The relative importance of density, acoustic velocity, and microfibril angle (MFA) for the prediction of the stiffness (MOE) and strength (MOR) has not been well established for Douglas-fir (Pseudotsuga menziesii). MOE and MOR of small clear specimens of mature wood were better predicted by density and velocity than by either...
Many woods are impossible to tell
apart without using a microscope.
Sometimes, a great deal of
knowledge and expensive laboratory equipment
is needed to identify a wood species. On the
other hand, you don’t have to be an expert or
have specialized equipment to identify many
species. In fact, an...