Here is a video that describes why a shot that has the object ball close to the cueball cannot be made. Distance is everything.
http://www.youtube.com/watch?v=zAsB0sOz-bU
http://www.youtube.com/watch?v=zAsB0sOz-bU
Billiard Architect: Finding the impossible shot
- Thread starter Billiard Architect
- Start date
Enlighten me... Not sure I follow.
Why are you throwing something like depth perception into something that is actually 2 dimensional? Yes it is a half ball hit from 12 inches on up. As you place the two balls closer together along the same line that is generated by drawing a straight line through both centers of the object ball and the cueball your overlap changes. Still 2 dimensional, 3rd dimensional depth perception does not play a part. Ball to ball aiming or overlap has nothing to do with ghost ball. Yes you can visualize the overlap by guessing where the object ball would be if you visualized a ghost ball. But overlap does not lie, no ghostball to guess over.
April fools day seems a little far off for this video.
But, with any half ball hit, as the QB travels towards the object ball it will come within four inches, suddenly the spheres will get in the way of one another and make it impossible.
Forget my first statement, this actually explains a lot.
But, with any half ball hit, as the QB travels towards the object ball it will come within four inches, suddenly the spheres will get in the way of one another and make it impossible.
Forget my first statement, this actually explains a lot.
I don't mean to throw a monkey wrench into the premise of the video but the placement of the object ball was adjusted incorrectly several times as to discredit the value of the information.
I would suggest revising the approach using something that would allow the demonstrator to accurately replace the object ball and cue ball positions relative to the line of approach.
I would suggest revising the approach using something that would allow the demonstrator to accurately replace the object ball and cue ball positions relative to the line of approach.
I'm not sure of this is serious or not but obviously the setup is incorrect as is all premises established after.... at least in the first minute or so I watched. Of course I didn't see reason to watch after that point.
Or at least it should be obvious ?
If I missed the joke then please disregard my post.
Or at least it should be obvious ?
If I missed the joke then please disregard my post.
You're getting into dangerous territory here, Johnny.
This resembles Zeno's paradoxes....where he attempts to reason by
a combination of math and philosophy that an arrow can never reach
its target and Achilles can't beat a @#$% turtle in a foot race.
Don't ignore some physics here also...that a 'dead' cue-ball, a free rolling
cue-ball, and an airborne cue-ball at high speed cut the ball differently.
...soooo...get your nose out of the text book, knock the damn ball in, and
get on with your game.
I say who cares... Learn how to make a ball by feel and contact points. Keep it simple. When you bring in all these new methods that works for others wont work for them. Therefore you have to take all that time wasted and throw it out the window!! Hence delaying your growth as a player.
So tired of the same crap over and over again. Learn to hit balls like the ghosts of this game. HAMB!!!!
So tired of the same crap over and over again. Learn to hit balls like the ghosts of this game. HAMB!!!!
I didn't quite understand what the video was trying to say.
For the shot to be the same cut, you have to move the CB along the line of centers formed by the CB and the GB. Then, no matter the placement of the cue ball on that line, the cut or "overlap" will be the same.
For the shot to be the same cut, you have to move the CB along the line of centers formed by the CB and the GB. Then, no matter the placement of the cue ball on that line, the cut or "overlap" will be the same.
April fools I hope? This is rubbish, and can be easily disproven. Let's take a simple example of the 1/2 ball hit:
Red ball is object ball, grey ball is where cueball makes contact. So where on the shot line do the balls "get in the way"? They don't, they are good all the way to the point of contact. Throw is an issue and can be compensated for, but the shot does not become impossible as they get closer. In the OP video the ball alignments are bad and confusing. The object ball (3 ball) is overlapping the aim line, and the cueball is moved to two places not centered on the aim line.
Red ball is object ball, grey ball is where cueball makes contact. So where on the shot line do the balls "get in the way"? They don't, they are good all the way to the point of contact. Throw is an issue and can be compensated for, but the shot does not become impossible as they get closer. In the OP video the ball alignments are bad and confusing. The object ball (3 ball) is overlapping the aim line, and the cueball is moved to two places not centered on the aim line.
