Trees, Grain, and the Strength of Wood

[@migogmai]

Really enjoyed this lecture. I feel so much stronger in mu knowledge about wood as a living being and a material now. Thank you!

[@AdityaMehendale]

The "shear" arrows at 1:44 are off! Serious question though - if you have a beam with a square cross-section, outdoors use - what grain _orientation_ would be advisable? Radial up, Radial down, or tangential? So: /``\ or \_/ or ((( ?

[@renealvarado970]

Just started learning about wood design. Really enjoying the videos, thanks!!

[@adiliraliyev5882]

Any videos on: structure of wood grains? Also are wood cells in a trunk of a tree are different from cells in a branch?

[@structureclass2829]

Small comment but the shear arrow on bottom of square should be flipped in order to satisfy equilibrium in horizontal direction and moments, correct?

[@TanyaLairdCivil]

Wow. I need to check my drawings a bit more. You are correct!

[@90clemson]

I like the music. Makes me feel like I’m learning. Would be great to add in the sound of a chainsaw every now and then.

[@neilmenon8943]

The videos are good. But the perpendicular and parallel was a bit confusing. So the load is applied perpendicular to the longitudinal section that gives the most srength.