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Grant Saunders

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Gravity: An Architectural Constant
« on: February 22, 2015, 04:38:51 AM »
Gravity and its effect on the ball may potentially the only constant or common theme among every golf course site in the world. All sites will experience wind and other weather related influences but never consistently or uniformly from place to place or even the same site on a daily basis.

Obviously short grass and elevated surfaces make use of gravity the impact it has on a round ball but what are some other features or design principles that tend to exploit this physical presence?

Does the fact that gravitational forces will be the same all the time regardless of location allow an architect a chance to design with the knowledge that features reliant on gravity will always work and be relevant?       

A.G._Crockett

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Re: Gravity: An Architectural Constant
« Reply #1 on: February 22, 2015, 08:20:55 AM »
Gravity: Not just a good idea; it's the law.
"Golf...is usually played with the outward appearance of great dignity.  It is, nevertheless, a game of considerable passion, either of the explosive type, or that which burns inwardly and sears the soul."      Bobby Jones

John Kavanaugh

  • Karma: +0/-0
Re: Gravity: An Architectural Constant
« Reply #2 on: February 22, 2015, 08:45:51 AM »
Is gravity the same at elevation?  The ball falls less fast in Colorado then it does in Florida.

Kyle Harris

  • Karma: +0/-0
Re: Gravity: An Architectural Constant
« Reply #3 on: February 22, 2015, 09:46:51 AM »
Grant,

While the force of gravity (little g) is constant... friction loss across the surface is not.

Which leads me to wonder if it is possible to design a golf ball which effectively slows down the putting green....
http://kylewharris.com

Constantly blamed by 8-handicaps for their 7 missed 12-footers each round.

Thank you for changing the font of your posts. It makes them easier to scroll past.

Jonathan Mallard

  • Karma: +0/-0
Re: Gravity: An Architectural Constant
« Reply #4 on: February 22, 2015, 05:17:12 PM »
Is gravity the same at elevation?  The ball falls less fast in Colorado then it does in Florida.

The theoretical answer is yes.

The effective physical answer is no.

Decreases in air density which lessens buoyancy mitigate the gains.

So, at 30,000 ft (The top of Mt. Everest) While you lose 0.29% of the effects of gravity, the change in air density makes this 0.08%, or about a quarter of the gravitational effect. As the change is roughly inversely proportional to the square of the change in height, 1/3 of 30,000 or 10,000 ft, about as high as you'll ever build a golf course, that is roughly a 0.01% change in gravitational effects.

http://en.wikipedia.org/wiki/Gravity_of_Earth


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