The technique they used to create this 'super wood' is a varied form of nanotechnology compression, forcing the cellulose bonds into very close proximity within the layers, making it basically like watered steel, but at a sub-micro level. Swords made of wood, indeed!
Added: Source material of the process: Processing Bulk wood into high dense structure
We rest Wood Stronger Than Steel to share learning from old times:
Today is: 16th October (GMT), in history on the 16th of October, 1926 AD the following event happened:
Mohammed Nadir Khan begins coup in Afghanistan, 1200 killed