No, but when someone suggested they wanted to build a 45 Tesla magnet, I’d have expected someone to say, “What for?”.
'Cause it will go up to eleven!
[QUOTE=ivan astikov]
So, how big a magnet do I need, to pull an ocean liner into my floating island?
[/QUOTE]
Depends on how close you are planning to get the magnet to the ship. If you are getting it really close then you probably won’t need all that large a magnet (better have a strong chain and a decent tug boat though). If you are thinking to grab a passing ship from a long distance (say more than a few yards) then you can’t make a magnet that big. Magnetism doesn’t work very well at a distance.
-XT
Bwahahahahahahahaha…Oh! Damn!
Ah well…whooshed again. 
-XT
hahaha. Maybe one day it’ll pull the moon closer ala Bruce Almighty.