1mm Jumps are NOT legal, I'm convinced
- Thread starter ericyow
- Start date
Skyman: I love it - I didn't know about that software. You're right - at 85deg launch angle, the shot should go about 2.85 times the distance. at 1mm distance, 80 deg would do it, which isn't nearly as high. This is all THEORY of course!
I never said this was possible in real life, just a response to someone wondering what the physics proof would say.
Jon
ps. I'm "physicist" with common sense enough to know this is probably not possible without hitting the shaft in real life!
I never said this was possible in real life, just a response to someone wondering what the physics proof would say.
Jon
ps. I'm "physicist" with common sense enough to know this is probably not possible without hitting the shaft in real life!
I still want to see HSV of the shot. Somebody ask Larry Nevel if "he" thinks it's legal. I'm with cuetrip, until I'm proven wrong, it's illegal. Legality notwithstanding, it's still a really cool shot.
One mentioned using the rail to get the ball up. I don't know if Larry did or not, but I doubt it. One thing I do in my shows is freeze the cue ball to an object ball. Then, there is a blocker ball 1mm away at 90 degrees to the right. With a shaft jump, I find it more manageable to jump "off" the frozen ball and over the blocker. I use it to make the frozen ball and get what would otherwise be "impossible shape".
On a side note, Mark Dimick's invention, the Dr. Popper jump cue, is said to be able to make 1mm jumps legally because the cue is so light and flexible. I've use a friend's and done a chalk's width like it was cake, but haven't tried closer yet.
-yow!
One mentioned using the rail to get the ball up. I don't know if Larry did or not, but I doubt it. One thing I do in my shows is freeze the cue ball to an object ball. Then, there is a blocker ball 1mm away at 90 degrees to the right. With a shaft jump, I find it more manageable to jump "off" the frozen ball and over the blocker. I use it to make the frozen ball and get what would otherwise be "impossible shape".
On a side note, Mark Dimick's invention, the Dr. Popper jump cue, is said to be able to make 1mm jumps legally because the cue is so light and flexible. I've use a friend's and done a chalk's width like it was cake, but haven't tried closer yet.
-yow!
can someone put a clean cue ball in a pitching machine and see if the surface is rough enough to get it to curve (it may be, especially with the large amount of spin these shots put on the ball)....that would certainly complicate things....
I just don't think his will be any different then yours.As mentioned the ball would have to go very high to carry the OB....So high in fact that after landing it would more less just stop or barely roll on the other side.
I don't believe this shot can be made without he shaft moving it forward as your video shows.Thanks for taking the time to put that together.
All that said...its a cool azz shot.Wish I could do it.
I don't believe this shot can be made without he shaft moving it forward as your video shows.Thanks for taking the time to put that together.
All that said...its a cool azz shot.Wish I could do it.
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1mm jumper
I will agree with that. Excellent job.
psykoyow said:
I will agree with that. Excellent job.
The CheeZe
New member
jcrack_corn said:
This is a good idea, but the cue ball will never curve because of its completley smooth surface. For example the laces on a baseball make a baseball curve when spun. (a buncha aerodynamic stuff) I just know this because i'm a pitcher.
Edit: Idea-- What if you had a curved cue stick shaft so the ball wouldn't hit the stick when jumping?
Just something google brought up.It made no mention or the laces and I think rightly so.....I think the laces help the pitcher induce spin (traction on release) but the laces themselves don't help or create spin in flight.Ping pong ball have no laces for instance...but of course they are light as hell so the turn is large and easy to see is a short space.
I suppose the laces may offer more "air traction" and hence a higher differential pressure which means more turn...
Ah screw it...now I'm disagreeing with my self lol.
Ok...been rethinking this one...
Can someone take a baseball to the poolhall and try this shot?
If it leaves a hole in the wall and goes screaming through the parking lot then we are on to something.
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i think i addressed that in my post...i'm fairly certain you can get a cueball to curve because its surface is not smooth at all.....
A cue stick (or baseball machine) spins a cueball MUCH faster than a pitcher can spin a curveball, therefore the relative airspeed over the surface of the ball is much greater so you dont have to "see" the imperfections (laces)....the surface of a cueball looks like the himalayas at 1000x
A cue stick (or baseball machine) spins a cueball MUCH faster than a pitcher can spin a curveball, therefore the relative airspeed over the surface of the ball is much greater so you dont have to "see" the imperfections (laces)....the surface of a cueball looks like the himalayas at 1000x
The CheeZe said:
Science in action
I wrote a little program to find the minimum velocity needed to clear a ball for a bunch of angles. Each line on the graph is for a set separation between the two balls.
Things go off the chart when you basically have to pound the ball to beat gravity.
The velocity vs. angle shows the minimum velocity required to clear the ball. The 1mm solutions are up past 80 degrees in brown.
The height vs. angle shows the maximum height of the flight of the ball for that particular minium velocity.
The distance vs angle shows how far the ball goes past the obj ball.
Neat problem and I got to put my computational physics to use
. Seems like such a simple problem but it's not. I'd be curious to see how these numbers line up with high speed video.
I wrote a little program to find the minimum velocity needed to clear a ball for a bunch of angles. Each line on the graph is for a set separation between the two balls.
Things go off the chart when you basically have to pound the ball to beat gravity.
The velocity vs. angle shows the minimum velocity required to clear the ball. The 1mm solutions are up past 80 degrees in brown.
The height vs. angle shows the maximum height of the flight of the ball for that particular minium velocity.
The distance vs angle shows how far the ball goes past the obj ball.
Neat problem and I got to put my computational physics to use
. Seems like such a simple problem but it's not. I'd be curious to see how these numbers line up with high speed video.Attachments
psykoyow said:
I asked Larry and he told me that he thinks the shot is legal (except when he did it with a shaft only) However I am still convinced (after seeing your video Eric) that it is not. this can only be solved with some high speed video footage!
