better site to get rules
another, and better site for rules - you can print them all out, and includes them for straight pool, too:
http://www.bca-pool.com/play/tournaments/rules/rls_gen.shtml
....oh, and yeah the physics and math being so related to pool?
On a very sophisticated level, one supposes principles of physics could allow you to explain all sorts of observed physical behavior...
Consider however, the simple curveball; trying to explain its velocity, rate of deviation from the expected line of flight, etc. with applied principles of physics and math proves extraordinarily difficult.
Now, on a pool table some things behave as you might expect from school courses in physics...like a cue ball will reflect off the rail at the same angle it came into it (like light off a mirror), like a cueball will tangent off an object ball at right angles to the object ball's movement....right?
Well, sorta as a general frame of reference, but you get to seriously bend lots of the basic notions on the pool table! There's english on the ball, the rail is lively in some spots and dead in others, and the cloth nap can be used to drag the cueball when the angle is exceedingly narrow, and changes in humidity will cause their own special brand of havoc, increased speed increases the angle off the rail (straightens out the V), and decreased speed decreases it (makes the V wider)... well the list does go on and on. All explainable by laws of physics I'm sure, but much like the basic curveball, its not so basic.
One thing you'd probably like to see are the high speed camera / slow motion shots of what happens when the cue tip strikes the cueball in various ways....these are out on the net somewhere, I just can't remember where - think it might have been a Billiards Digest article? It might even be in these forums ...someplace. Google for it. Maybe somebody reading this thread knows & could post a location for these - ? As a physics & pool devotee, I think you'd like it a lot.
another, and better site for rules - you can print them all out, and includes them for straight pool, too:
http://www.bca-pool.com/play/tournaments/rules/rls_gen.shtml
....oh, and yeah the physics and math being so related to pool?
On a very sophisticated level, one supposes principles of physics could allow you to explain all sorts of observed physical behavior...
Consider however, the simple curveball; trying to explain its velocity, rate of deviation from the expected line of flight, etc. with applied principles of physics and math proves extraordinarily difficult.
Now, on a pool table some things behave as you might expect from school courses in physics...like a cue ball will reflect off the rail at the same angle it came into it (like light off a mirror), like a cueball will tangent off an object ball at right angles to the object ball's movement....right?
Well, sorta as a general frame of reference, but you get to seriously bend lots of the basic notions on the pool table! There's english on the ball, the rail is lively in some spots and dead in others, and the cloth nap can be used to drag the cueball when the angle is exceedingly narrow, and changes in humidity will cause their own special brand of havoc, increased speed increases the angle off the rail (straightens out the V), and decreased speed decreases it (makes the V wider)... well the list does go on and on. All explainable by laws of physics I'm sure, but much like the basic curveball, its not so basic.
One thing you'd probably like to see are the high speed camera / slow motion shots of what happens when the cue tip strikes the cueball in various ways....these are out on the net somewhere, I just can't remember where - think it might have been a Billiards Digest article? It might even be in these forums ...someplace. Google for it. Maybe somebody reading this thread knows & could post a location for these - ? As a physics & pool devotee, I think you'd like it a lot.