Online Videos from Dr. Dave and Bob Jewett ("The Fort Collins Project")

dr_dave

dr_dave

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FYI, Bob Jewett and I recently spent a weekend filming demos and performing experiments. Below are the clips we put together. We also might write some articles in the near future concerning some of the details and other results.

NV B.49 - Using your knuckles to prevent a double hit and stop the cue ball, with Bob Jewett

NV B.50 - Using your knuckles to prevent a double hit and get follow, with Bob Jewett

NV B.51 - Using your natural forward stroke limit to prevent a double hit and get draw, with Bob Jewett

NV B.52 - Using a fouette shot to prevent a double hit, with Bob Jewett

NV B.53 - How to determine which ball was hit first by watching the cue ball, with Bob Jewett

NV B.54 - How to determine which ball was hit first by watching the object balls, with Bob Jewett

NV B.55 - Bob Jewett's two-times-fuller frozen-cue-ball aiming system

NV B.56 - Bob Jewett's ten-times-fuller frozen-object-ball aiming system

NV B.57 - Kick shot speed, topspin, and bottom-spin effects, with Bob Jewett


HSV B.40 - stroke speed and acceleration analysis, with Bob Jewett

HSV B.41 - bank speed effects, with Bob Jewett

HSV B.42 - tip and cue efficiency, with Bob Jewett​


We hope you enjoy the clips and find them useful. We also look forward to your comments, questions, and suggestions.

Regards,
Dave
 
Wow, what a great gold mine of instructional videos. I know the membership here will benefit from seeing those. Very nice, and thanks for posting them up.

:clapping: :clapping: :clapping: :clapping:

So that's what Bob Jewett looks like! :)

JAM
 
Very cool!

I could only watch a couple or I'll get in trouble at work. Can't wait to get home and watch the rest! Thanks a bunch for posting these!!
 
YouTube and productivity

lady9ball said:
I could only watch a couple or I'll get in trouble at work. Can't wait to get home and watch the rest! Thanks a bunch for posting these!!
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I wouldn't want you to get into trouble at work. Some companies actually block YouTube access because of its threat to productivity. For those people, I provide an alternative interface (see the links at the top of my NV and HSV webpages) that allows you to view non-streamed WMV files directly. I think most (if not all) people can view these. Now, even people at YouTube-blocked companies can be unproductive at work. :wink:

Regards,
Dave
 
dr_dave said:
FYI, Bob Jewett and I recently spent a weekend filming demos and performing experiments. Below are the clips we put together. We also might write some articles in the near future concerning some of the details and other results. ...
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I had a great time working with Dave and doing the experiments. Also, it was good to see 12^2 again.

The article I just submitted to Billiards Digest is about judging which ball is struck first in close hit situations. I think that will be the October issue. It includes some situations that didn't get onto video.
 
ball referees

Bob Jewett said:
I had a great time working with Dave and doing the experiments. Also, it was good to see 12^2 again.
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Bob, I also had a great time and hope we can do it again soon. Maybe we can get "Gross" to help more next time.

Bob Jewett said:
The article I just submitted to Billiards Digest is about judging which ball is struck first in close hit situations. I think that will be the October issue. It includes some situations that didn't get onto video.
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I look forward to seeing that. It is nice when the cue ball or object ball can serve as the automatic referee (per NV B.53 and NV B.54).

Regards,
Dave
 
Great information, Bob. I had figured out the 2 times fuller situation on my own, but several of the other frozen ball situations are really enlightening.

I used to watch Nick Varner play the one off the spot from the head string when it was frozen to another ball, and he would usually make it. He must have figured out something similar to the 10 times fuller shot.


Very impressive.

Danny
 
Danny Kuykendal said:
... I used to watch Nick Varner play the one off the spot from the head string when it was frozen to another ball, and he would usually make it. He must have figured out something similar to the 10 times fuller shot....
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I was showing the 10-times-fuller system to someone (I think at the Sands) and Jim Rempe walked by. I asked him how to make the example shot where he had to drive the object ball about 10 degrees into the blocker ball and go about 6 diamonds to the pocket. He said, "I guess I'd shoot it like this," eyed the shot a moment and fired it in without any system. Sometimes experience is enough.

For the one pocket double spot shot, you usually have the freedom of cue ball placement. The surprising thing for me with that shot is that some very good players will not play it.
 
I would suspect that most of the respected referees would be able to explain this physics because they were probably trained by Bob J. in Vegas during the REF BCAPooLeague school.

Bob has been doing this for years and a lot of the great refs are greatful for Bob's insights and passing on this info.

thanks again Bob
 
Tom In Cincy said:
I would suspect that most of the respected referees would be able to explain this physics because they were probably trained by Bob J. in Vegas during the REF BCAPooLeague school.

Bob has been doing this for years and a lot of the great refs are greatful for Bob's insights and passing on this info.

thanks again Bob
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Hopefully, now that these videos are available, referees and players not already trained by Bob will be better at looking for this stuff. FYI, I have links to lots of rules-related videos here:

Regards,
Dave
 
Some great tips there.

The harder bank going slightly longer surprised me. Just goes to show how little we realize spin is affecting such shots.

Colin
 
Ouch!!

Thanks for the vids!!

Those knuckle banger shots make me cringe just at the thought of it. Long arms and too many skinned knuckles in the past :eek: I guess. The foutte shot sure looks like a foul to me!!

I've got to get back to viewing the rest now. :smile: Thanks again.

td
 
foutte shot a foul?

grindz said:
The foutte shot sure looks like a foul to me!!
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It certainly couldn't be called a foul based on the action of the cue ball (see the cue ball motion in the "live" video NV B.52). I agree that it is too close to call in super slow motion, but if you stare at the cue ball, its motion doesn't seem to be altered, so I don't think there was secondary contact.

Regards,
Dave
 
Good stuff, thanks for posting and taking the time to make the vids. I found the fouette shot to be interesting
 
Thanks!

Icon of Sin said:
Good stuff, thanks for posting and taking the time to make the vids. I found the fouette shot to be interesting
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You're welcome, and thank you to everybody. I very much enjoy making the videos, especially when I get to work with great people like Tom Ross, Dave Gross, and Bob Jewett.

Regards,
Dave
 
First thank you and Bob for sharing this information with everyone.

I have some questions about the tip re-bound videos. :confused:

Would the weight of the butt change anything?

Since the tip is on the cue ball for such a short period of time why would more re-bound be better than less?

A softer tip would absorb energy like a shock absorber equaling less re-bound so a harder tip would bounce higher.
A steel tip would probably bounce the highest but steel would not make a good break tip ... would it?
How about if the rest of the cue were made of a less compressible material than wood ... any effect?

Thanks again for sharing such great information.
You guys are like mad pool scientists or something. :thumbup:
 
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