Thanks Danny, yes I did try it, and got the results which lead me to believe that my hypothesis was correct. However, I will have another go and see if there is a difference.
Have a good trip!
Here are results:
Search 1 - "one week", produced 28 hits with oldest post being "Is Fujairah Sustainable" on 14/7/03 @ 07:21.
Search 2 - "two weeks", produced 49 hits, but now the "Fujairah" post is position 37, with 36 "newer" ones. So why did the "one week" search not produce 37 hits?
Do the same with "parapunter". "One week" gives 15 hits, with oldest "Exquisite shops" at 09:37 on 14/7/03. "two weeks" gives 28 hits, but now the "Exquisite shops" post is at position 17.