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Golf Physics 101

January 2, 2010 | By Pete Girotto | 1 Comment

swing_golfer3Now that I have traded in my 3 wood for a snow shovel, I have more time to read about golf than actually play it. Recently, I decided to look into the physics of golf and find out why after 12 years I still stink at it. So, I figured if I learn the science I can learn the art. And man was that a strain on the cabeza. Now I know why Wheel of Fortune used to follow Jeopardy on T.V…so you don’t think you’re a complete idiot and salvage whatever pride you have left.

In my perusing, I came across some interesting stuff that I thought was pretty cool. The following are some physics/scientifical explanations about different facets of the game. And for those smarty-pants’ out there that already know this stuff please feel free to add in the comments.

Ball Flight

After being struck the more backspin put on a golf ball the more loft and airtime it will have.

“As the ball spins, it forces air over the top of it and then behind it. This means that the air above the ball is moving faster than the air below the ball, and because of the pressure difference, the ball has additional force pushing it up, which helps it stay in the air for a longer period of time. This spin also helps golfers produce more accurate shots because with a backspin imparted on the ball, it drops quicker toward the end of the shot. And after hitting the ground, the backspin helps slow the ball more quickly.”*

Also, Dimples play a big role in keeping that ball in the air.

“Dimpled golf balls fly much further than smooth balls. The reason dimpled balls travel further than smooth balls is because the dimples on a golf ball create turbulence in the boundary layer. This actually helps because the dimples then scoop air back towards the rear of the ball. By moving more air to the rear, this helps keep the air pressure behind the ball from dropping. And by doing this, the amount of air pressure pulling backwards on the ball is decreased.” **

So, let’s get this straight, backspin and dimples are a major part of ball flight. Hmmmm…well I’ll tell you where else backspin and dimples are good…pickin’ up the ladies! That’s right, before I packed on the pounds I would flash a dimpled-cheek smile to the girls and bust out a pretty mean backspin on the dancefloor. Well, it wasn’t that easy. A man can dream can’t he? Oh well, back to the shovelin’!

**- http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/josh_fritts/flight.html

Filed Under: Golf Life Tagged With: backspin, ball flight, dimples, golf balls, golf physics, physics

Golf Ball Hell

December 9, 2009 | By Greg D'Andrea | 3 Comments

100_0231You can have a nervous breakdown trying to pick out golf balls. I hope I’m not alone in this assessment, but I can literally stand in front of a wall of golf ball boxes for like an hour, trying to figure out which ones I should pick.

Newbies to golf typically will purchase the cheapest options – Top Flite or the like, where $10 can buy you 20 balls. I envy those new golf hacks – the choice is easy for them. $10 for 20? That’s a no-brainer. They figure the balls are destined for the drink or lumber yard anyway, so why spend more?

However, I’ve been playing golf for 20 years. I know why I won’t spend $10 for 20 Top Flite’s. I’d like to have my ball last more than a hole without scuffs on it, thank you very much. And I’m not a terrible golfer either – I understand what “feel” means when it says “better distance and feel” on the side of the box – I want it to land softly and “hold” the green.

But I also know I’m no “player.” I don’t “work the ball” too often, I don’t really “cut it,” or intentionally draw or fade it with much success…So I don’t need to spend $45 on a dozen three-piece balls like the Titleist Pro-V1. Yes, I’ve narrowed it down to the $20 to $30 range for a dozen balls. That’s where I’m most comfortable – where I get a decent ball for a decent price. But there are so many options in that price range – which inevitably leaves me standing for an hour in the golf-ball section of my local sporting goods store.

To make matters worse, I just realized there are now more options for me to choose from…Options that I previously ignored when I was shopping for balls: Recycled golf balls. Most golfers intentionally overlook recycled (or refurbished) golf balls for various reasons, but my main reason was that I always heard once balls were submerged in water or out in the elements for a while, quality and distance would be hindered. But a new study done by GolfBallTest.org says otherwise. In their tests, there was virtually no difference between new and recycled balls of the same brand. This is intriguing.

After reading the white paper on the study, I picked up a dozen recycled Nike One balls at Target for $9.99 and played a few rounds with them. I have to say, I was impressed with them – impressed to the point where I will probably buy another box next season. If this study gets some publicity, it may change the golf ball industry!

But another new discovery has me ever more intrigued. There are companies out there that will actually custom fit you with a golf ball…and do it all online no less. GolfBallSelector.com touts “a mix of quantitative and qualitative measures to generate precise [golf ball] recommendations.” For just $19.95, you get a one-time fitting to match you with your balls. Interesting. You’ll find a similar site at TheRightBall.com. So there’s two ways you can look at these golf-ball-fitting sites: Either they’re a rip-off and not worth considering; Or your days of wondering what golf ball to use are over.

While one day I may fork-over the 20 bones and take the Golf Ball Selector test, I think for now I’m gonna stick to my recycled Nike balls…at least until another study comes along and shoots the GolfBallTest analysis out of the water. Until then, I am glad to report less of my life will be wasted on choosing golf balls. Hmmm, this post has me thinking – I wonder what grips I should put on my clubs for next season?

Filed Under: Golf Life Tagged With: golf balls, GolfBallSelector.com, GolfBallTest.org, Nike, Pro-V1, recycled golf balls, refurbished golf balls, Titleist, top flite, used golf balls

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