Post by: WillynHook on February 22, 2006, 12:48:49 AM
mine to analyze, calculate, and experimentally measure some of the
rotational dynamics of bowling ball cores.
So, I'm sacrificing some of my Lane#1's to the cause. --sniff--
What we won't do to push science and understanding forward.
Anyway, here is an image of the inside of my Cherry C^2. Very interesting, eh?
http://faculty.salisbury.edu/%7Ejwhoward/temp/CherryC2_Core.JPG
Next step, to remove all but the core from both halves so that we can
conduct an experiment to determine the moment of inertia experimentally.
Dr. Joe
--------------------
Dr. Joseph Howard
Joe's Physics Page (http://"http://faculty.salisbury.edu/%7Ejwhoward/")
"Imagine what you could do,
if you could do what you imagine"
F.O.S. Member
Uranium Pearl - 16lbs
Bullet - 16lbs
Pearl Cherry/C^2 13.78 lbs - Now cut in half.
XXXL - 16lbs
Lane 1: 4 Ball Roller
More saber-toothed saws soon. I hope!
Edited on 2/22/2006 9:38 AM
Edited on 3/2/2006 8:44 AM
Edited on 3/2/2006 8:51 AM
Edited on 3/6/2006 9:04 AM
Edited on 3/22/2006 8:35 AM
Edited on 3/22/2006 12:49 PM
Edited on 3/31/2006 2:38 PM
Edited on 4/3/2006 9:27 AM
Edited on 5/22/2006 2:47 PM
Post by: heatcell9 on February 22, 2006, 08:51:56 AM
you probably could have contacted lane1 and gotten a core to test. would have had more accurate results also.
Post by: WillynHook on February 22, 2006, 08:54:57 AM
Link fixed....
Edited on 3/2/2006 8:54 AM
Post by: dizzyfugu on February 22, 2006, 09:01:52 AM
--------------------
DizzyFugu --- Reporting from Germany
Team "X": http://homepage.mac.com/timlinked/
"All that we see or seem, is but a dream within a dream..." - Edgar Allen Poe
Post by: zeusjr on February 22, 2006, 09:14:32 AM
Not a cherry.... I coulda sent a Broke Viper instead... Poor cherry...
Be sure to post up the info..
Post by: WSUstroker on February 22, 2006, 11:18:19 AM
--------------------
Dan Chambers
Winona State University Bowling
http://www.allbowling.com/journal/public.php?uid=832&leagueid=289
Post by: WillynHook on February 22, 2006, 11:18:45 AM
Oh, and here is a Track Voodoo core just for comparison.
http://faculty.salisbury.edu/%7Ejwhoward/temp/Voodoo.JPG
Very different construction materials...
Dr. Joe
--------------------
Dr. Joseph Howard
Joe's Physics Page (http://"http://faculty.salisbury.edu/%7Ejwhoward/")
"Imagine what you could do,
if you could do what you imagine"
F.O.S. Member
Uranium Pearl - 16lbs
Bullet - 16lbs
Pearl Cherry/C^2 13.78 lbs - Now cut in half.
XXXL - 16lbs
Lane 1: 4 Ball Roller
More saber-toothed saws soon. I hope!
Post by: WillynHook on February 22, 2006, 11:20:44 AM
Hmmmm.... I should take a picture of the contraption that was used to
slice the balls in half...
but, imagine if you will something that is part ball spinner and part
clamped saw.... that is MacGyver'ed together.
Dr. Joe
--------------------
Dr. Joseph Howard
Joe's Physics Page (http://"http://faculty.salisbury.edu/%7Ejwhoward/")
"Imagine what you could do,
if you could do what you imagine"
F.O.S. Member
Uranium Pearl - 16lbs
Bullet - 16lbs
Pearl Cherry/C^2 13.78 lbs - Now cut in half.
XXXL - 16lbs
Lane 1: 4 Ball Roller
More saber-toothed saws soon. I hope!
Post by: WillynHook on March 02, 2006, 08:00:12 AM
It is not as tough as I would have thought. Some surprising observations about
ball construction so far - there is a lot of variation between materials
included inside the balls, there is variation of cover thickness between
manufacturers and cover thickness variation within single balls, and the
core material is really really dense stuff...wow.
Anyway, here is a picture(s) of one of the cores removed.
http://faculty.salisbury.edu/%7Ejwhoward/temp/core.JPG
http://faculty.salisbury.edu/%7Ejwhoward/temp/core2.JPG
Will post photos of the lane cores soon.
Dr. Joe
--------------------
Dr. Joseph Howard
Joe's Physics Page (http://"http://faculty.salisbury.edu/%7Ejwhoward/")
"Imagine what you could do,
if you could do what you imagine"
F.O.S. Member
Uranium Pearl - 16lbs
Bullet - 16lbs
Pearl Cherry/C^2 13.78 lbs - Now cut in half.
