown quite a bit, and it might affect measurements if some balls are dirtier than the others. Hehe...I just thought of the experiment, so I haven't really tried it out myself. It was just a thought. I'd probably use spit instead of stacking more balls behind the CBs.

Assuming that all the balls are equally dirty and have the same amount of friction, the experiment would still be valid, although the CBs might deviate from their parallel lines. The power of symmetry.
 
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