The heft and feel of a well-worn handle,
The sight of shavings that curl from a blade;
The logs in the wood pile, the sentiment of huge beams in an old-fashioned house;
The smell of fresh cut timber and the pungent fragrance of burning leaves;
The crackle of kindling and the hiss of burning logs.
Abundant to all the needs of man, how poor the world would be
Without wood.

Everard Hinrichs, quoted by Eric Sloane in A Reverence for Wood


Friday, December 28, 2012

Wood Science 101 (7) - Water Movement in a Tree

Well, now we a tree sucks up all that water...and what happens to it.

While focusing on the physical process of water movement, this intelligent young man mentioned that this process is what biologists call "transpiration".  Wikipedia explains transpiration in excellent and concise detail and complements the video nicely.

My favorite part of the video comes at the 6:00 mark; we get to watch the moment when he "gets it."

This video is a great demonstration on how the process of education is being changed by technology and social networks.  Give students a challenge, a computer, internet access, a network of smart friends (like Jeff Wartluft, who shared this video) and teachers to chat with. The education will take care of itself, to the degree of motivation and capability of the challengers and the challenged.

Aren't we all students now, really?

1 comment:

Felicia Rodriguez said...

This was an excellent video and i will refer many of my customers to it. I work for a manufacturer(Injectidry Systems Inc) that makes hardwood floor drying equipment for water damage restoration. Our system works by applying suction to the surface of hardwood floors to remove excess moisture in a liquid and vapor form. Grasping the sicence behind "Advanced Drying" can be very hard for many of our customers, in fact we have a 3day class on it, but hopefully this video will give them a foundation to relate to. Understanding the movement of moisture in a tree in it's natural environment may help them under stand a similar process in a controlled environment. If you have any suggestions of related videos it would be greatly appreciated. Thank you. -Felicia