XXXL - 16lbs
Lane 1: 4 Ball Roller
More saber-toothed saws soon. I hope!
Edited on 3/2/2006 8:49 AM
Post by: WillynHook on March 06, 2006, 08:14:54 AM
That green stuff is very dense compared to the grey filler.
http://faculty.salisbury.edu/%7Ejwhoward/temp/Cherry_Bits.JPG
(Anybody wanna buy a slightly used Cherry? Comes disassembled.)
http://faculty.salisbury.edu/%7Ejwhoward/temp/Cherry_Core.JPG
http://faculty.salisbury.edu/%7Ejwhoward/temp/Cherry_Core2.JPG
Dr. Joe
--------------------
Dr. Joseph Howard
Joe's Physics Page (http://"http://faculty.salisbury.edu/%7Ejwhoward/")
"Imagine what you could do,
if you could do what you imagine"
F.O.S. Member
Uranium Pearl - 16lbs
Bullet - 16lbs
Pearl Cherry/C^2 13.78 lbs - Now cut in half.
XXXL - 16lbs
Lane 1: 4 Ball Roller
More saber-toothed saws soon. I hope!
Edited on 3/6/2006 9:05 AM
Post by: killswitch66 on March 06, 2006, 08:34:10 AM
--------------------
VIVA LA METAL MILITIA!
\m/
member of the FOS, LANE 1 OWNS
Post by: da Shiv on March 06, 2006, 01:26:51 PM
http://faculty.salisbury.edu/%7Ejwhoward/temp/CherryC2_Core.JPG
what is the long white rod that runs all the way down the core--an extension of the pin? I didn't think that pins ran all the way down the length of a ball core. If that isn't what it is, what is it?
Shiv
--------------------
Listening to the monotonous staccato of rain on my desk top
Post by: WillynHook on March 06, 2006, 01:59:06 PM
quote:
what is the long white rod that runs all the way down the core--an extension of the pin?
Yup, at least in this core it had a long rod extending the entire length of
the core. (Cherry C^2). I'm guessing this was needed because the core has two
parts, the yellow mini diamonds, then the large green diamond surrounding.
Next up, getting the core out of a cracked cover cherry bomb... plus some other
assorted goodies...
Dr. Joe
--------------------
Dr. Joseph Howard
Joe's Physics Page (http://"http://faculty.salisbury.edu/%7Ejwhoward/")
"Imagine what you could do,
if you could do what you imagine"
F.O.S. Member
Uranium Pearl - 16lbs
Bullet - 16lbs
Pearl Cherry/C^2 13.78 lbs - Now cut in half.
XXXL - 16lbs
Lane 1: 4 Ball Roller
More saber-toothed saws soon. I hope!
Post by: WillynHook on March 06, 2006, 02:01:22 PM
quote:
hey ive always wondered, whats the core made out of?
At this point I have no idea. I'm in the mechanical ripping cores out stage.
I'll figure out the materials later. I will say, it acts a lot like chalk... very dense and strong chalk... but chalky nonetheless.
Dr. Joe
Post by: da Shiv on March 06, 2006, 04:52:45 PM
Keep this post going as you uncover new info. I find this very interesting.
Shiv
--------------------
Listening to the monotonous staccato of rain on my desk top
Post by: Ozzy Fudd on March 09, 2006, 12:22:08 PM
--------------------
I'm a wabbit swayer!! ...a guitar pwayer!! Wit a nasty habit... Kill Da' Wabbit!!
Post by: WillynHook on March 22, 2006, 07:35:41 AM
A Cherry Bomb. So, first the images to ponder...
The leftovers of the destruction process...
http://faculty.salisbury.edu/%7Ejwhoward/temp/CherryBombBits.JPG
And images of the core & pin.
http://faculty.salisbury.edu/%7Ejwhoward/temp/CherryBomb1.JPG
http://faculty.salisbury.edu/%7Ejwhoward/temp/CherryBomb2.JPG
http://faculty.salisbury.edu/%7Ejwhoward/temp/CherryBomb3.JPG
I'm getting better at getting the cores out of the balls, once I know the
approximate size, I can use a power saw to rip most of the outer ball off,
then use a high speed dremel tool to get the remaining material off. In fact,
I was able to very carefully remove the coverstock from around the pin and
remove it in one piece this time. You might notice a bit of plug material in
the above core, the finger hole drilling removed some of the core near the
pin.
The material inside the Cherry Bomb was different than the Cherry C^2. It was
much tougher stuff and very very dusty when removing. The core material seemed
to be less dense. Anyway, hope you are still interested in my reports.
Calculations and experimental results are also in the works. So stay tuned.
quote:
I was wondering if you would like to have a Brunswick Zone (Danger Zone?)
