[SOLVED]Extending/Making a world bigger!

This might be a complete Newbie question. But how do I increase the size /dimensions of the default newton world in OgreNewt? Is it possible?

mWorld->setWorldSize(AxisAlignedBox(-100000,-100000,-100000,100000,100000,100000));

Hasn't failed me yet. No noticeable slowdown either.

Wicked cool! Thank you HexiDave! yesss everything seems to work just A-ok. World Size is increased and newton continues animations beyond the perdefined standard limits! Works as a charm!