### sample presentation 2 - Bowling balls

HOW TO MAKE
MORE STRIKES IN
BOWLING
Solution: polyurethane
coverstock replaces polyester
coverstocks
PROBLEM: HOW
TO MAKE MORE
STRIKES
• Using a bowling ball with
a plastic or polyester
cover results in fewer
strikes
• With the polyester balls
there is not enough
friction between the ball
and the lane so the ball
skids too close to the
pins or cannot make a
large enough hook.
SOLUTION: POLYURETHANE
COVERSTOCK ON BOWLING BALLS
• First introduced in the
1980’s by AMF
(American Machine and
Foundry)
• ‘Angle’ was the first
urethane bowling ball
approved by the
American Bowling
Congress (Jowdy)
SOLUTION: HOW IT WORKS
• The polyurethane is
softer than polyester
• This increases the
friction between the ball
and bowling lane
• Increased friction =
between the
polyurethane and the
bowling lane = increased
hook potential
• A hook increases the
chance of a strike
because the ball hits the
pins at an angle
A hook occurs when the ball
does not roll straight but
instead ´hooks´ to the left or
right.
WHY IS A HOOK IMPORTANT?
“Bowlers who create an
entry angle close to 90
degrees (meaning the ball
enters the pocket
perpendicular to the 1 and 3
pins for righties or 1 and 2
pins for lefties) throw a lot
more strikes than bowlers
who don't. “ (Goodger)
EVIDENCE
Comparing the blue and green lines shows that the urethane
coated ball will cross more lanes that a polyester ball
This increases the chance of having the ball hook into the pins at a
90o angle
EVIDENCE
Comparing the blue and brown lines shows that the
urethane coated ball will hook at a higher angle into the
pins than the polyester/plastic ball
(Cotter, 2008)
PLASTIC VERSUS
URETHANE
COVERSTOCK HOOK
POTENTIAL
Plastic coverstock
bowling balls score
between 0 and 75
The higher the number
the higher the hook
potential of the ball
Polyurethane
coverstock bowling
balls score above 75
(The Perfect Scale)
INTERACTION: ECONOMICS
• Plastic bowling balls range from \$20 to \$50 (Goodger, J. and R. Carruba)
• Most urethane bowling balls start at \$100 (How Much Does a Bowling
Ball Cost)
•Urethane bowling balls are more durable than plastic
•Urethane bowling balls are made of softer material, are able to
flex more when rolled, have less chance of cracking.
(San Diego plastics, Inc.)
INTERACTION: ECONOMICS
For beginners, plastic bowling balls are
more appropriate because they are cheaper
and can still withstand the drops and rolls of
bowling
• For the more
experienced bowler and
someone who would
like to improve
urethane bowling balls
provide durability with
long lasting life.
WHAT I GOOGLED: WITH EACH WEB SITE I FOUND
ADDITIONAL WORDS TO USE IN MY SEARCHES
For the problem:
For the solution: I used both the web and Bilder (images) pages
• History of polyurethane bowlingballs
• Physics of polyurethane bowling balls
• What is a hook in bowling
• how many more strikes using a urethane bowling ball
• NPS score and bowling balls
WHAT I GOOGLED: WITH EACH WEB SITE I FOUND
ADDITIONAL WORDS TO USE IN MY SEARCHES
For the Interaction
• I looked up regulations of bowling balls and coverstocks – not
much help
• Each top bowling ball company and where their bowling balls are
manufactured – interesting but again not much help
• Average cost of plastic and polyester bowling balls
• Durometer of plastic and polyester bowling balls
RESOURCES
• Admin. Bowling Ball Terms. BowlersParadise.com, 22 May 2014. Web. 09 Sept. 2014.
• "Bowling Ball Illustration." Wikipedia. Wikimedia Foundation, 09 Jan. 2014. Web. 21
Sept. 2014. http://en.wikipedia.org/wiki/Bowling_ball .
• Carruba, Rich. "Bowling Ball Evolution." Bowlingball.com. Web. 30 Aug. 2014.
http://www.bowlingball.com/BowlVersity/bowling-ball-evolution .
• Carruba, Rich. "Price Ranges Of Bowling Balls." Bowlingball.com. Web. 22 Sept. 2014.
http://www.bowlingball.com/BowlVersity/price-ranges-of-bowling-balls .
• Clifton, Ron. "Ron Clifton's Coaching Articles." (Hook Image). Bowlercentral.com, 4
Mar. 2007. Web. 30 Aug. 2014. http://bowlercentral.com/RonClifton.htm .
• Cotter, Ed. "Lane Transition - Part 1." Bowler 2 Bowler. Worldpress.com, 14 Dec. 2008.
Web. 09 Sept. 2014. http://bowler2bowler.wordpress.com/2008/12/14/lane-transitionpart-1/ .
• Goodger, Jef. "Bowling Myth - Throwing a Hook Makes You a Great Bowler." About
Sports. Web. 08 Sept. 2014. http://bowling.about.com/od/learntobowl/a/DoesThrowing-A-Hook-Make-You-A-Great-Bowler.htm .
• Goodger, Jef. "How to Choose the Right Bowling Ball for Your Game." About.com. Web.
22 Sept. 2014.
RESOURCES
• "Pinsetters and Polyurethane: The Technology of Bowling." GoBowling.com, 6 Mar.
2014. Web. 08 Sept. 2014. http://www.gobowling.com/News/March-2014/Pinsetters-andPolyurethane-The-Technology-of-Bowl .
• "Plastic Vs. Urethane Bowling Balls." Bowlingball.com. Web. 30 Aug. 2014.
http://www.bowlingball.com/BowlVersity/plastic-vs-urethane-bowling-balls .
