I remember getting confused by the same thing too! I think I looked in the dictionary, and both quadra and tetra mean 'four' but one is from greek roots and the other from latin?? is that correct, or am I just talking rubbish? :o) "Martin <martincosgrove@...>" <martincosgrove@...> wrote:I'm sorry! I didn't realize that the Quadrapolar and Tetrapolar magnets were one in the same... it's like learning another language sometimes!!! Thanks for clearing that up for me, I felt silly asking such a basic question but if I don't get these things clear now, I'm sure it won't do me any favours in the future :-) Martin Yahoo! Groups SponsorADVERTISEMENT To unsubscribe from this group, send an email to: BardonPraxis-unsubscribe@yahoogroups.com Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. --------------------------------- With Yahoo! Mail you can get a bigger mailbox -- choose a size that fits your needs [Non-text portions of this message have been removed]