How long is a piece of string? click here

Often we are told by our state government and its leader Mike Rann (Premier) that we are on the cusp of a mining boon, or is it boom?
Anyway, I wonder if a "cusp" is the same length as a piece of string!

Wikepedia describe the length of a piece of string as 'Really long' and as a matter of fact, conclude that its Twice the length from the middle to the end.
Or you can simply click the header to find how long is a piece of string.

But frankly I think it is the same length as a mining cusp.