Liftwood

Liftwood is the generic name for a group of similar plant species (Lignivolucer var.) found exclusively on Mars. No close correspondence to any Terran plant family exists. Liftwood lumber is highly sought after for building hull bottoms for 'Aether Ships' known as 'cloudships' and 'flyers'.
It seems that liftwood acts more as a screen that cuts off or even repulses the effect of gravity as opposed to being 'lighter than' other substances, and that action is proportional to the area of the liftwood presented to the source of the gravity. Thus, a slat of liftwood provides less lift when it is edge-on to the direction of gravity's pull than when the slat presents its full width. 
The Middlesea Fleet is in possession of several Aether Ships-of-war which use liftwood construction with and without Cavorite enhancements.
==Further information==
* 'The Biology of Liftwood'
* 'Liftwood'
Category:Technology