• "Polyurethane." Wikipedia. Wikimedia Foundation, 09 Sept. 2014. Web. 09 Sept. 2014.
http://en.wikipedia.org/wiki/Polyurethane .
• Ryan, Lois. "Bowling Innovation in Technology." Sporting Life, 27 Aug. 2009. Web. 30
Aug. 2014. http://www.sportinglife360.com/index.php/bowling-innovation-intechnology-40283/ .
• San Diego Plastics, Inc. "POLYURETHANE." Web. 22 Sept. 2014.
http://www.sdplastics.com/polyuret.html .
• Schauland, Derek, and O. Wallace. "How Does Friction Affect the Motion of a Bowling
Ball?" WiseGeek, 22 Aug. 2014. Web. 30 Aug. 2014. http://www.wisegeek.com/how-doesfriction-affect-the-motion-of-a-bowling-ball.htm .
• Siefers, Nick. "Bowling Ball Shell Chemistry 101." International Tenpin Bowling Coaches
Association, 26 Jan. 2013. Web. 30 Aug. 2014.
http://www.itbca.bowlingknowledge.info/index.php/winter-2013/85-bowling-ball-shellchemistry-101 .
• "Sports, Fitness, and Nutrition." Entry Angle Illustration. IHS Globalspec, 29 Feb. 2012.
Web. 08 Sept. 2014. http://cr4.globalspec.com/blogentry/19242/A-Bowler-s-Balls-is-AllThat-Counts .
RESOURCES
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"How Much Does a Bowling Ball Cost? | HowMuchIsIt.org." Howmuchisit.org. Web. 22 Sept. 2014. http://www.howmuchisit.org/bowling-ball-cost/ .
Jowdy, John. Bowling Execution. 2nd ed. Champaign, IL: Human Kinetics, 2002. 176. Print.
Lamb, Kevin. "How Technology Has Changed the Game of Ten Pin Bowling." Sporting Life 360. RR Donnelley, 25 Aug. 2009. Web. 08 Sept. 2014.
http://www.sportinglife360.com/index.php/how-technology-has-changed-the-game-of-ten-pin-bowling-2-40366/ .
Manfredi, Richard. "The Differences Between Bowling Balls." EHow. Demand Media, 04 July 2009. Web. 30 Aug. 2014.
http://www.ehow.com/facts_5152630_differences-between-bowling-balls.html .
Mitchell, Tony. "The Chemistry of Bowling: A Short History of Bowling Balls, Lanes, Coatings, and Conditioners." Web log post. Thoughts From The
Heart On The Left. 26 July 2006. Web. 09 Sept. 2014. http://heartontheleft.wordpress.com/2008/07/26/the-chemistry-of-bowling-a-short-historyof-bowling-balls-lanes-coatings-and-conditioners/ .
Pearce, Chris. "How Technology Has Changed the Game of Ten Pin Bowling." Sporting Life, 30 Aug. 2009. Web. 30 Aug. 2014.
http://www.sportinglife360.com/index.php/how-technology-has-changed-the-game-of-ten-pin-bowling-40211/ .
"The Perfect Scale® - Helping Bowlers Make Better Decisions." Bowlingball.com. Web. 31 Aug. 2014.
http://www.bowlingball.com/info/perfect_scale.html .
"Physics Of Bowling." Real World Physics Problems.com. Web. 30 Aug. 2014. http://www.real-world-physics-problems.com/physics-ofbowling.html .
"Pinsetters and Polyurethane: The Technology of Bowling." GoBowling.com, 6 Mar. 2014. Web. 08 Sept. 2014.
http://www.gobowling.com/News/March-2014/Pinsetters-and-Polyurethane-The-Technology-of-Bowl .
"Plastic Vs. Urethane Bowling Balls." Bowlingball.com. Web. 30 Aug. 2014. http://www.bowlingball.com/BowlVersity/plastic-vs-urethane-bowlingballs .
"Polyurethane." Wikipedia. Wikimedia Foundation, 09 Sept. 2014. Web. 09 Sept. 2014. http://en.wikipedia.org/wiki/Polyurethane .
Ryan, Lois. "Bowling Innovation in Technology." Sporting Life, 27 Aug. 2009. Web. 30 Aug. 2014.
http://www.sportinglife360.com/index.php/bowling-innovation-in-technology-40283/ .
San Diego Plastics, Inc. "POLYURETHANE." Web. 22 Sept. 2014. <http://www.sdplastics.com/polyuret.html>.
Schauland, Derek, and O. Wallace. "How Does Friction Affect the Motion of a Bowling Ball?" WiseGeek, 22 Aug. 2014. Web. 30 Aug. 2014.
http://www.wisegeek.com/how-does-friction-affect-the-motion-of-a-bowling-ball.htm .
Siefers, Nick. "Bowling Ball Shell Chemistry 101." International Tenpin Bowling Coaches Association, 26 Jan. 2013. Web. 30 Aug. 2014.
http://www.itbca.bowlingknowledge.info/index.php/winter-2013/85-bowling-ball-shell-chemistry-101 .
"Sports, Fitness, and Nutrition." Entry Angle Illustration. IHS Globalspec, 29 Feb. 2012. Web. 08 Sept. 2014.
http://cr4.globalspec.com/blogentry/19242/A-Bowler-s-Balls-is-All-That-Counts .
Wikipedia. "Hook (bowling)." Wikimedia Foundation, 22 Aug. 2014. Web. 30 Aug. 2014. http://en.wikipedia.org/wiki/Hook_%28bowling%29 .