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 = increased adhesion 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)

EVIDENCEComparing the blue and green lines shows that the urethane coated ball will cross more lanes that a polyester ballThis 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

The higher the number the higher the hook potential of the ball

Plastic coverstock bowling balls score between 0 and 75

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.

For the solution: I used both the web and Bilder (images) pages• Technological advances in bowling• History of polyurethane bowlingballs• Advantages 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 problem:• Disadvantages of polyurethane

bowlingballs

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

WHAT I GOOGLED: WITH EACH WEB SITE I FOUND ADDITIONAL WORDS TO USE IN MY SEARCHES

• Admin. Bowling Ball Terms. BowlersParadise.com, 22 May 2014. Web. 09 Sept. 2014. http://shop.bowlersparadise.com/blog/2014/05/22/specs/ .

• "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-transition-part-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/Does-Throwing-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. http://bowling.about.com/od/learntobowl/ht/howtochoosetherightball.htm .

• "How Bowling Ball Is Made." How Products Are Made. Advameg Inc., 2014. Web. 30 Aug. 2014. http://www.madehow.com/Volume-4/Bowling-Ball.html .

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-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-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-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 .

RESOURCES

• "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-history-of-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-of-bowling.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-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-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 .

RESOURCES