You can easily prove it to yourself, if so.
Apples and oranges, but I think you're wrong about this too.
pj
chgo
Cue Tip Contact Myth-Busting Truths in Super Slow Motion
- Thread starter dr_dave
- Start date
pj
chgo
Yes, but not enough to make a big deal about it.
Can't prove something that's wrong, Patrick. You can try, but it can't be done.
You're allowed to think I'm wrong. I've been wrong before.
FYI, every time I mentioned a "hard tip" in the video and in this thread, I meant a playing-cue tip generally described as hard, not a jump or break cue phenolic tip. Also, I wasn't implying all the conclusions apply to massé shots that have different physics than typical shots.
Well you made a whole video about it.
Yeah, sure. Doesn't change the fact that you don't get the same spin with a hard tip and a soft tip.
Backtrack much?
Can't prove anything without controlled testing.
Me too - I just don't like staying there.
pj
chgo
Actually, I didn't. Nowhere in the video did I say a hard tip imparts more spin (or a soft tip imparts less spin). That wasn't 1 of the 6 myths I discussed and debunked. Watch again:
What controlled test have you done about tip hardness and spin? I posted one I've done lots of times (above in post #33).
pj
chgo
I hit a bunch of balls with a soft tip, and then I hit a bunch of balls with a hard tip. I noticed that the soft tip put more spin on the ball.
(edit: SCIENCE!)
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It's clearly what we're talking about.
Attachments
Oops. Now that I watched the video again, I do see that I did mention spin in the Myth 3 section. Sorry.
Bad boy!
Sorry, that's not a controlled test - if you did one I think you'd see different results. But since your impression of what's happening is working for you, it's likely not worth the trouble for you to be convinced otherwise. Hopefully somebody else will find the info more useful.
Good spins to ya,
pj
chgo
Sorry brosipher, I saw your so-called controlled test explained early in this thread. It's not a controlled test. Try mounting your cue to a pendulum with a hard tip and a soft tip, and let it go with slow speed. That is something approaching a controlled test.
Love,
Lou
Here's the test with a little more detail about the controls:
1. Use a striped ball as your "CB" with the stripe vertical and facing you.
2. Hit the ball on the edge of the stripe (maximum side spin), aiming it straight across the table (diamond to diamond) - put a target, like a piece of chalk, on the far rail to easily see if you're hitting straight across.
3. Hit it just hard enough to rebound to the near rail (or a consistent distance past that). Mark the spot it hits on the near rail.
4. Check the chalk mark after each shot to be sure you hit right on the edge of the stripe.
5. Don't count any shot if (1) you didn't hit the far rail target, (2) the chalk mark isn't exactly on the edge of the stripe, or (3) the speed is different.
pj
chgo
You have omitted the "control" piece that I wrote when you quoted me. I'll say it again, this time in blue and bold script. I hope you don't miss it.
Try mounting your cue to a pendulum with a hard tip and a soft tip, and let it go with slow speed.
Now I'll add a little more detail about the controls:
Release the pendulum from the same height in order to impact the cb in the same spot with the same speed.
Now you will have a repeatable experiment that can be legitimately termed a "controlled test."
Bon soir mon armoire,
Lou
Coriolis must be rolling in his grave.Sorry, I didn't mean to hurt anybody.