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Using your graphic I will explain further.
Looking at the attached picture you will see that I have added a couple of lines and another cueball position.
1) the blue line represents the line between the object ball and the cueball centers.
2) There is a red line that represents the path of the cueball for a half ball hit for cueball position "A".
3) There is a black line that shows the desired path of the object ball. (from the original graphic)
4) I have placed an "A" at the cueball position at 14 inches for reference (estimated by the diamonds in the picture)
5) I have placed a new cueball position around 5 inches away from the object ball. I placed it on the same blue line drawn between the centers of the object ball and the original cueball "A"s position.
6) I placed a "B" by the cueball placed 5 inches away for reference.
7) I have drawn a yellow line to represent the new aim line for cueball "B"s position.
Now let me describe what I am showing here. The only difference between the cueball position "A" and position "B" is distance from the object ball. The angle that the blue center line vs desired object ball path has not changed. I have placed both cueball positions "A" and "B" on the same object ball center to cueball center line (blue line). I have not manipulated the object balls position or desired path in any way.
Do you notice a difference of the angle produced from the red Cueball "A" path and the blue center line (red vs blue lines) and the angle produced from the yellow Cueball "B" path and blue center line (Yellow vs blue lines) to execute the same angle cut? It is drastically increased, around 25 degrees, and the ball to ball alignment has changed from a half ball overlap to a quarter ball overlap. Bob Jewett could explain the calculations a lot better than I can but the picture does not lie.
When I move the balls closer together I am not moving the cueball along the predicted cueball path. I am moving the cueball closer to the object ball along the same object ball center to cueball center line (blue line).
This is what the Billiard Architect is able to calculate is distance vs desired angle. Not the angle of the predicted cueball path but the actual ball to ball overlap to make the shot from a given distance along the same line between the cueball and object ball centers.
JV-Man I am beginning to think that a fart app would have been easier.
Looking at the attached picture you will see that I have added a couple of lines and another cueball position.
1) the blue line represents the line between the object ball and the cueball centers.
2) There is a red line that represents the path of the cueball for a half ball hit for cueball position "A".
3) There is a black line that shows the desired path of the object ball. (from the original graphic)
4) I have placed an "A" at the cueball position at 14 inches for reference (estimated by the diamonds in the picture)
5) I have placed a new cueball position around 5 inches away from the object ball. I placed it on the same blue line drawn between the centers of the object ball and the original cueball "A"s position.
6) I placed a "B" by the cueball placed 5 inches away for reference.
7) I have drawn a yellow line to represent the new aim line for cueball "B"s position.
Now let me describe what I am showing here. The only difference between the cueball position "A" and position "B" is distance from the object ball. The angle that the blue center line vs desired object ball path has not changed. I have placed both cueball positions "A" and "B" on the same object ball center to cueball center line (blue line). I have not manipulated the object balls position or desired path in any way.
Do you notice a difference of the angle produced from the red Cueball "A" path and the blue center line (red vs blue lines) and the angle produced from the yellow Cueball "B" path and blue center line (Yellow vs blue lines) to execute the same angle cut? It is drastically increased, around 25 degrees, and the ball to ball alignment has changed from a half ball overlap to a quarter ball overlap. Bob Jewett could explain the calculations a lot better than I can but the picture does not lie.
When I move the balls closer together I am not moving the cueball along the predicted cueball path. I am moving the cueball closer to the object ball along the same object ball center to cueball center line (blue line).
This is what the Billiard Architect is able to calculate is distance vs desired angle. Not the angle of the predicted cueball path but the actual ball to ball overlap to make the shot from a given distance along the same line between the cueball and object ball centers.
JV-Man I am beginning to think that a fart app would have been easier.
Attachments
Using the graphic that I posted if the cut angle is larger than 65 degrees produced from the blue line and the desired object ball path black line, shooting from cueball position B, is impossible without masse.
