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Hii....Thank you for these videos. Which standards and what are specimen size you follows

thank a lot for the lecture!

Please it becomes difficult to see what you’ve written when you’re standing right behind it, I think the colors make it difficult

Waooo thank you!

Is it possible to minimize distortion by adding weight to the stack (along with following a drying schedule)?

Is there a source for these Tables that you can recommend?

thank you very much.

How sir you write

You're not giving any information in this video???? Of course you're going to crush it but what everyone wants to know is how much pressure it took to crush it....

Good idea

ver understandable and good explanation ! thanks

Very good video :)

Thank you

who still here in 2024 spinning this banger

Humans have to get better at building design. Better design equals more valued use, equals much longer lifespan. Returning a piece of timber into a secondary, future structure will never happen, except where money and time are in abundance. The issues are legion.

is this a different process from what we know as Kraft? this uses a digester as well?

is he writing backwards?

Thank you so much professor

thank for the explanation Prof 😊

thanks doc

these videos are so cool and simple to understand... thank you so much from an italian forestry student!

Brilliant explanation, thanks.

Nice! Thank you. ... How is it that you write so easily and neatly backwards??

What happens when the green wood dries in place? Can the connections become loose if the pegs shrink for instance? I've built something from green wood with screws once and the connections got loose when it dried - had to re-tighten the screws

P r o m o s m

I can't see what you are writing but your lectures seems interesting, please improvement on your background colour

why does reagent go into the void directly without passing the cell wall?

Genius. I am trying to make a straight arrow. Maple seems to work. I clamp it down, heat it and hope the lignin has got stuck in a new form as it cools down. From what I can tell you get some sort of 50/60% change. I am aware that it is the squeezing you can do with wood, and not the stretching.

bad design with Wood is annoying. I agree

Trees as carbon storage is nonsense

Cool

Thanks for this series, just what I was looking for. Needed to upgrade my wood knowledge, and this was on the point, very clear and no fuss, with the possibility to dive into more technical/complicated theory where one feel like it. 🙏🙏

Is he effortlessly writing in mirrored text?

I have watched your series on wood drying but noticed how similar your lectures are to all the other lectures and books. Clearly very few are made by craftsmen - you dont mention the difference between air dried and kiln dried in use - nor the difference in use between steam kilned, dehumidified, vacuum and other methods - furniture in modern houses is almost entirely made from steam kilned wood because otherwise it falls to bits why? Elm is well known to be a very unstable wood even when steam kilned, so why was Ercolani able to make table tops with virtually no undercarriage in elm using boards over 20 inches wide - academically perfect, practically?

When i search youtube for videos on wood, I wasnt expecting this video to exist. Glad I searched it.

dude is writing backwards? or is this video flipped?

This channel is amazing. can you explain " indian sandalwood " .. why does the wood give off red color when exposed to alcohol ?

😊

The Kraft process is also called the sulphate process , it consist of two chemicals ,Naso4 and sodium hydroxide n its a very alkaline process probably around 11. You get the wood chips n mixed them with a white liquor which is a mixture of those two chemicals and them you heat it up in a digester under pressure. Remove the valve , that process releases the fibres from the chips . So you do a series of screening pressing process and we get what is called the Black Liquor , and that black liquor is the remains of those chemicals and lignin. We remove Lignin from the wood and separate it from the fibre cos Lignin is brown and we need white paper . This liquor goes to the recovery boiler , so there's a lot of energy stored in this black liquor n can be used to power the whole process . We have to use a bleaching process to get the white paper

Is it me or was he writing all that backwards perfectly.

just watched all your pulp and paper videos, incredibly helpful series, thanks a lot!

May I ask how is the professor writing on the back and it seems not flipped to us

What he refers to as viscous behavior is typically called plastic deformation, is it not?

I'm trying to understand whether or not the cambium layer gets stripped when the bark is peeled off. Some dogs stripped the bark off my maple tree from the ground up, about 4 ft from the bottom. They did this about 80-85% of the way around the 10 1/2 foot tall tree. When I see diagrams, and see descriptions like this, I think maybe they only stripped off the outer layer of bark. But an arborist told me that all 3 layers came off as they are all paper thin together. Did the dogs really rip off the cambium layer? If not, can I keep it wet enough to heal over? Or did they leave the cambium layer, but the tree will die anyways because it will dry up? It's fine to draw pictures, but if the Arborist is correct, that they ripped all 3 layers off (outer bark, inner bark, and cambium), then all the drawings of the layers of bark are entirely misleading about the bark, and what we call bark is far more than just bark when it's peeled off the tree. I would like to see a piece of bark from a younger tree showing all three layers (zoomed in). An image of the actual plant would be more informative with regard to scale than a crayon drawing that exagerates the depth of the layers. Just my opinion... but I'm still just trying to figure out if my arborist was well informed and it's so hard to verify what he's told me when no one else is even talking about this. It's frustrating to have someone look at a tree and they say, it's a total loss, now give me $140. It's been a week, 1/2 the tree is yellowing, but the leaves are not drooping like they lack water... but yellowing like they lack some iron or other nutrients. It's probably going to die, or at least half of the tree will die. That's what I'm trying to figure out.

Is this guy writing backwards?

Im colorblind and this is a nightmare to watch

Wet wood aint stiff, but it is certainly tough!

Why they always say that you make paper out from the pulp? Paper is mostly made out from mechanical wood process, not cooking process. Pulp is used only for addition in paper making to increase strength. Pulp is used for so many different things other than paper.

These tests should be conducted with some proper timber like Mountain Ash (Eucalyptus Regnans) or even a Redgum (Eucalyptus Camaldulensis) or Ironbark (Eucalyptus Tricarpa) . Northern hemisphere trees that grow in medium-high rainfall, cold climates are typically significantly softer, lighter and weaker than dry climate hardwoods.

Great videos as always