Janka wood hardness scale - photo

[Dragonhand]

Janka wood hardness scale.




Previously:

Wood under an electron microscope - photos
Linear friction welding of wood - video
Hot embossing of wood - GIF
Vacuum chamber for stabilizing wood - video
Screw vs. purpleheart wood - GIF

https://www.hitchcockandking.co.uk/h...t-woods-world/

[Drew1966]

https://www.hitchcockandking.co.uk/h...t-woods-world/

Ironwood is hard, but not as hard as Australian Desert Oak. Desert oak will break your axe head and take the teeth off your chainsaw chain. I’m not kidding, when Europeans first saw the aboriginals wood weapons they laughed, until they found out just how tough said wood is.