I've never thought about inhaling or exhaling during my stroke.It’s working! Almost as well as asking whether they breathe in or out on the shot stroke…
pj
chgo
Are these the thoughts that keep you up at night?
I've never thought about inhaling or exhaling during my stroke.It’s working! Almost as well as asking whether they breathe in or out on the shot stroke…
pj
chgo
You never used to....I've never thought about inhaling or exhaling during my stroke.
If only it helped him in the Mosconi Cup. His spin to speed ratio must've been way off on those couple 9 balls.I can’t find it. But in some video somewhere, probably buried in a podcast, Tyler Styler talks about spin to speed ratio and how trying to increase it has helped him make pockets bigger. So there is real world discussion about this subject.
RPF definitely increases linearly with tip offset. The math and physics is here:
TP A.12 – The relationship between cue ball spin and cue tip offset
SRF = omega / (v / R) = (5/2) * (b/R)
where SRF is the spin-rate factor (spin-to-speed ratio), omega is the angular speed in radians/sec, v is the ball speed, R is the ball radius, and b is the tip offset from center.
Speed is related to distance (d) and time (t):
v = d / tSo:
SRF = (omega * t) * R / dThe first term is related to revolutions (rev) according to:
So:
(omega * t) = rev * (2 * pi) [there are 2*pi radians per revolution]
SRF = (2 * pi * rev) * R / dSo revolutions per foot (RPF) is:
RPF = rev / d = SRF / (2 * pi * R)with d and R measured in feet.
The ball radius (in feet) is:
R = (2.25" / 2) * (1ft / 12") = 1.125/12 feet
For an assumed maximum spin at the standard miscue limit of 0.5*R,
which gives:
SPF = (5/2) * (b/R) = (2.5) * (0.5) = 1.25
RPF = 1.25 / (2 * pi * 1.125/12) = 2.1 rev/ftIf you roll a ball (SRF = 1) and see how many revolutions it makes in one foot, you would observe:
RPF = 1 / (2 * pi * R) = 1.7 rev/ft
Well, that sure cleared it up.
I think everything you can learn about the game adds to your skills, even if you don't notice it. For instance, a more familiar way of expressing the amount of spin on the CB might make it easier and more accurate to visualize/predict the effects, even subconsciously.After I said this, I exported 10 minutes of DigiBall data and calculated that my SPF was an average of 1.326, with a standard deviation of 0.506.
I think this is useless, lol.
It would only have meaning if you could compare it to, say Jayson Shaw, running 500+ balls, and maybe noting you aren't using as much spin as he is. Maybe using less could help, for 14.1.
It would have to be very specific for it to matter.
If retaining useless information like this actually equated to improved ability/skill, then we'd all be 800 Fargo.I think everything you can learn about the game adds to your skills, even if you don't notice it. For instance, a more familiar way of expressing the amount of spin on the CB might make it easier and more accurate to visualize/predict the effects, even subconsciously.
And just to be clear about "analysis paralysis"... of course nobody suggests doing anything more than the simplest of estimations while playing - details like this increase/improve the base knowledge on which your "intuitive" game is built and grows.
pj
chgo
Except for you, apparently.If retaining useless information like this actually equated to improved ability/skill, then we'd all be 800 Fargo.
Of course - but I'll do it with as much knowledge and understanding as possible.Just hit a million balls bro.
Sure - even if you learn it yourself.I do think it can help instructors when teaching players who are interested in these kind of things and showing how physics apply to real life scenarios on the table.
And knowing about spin to speed helps your understanding of and ability to produce those answers accurately.As a sole player, I am never thinking about spin to speed ratio when I'm about to shoot or down on a shot, I think of:
What aim do I need?
What spin do I need?
What speed do I need?
Yep, knowledge can improve your ability to quickly/accurately determine the right Angle/Spot/Speed.
One place where it might be interesting is on the one-pocket break shot. I try to achieve a high rate of spin (max outside) and very little speed to get the ball into the pack, off the rail, and back to that second diamond sitting on the rail....After I said this, I exported 10 minutes of DigiBall data and calculated that my SPF was an average of 1.326, with a standard deviation of 0.506.
I think this is useless, lol.
It would only have meaning if you could compare it to, say Jayson Shaw, running 500+ balls, and maybe noting you aren't using as much spin as he is. Maybe using less could help, for 14.1.
It would have to be very specific for it to matter.
Everything in Moderation!I have some advice:
Don't read it.
Play more pool.
I do enjoy some good knowledge, physics and math were my favorite subjects in school.But of course, if knowledge isn't your thing... maybe 2 million balls?
pj
chgo
... if knowledge isn't your thing... maybe 2 million balls?
You mean like this?I don't understand why you have to resort to passive-aggressive remarks when we're having civil discourse.
Yeah, I see how that could be annoying. Let's not....useless information like this...
YOU literally said in your last sentence of the first post that you're not sure if your information might be useless or not.You mean like this?
Yeah, I see how that could be annoying. Let's not.
pj
chgo
Happy now?I'm not sure how this might be useful info, just wondering and babbling as usual...
Hmmmm. Very interestingOne place where it might be interesting is on the one-pocket break shot. I try to achieve a high rate of spin (max outside) and very little speed to get the ball into the pack, off the rail, and back to that second diamond sitting on the rail....
Outside spin on One Pocket break? I did not know that.One place where it might be interesting is on the one-pocket break shot. I try to achieve a high rate of spin (max outside) and very little speed to get the ball into the pack, off the rail, and back to that second diamond sitting on the rail....