You just need to subtractthe portion of the universe that does not contain the piece of string from the entire universe, to give you the length of the piece of string.
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Barbarossa is not my real name,
Fri 19 Dec 2008, 17:54,
archived)
No, that would give you........ the four dimensional volume of the string (presumably in secondcubicmetres, if you were doing it in metric).
(,
Fri 19 Dec 2008, 17:56,
archived)
From there it's just a simple matter of higher dimensional integrationof the hyperspherical space-time footprint of the string, to give you its empirical length.
I had assumed that step was basically too trivial to mention in the above method.
(I had assumed that step was basically too trivial to mention in the above method.
Barbarossa is not my real name,
Fri 19 Dec 2008, 17:59,
archived)
Which leaves us the simple matter of measuring the universe
Due to the quasi-reciprocal nature of space time, measuring the external universe except the piece of string will also involve measuring the measuring device, but since space time is curved, this should pose no problem to oh god it's friday I can't be bothered have a good weekend.