Nice to offer, but I have plenty of donated balls to carve up. Thanks
anyway.
Dr. Joe
--------------------
Dr. Joseph Howard
Joe's Physics Page (http://"http://faculty.salisbury.edu/%7Ejwhoward/")
"Imagine what you could do,
if you could do what you imagine"
F.O.S. Member
Uranium Pearl - 16lbs
Bullet - 16lbs
Pearl Cherry/C^2 13.78 lbs - Now cut in half.
XXXL - 16lbs
Lane 1: 4 Ball Roller
More saber-toothed saws soon. I hope!
Edited on 3/22/2006 8:36 AM
Edited on 3/22/2006 10:46 AM
Post by: WillynHook on March 22, 2006, 11:48:26 AM
I have a small movie of the experimental apparatus that we have cobbled
together to experimentally calculate the rotational moment of inertia about
a fixed spin axis. We can pick any axis we want, use some conservation of
energy calculations, and determine an experimental result. We are then
going to compare the experimental results to the theoretical calculations we
are doing (think lots of calculus, intergrals, and mathematics). It might
not look like much, but that is the neat thing about physics, it doesn't
have to be fancy to get results that are accurate and that can be analyzed
for information.
We can use any core about any fixed axis. Kinda neat, eh?
Anywho...
Movie #1: http://faculty.salisbury.edu/%7Ejwhoward/temp/exp1.wmv ~ 6Mb
Movie #2: http://faculty.salisbury.edu/%7Ejwhoward/temp/exp2.wmv ~ 2Mb
Plus more pictures for you to gander at....
The Experiment: http://faculty.salisbury.edu/%7Ejwhoward/temp/exp1.JPG
Diamond Core: http://faculty.salisbury.edu/%7Ejwhoward/temp/exp2.JPG
Diamond Core w/Diff Axis: http://faculty.salisbury.edu/%7Ejwhoward/temp/exp3.JPG
The Experiment w/Core: http://faculty.salisbury.edu/%7Ejwhoward/temp/exp4.JPG
Hope you like. Science on the march....
Dr. Joe
--------------------
Dr. Joseph Howard
Joe's Physics Page (http://"http://faculty.salisbury.edu/%7Ejwhoward/")
"Imagine what you could do,
if you could do what you imagine"
F.O.S. Member & Physics Researcher
Uranium Pearl - 16lbs
Bullet - 16lbs
XXXL - 16lbs
Lane 1: 4 Ball Roller
Oh! I need some Buzzsaw replacements! I have
sacrified some to the cause of science research!
Pearl Cherry/C^2 - Diamond Core Only (Science Project)
Cherry Bomb - Diamond Bomb Core Only (Science Project)
& the many pieces of the coverstock...
Edited on 3/22/2006 12:50 PM
Edited on 3/22/2006 12:56 PM
Edited on 3/22/2006 12:56 PM
Post by: Retroman on March 24, 2006, 07:53:16 PM
--------------------
Tripping 10's, Its all about entry angle into the hole!!
Post by: WillynHook on March 25, 2006, 06:31:21 PM
quote:
Can we expect any more videos any time soon ?
Yup, maybe in a few days. Got some new cores removed.
quote:
I still can't believe you sacraficed a sacred cherry c/2 that has NEVER been reproduced!!!
Ah well, it just makes the others all that more of a treasure for those that
want them. Thems the breaks.
Dr. Joe
--------------------
Dr. Joseph Howard
Joe's Physics Page (http://"http://faculty.salisbury.edu/%7Ejwhoward/")
"Imagine what you could do,
if you could do what you imagine"
F.O.S. Member & Physics Researcher
Uranium Pearl - 16lbs
Bullet - 16lbs
XXXL - 16lbs
Lane 1: 4 Ball Roller
Oh! I need some Buzzsaw replacements! I have
sacrified some to the cause of science research!
Pearl Cherry/C^2 - Diamond Core Only (Science Project)
Cherry Bomb - Diamond Bomb Core Only (Science Project)
& the many pieces of the coverstock...
Post by: WillynHook on March 25, 2006, 06:43:25 PM
quote:
resuts within this month
More likely by the end of April. (We have a university research conference
at the end of April when we are expected to present the fruits of our work)
So, stay tuned.... I will post progress reports to this thread as we go, however.
Cheers!
Dr. Joe
Post by: a_ak57 on March 25, 2006, 06:43:26 PM
EDIT: My statement about "best" in regards to energy retension during the spin phase.
--------------------
- Andy
Edited on 3/25/2006 7:45 PM
Post by: El Capitán on March 25, 2006, 06:50:09 PM
--------------------
A little boy looked up at me once and said "so you must be The Striking King." True story!
