#### golfdonkey

##### Assistant Pro

"If you put a rope around the 25,000-mile circumference of the Earth and then placed another rope three feet higher, how much longer would the second rope be?"

I know the answer was surprising - can anybody help?

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- Thread starter golfdonkey
- Start date

"If you put a rope around the 25,000-mile circumference of the Earth and then placed another rope three feet higher, how much longer would the second rope be?"

I know the answer was surprising - can anybody help?

WHO CARES?!the guy ate volcanic dust, you shouldn't listen to any thing he had to say!

The old "spike mark" excuse seems a bit predictable by comparison

bit like the classic one to putt your opponent off... do you breathe in or out on your backswing?

guaranteed to have them struggling with their swing for a hole or two

Length of a rope around the world = 2*pi*r where r is the radius of the earth.

Length of rope 3 feet above the surface of the earth = 2*pi*(r+3) = 2*pi*r + 6*pi

The difference between the 2 is therefore (2*pi*r + 6*pi) - 2*pi*r = 6*pi

Since pi is about 3.14, this means that the rope 3 feet above the surface is about 18 feet 10 inches longer than the one on the surface. Nuttin to it.

Excellent! Now I can bore all my friends, sorry friend, at the chess club.

Thats enough about laura davies for one day! And enough about Jim Furyks fluid for that matter!!

2*pi*(r+3) - 2*pi*r = 6*pi = 18' 10" or so.

The 2 solutions are basically the same...it's just you put the actual numbers in.

I think it's all that talk of "Pi" which I'm sadly going to have to give up this year as part of a self-enforced weight loss campaign