Calculate the height of the tortoise

[Arthur Wedge]

Oh thought it was Ranger that left or was that the same person

Plymouth fan

 

[Beezerk]

I'll miss him.

Don't worry, he'll be back

 

[rulie]

I said 2pi (in what ever unit you are using) as the extra length required in the rope for the rope to be uniformly 1 unit above the circumference of the circular object, in this case the Earth.
So for the rope to be 1m above the earth all the way around (assuming it to be perfectly circular) it only needs to be 6.28… metres longer that one that is a snug fit.

Astonishing when the Earth has a circumference of about 40 000 000 metres.

This number holds true for circles of all sizes.

Based on the information in the original question (where the diameter of the earth was provided), I would say the answer is one pi.
Circumference of circle is pi D (obviously equivalent to 2pi(r).

 

[backwoodsman]

Based on the information in the original question (where the diameter of the earth was provided), I would say the answer is one pi.
Circumference of circle is pi D (obviously equivalent to 2pi(r).

Yes, but the  diameter of the circle has increased by 2m (not 1m)

 

[KenL]

In this famous question, the size of the circle is irrelevant. In order for the rope to be 1m above the surface the rope has to be 2pi metres longer.

 

[rulefan]

6.28318m approximately

 

[Voyager EMH]

The difference between 2πr and 2π(r+1)

2π(r+1) - 2πr = 2πr + 2π - 2πr = 2π

 

[rulie]

Okay, got it. Thanks.

 

[Imurg]

I want to know what flavour this pi is........

 

[GreiginFife]

I want to know what flavour this pi is........

Raspberry apparently