How do you know where half is???

Posted by Fernandez on Thursday, 14. April 2005 at 13:04 Bali Time:

In Reply to: or,,,,,,,,,,,, posted by jock on Thursday, 14. April 2005 at 11:35 Bali Time:

Question ???
If you don't know how long it "the string" is how do you know you have got to halfway to enable you to multiply this ???