Post by: WillynHook on March 26, 2006, 10:23:08 AM
Columbia 300 Drive Accelerator
http://faculty.salisbury.edu/%7Ejwhoward/temp/Drive.JPG
http://faculty.salisbury.edu/%7Ejwhoward/temp/drivebits.JPG <--NEW
Ciao!
Edited on 4/3/2006 9:13 AM
Edited on 4/3/2006 9:13 AM
Post by: BowlerKidR on March 26, 2006, 10:25:01 AM
--------------------
"Strike for show, spare for dough"
I LIKE TO BOWL
Im A Hammer Head 100%
Post by: WillynHook on March 31, 2006, 01:38:07 PM
Just a small image update. Most of the cores & some of the calcs.
http://faculty.salisbury.edu/%7Ejwhoward/temp/cores_calcs.JPG
Dr. Joe
--------------------
Dr. Joseph Howard
Joe's Physics Page (http://"http://faculty.salisbury.edu/%7Ejwhoward/")
"Imagine what you could do,
if you could do what you imagine"
F.O.S. Member & Physics Researcher
Uranium Pearl - 16lbs
Bullet - 16lbs
XXXL - 16lbs
Lane 1: 4 Ball Roller
Oh! I need some Buzzsaw replacements! I have
sacrified some to the cause of science research!
Pearl Cherry/C^2 - Diamond Core Only (Science Project)
Cherry Bomb - Diamond Bomb Core Only (Science Project)
& the many pieces of the coverstock...
Post by: BowlerKidR on March 31, 2006, 01:42:51 PM
--------------------
"Strike for show, spare for dough"
I LIKE TO BOWL
Im A Hammer Head 100%
Post by: T-GOD on March 31, 2006, 02:05:15 PM
Post by: WillynHook on April 03, 2006, 09:28:04 AM
of these cores. So, over the weekend I documented the process while removing
a uranium pearl core. (Thanks Richie!).
First the buzzsaw to cut up. Such a pretty ball, no doubt.
http://faculty.salisbury.edu/%7Ejwhoward/temp/uranium.JPG
And then along the way. Can you say lots of dust and sawing. I had to have
on a respirator mask, goggles, hat, gloves,...etc. Lots and lots of dust.
http://faculty.salisbury.edu/%7Ejwhoward/temp/ucore1.JPG
Then, using a roto-zip cutting/grinding tool for the finer detail work. You
start to see the core emerge from the filler material
http://faculty.salisbury.edu/%7Ejwhoward/temp/ucore2.JPG
Then you are left with the following leftovers when all the careful detail
work is finised. (Plus the 2 hours of clean-up that goes with it.)
http://faculty.salisbury.edu/%7Ejwhoward/temp/ubits.JPG
The final uranium core..
http://faculty.salisbury.edu/%7Ejwhoward/temp/ucore3.JPG
So, we now have the full set of cores/shapes to continue our testing.
Hey, actual REAL science & PHYSICS concepts applied to these core designs.
This is something I would like to point out since there has been a lot
debate in a couple threads lately about lane one cores.
Anyway, enjoy!
Dr. Joe
--------------------
Dr. Joseph Howard
Joe's Physics Page (http://"http://faculty.salisbury.edu/%7Ejwhoward/")
"Imagine what you could do,
if you could do what you imagine"
F.O.S. Member & Physics Researcher
Uranium Pearl - 16lbs
Bullet - 16lbs
XXXL - 16lbs
Lane 1: 4 Ball Roller
Oh! I need some Buzzsaw replacements! I have
sacrified some to the cause of science research!
Pearl Cherry/C^2 - Diamond Core Only (Science Project)
Cherry Bomb - Diamond Bomb Core Only (Science Project)
& the many pieces of the coverstock...
Edited on 4/3/2006 9:28 AM
Post by: WillynHook on April 14, 2006, 12:28:03 PM
bump
--------------------
Dr. Joseph Howard
Joe's Physics Page (http://"http://faculty.salisbury.edu/%7Ejwhoward/")
"Imagine what you could do,
if you could do what you imagine"
F.O.S. Member & Physics Researcher
Uranium Pearl - 16 lbs
Uranium Solid - 15 lbs
Cobalt Bomb - 15 lbs
Tsunami H^2O - 15 lbs
Bullet - 16lbs
XXXL - 16lbs
Lane 1: 4 Ball Roller
Post by: WillynHook on May 22, 2006, 02:33:45 PM
Something new.... http://www.lane1bowling.com/home/SUSRC.doc
Plus, the semester is coming to an end with finals currently underway. I am
beginning to finalize the materials, double check calculations, measurements,
etc... hopefully I'll have something more substantial to report soon. (That
is if I survive all 106 final exams I have to grade over the next two days.)
Dr. Joe
Edited on 5/22/2006 2:51 PM