Scientifically speaking, the
phenomenon called 'sound' occurs when a sound wave is received and interpreted
correctly by a receiver such as the healthy human ear. Without the
presence of a 'receiver', these waves remain as waves and a 'sound' is not
detected. When a tree falls, it makes all kind of waves (whether there is
a receiver or not) which include the human sound waves. BTW it also makes
sound waves which are outside human hearing range but which are received and
heard by animals. Similarly a deaf person cannot receive and interpret the
human sound wave.
Similar is the case with light
waves and our ability to see.
If we try to extend the thinking
further, we reach the Zen Buddhism term: "The sound of one hand
clapping".
I think if we look at the
phenomenon in these lights, we may understand better.
RB
----- Original Message -----
Sent: Sunday, August 27, 2006 8:46
PM
Subject: [Assam] If a tree falls in the
forest and there is nobody around.......
I hope you all like this, in view of all the trees falling in the
neighborhood and our not hearing a sound. Mind you it's a spoof. ![]()
Dilip
================================================================
If a tree
falls in the forest and there is nobody around does it make a
sound?
YES!--- but it's not quite what you
might think.
![]() Scientists have been dealing with the problem of
natural tree falls (and the sound they make--or don't make) for quite
some time and have drawn some rather surprising conclusions.
If a tree falls and there is a person around the sound is easily
recognized.
If a tree falls in the forest and there is nobody nearby, the sound
that it makes is very different and often not recognized as the sound of
a tree falling.
Either way, there is a sound.
Even though plants do not show any changes to the naked (or lensed)
eye, when a human is in their presence systemic biological changes have
been discovered that have grave effects on plant life when a person is
within 300 meters. This effect is called "human stress syndrome".
Apparently, when a tree is about to fall, if it senses a human
nearby the biological stresses of human presence cause the cell walls in
the plant to become brittle and it is the cell brittleness responsible
for the familiar sound we know as that of a tree fall. The cell
brittleness also has significant effects to the quality of the lumber,
making it much more suitable for use in construction (see below).
Through the miracle of recording tape, we are able to provide a
sound recording of an actual tree falling without human presence.
CLICK
HERE to hear what a tree
falling in the forest when there is nobody around to hear it sounds
like. |
|
Ultraviolet gas emitted by human stressed
trees |
|
All
trees, except the Ohio Buckeye tree, when in the presence of
humans, emit a faint cloud of ultraviolet gasses.
These UV gasses are visible when filmed with a special
camera and are convincing proof of tree stress when humans
are present.
The photos at left show the various amounts of UV
gasses being emitted as a human walks nearby. Lumberjacks
are familiar with this and know that it suggests that the
tree they are working with will yield good useable wood.
Should you be walking in a forest and happen to see
this type of gaseous emanation from a nearby tree, you
should take cover immediately-- as the tree may fall on
you! | | |
![]() |
Lumber Effects of "Human Stress Syndrome"
Building codes
throughout the US require that all lumber used in construction be
obtained from properly human-stressed trees. There is good reason
for this.
![]() Lumber from trees that fell without the human stress
factor are known to fail prematurely and have numerous
imperfections. The photo at left is of a structure built (only
three years ago) out of lumber that was found on the forest
floor.
It is easy for the casual observer to discover the difference
between human-stressed lumber and naturally occurring fallen tree
lumber.
![]() On a visit to your local lumberyard you will note that
the coloring of the wood is relatively uniform and that the grain lines
are clearly visible. The wood is also hard to the touch and
dry. Some species of human-stressed trees create lumber with a
greenish color (often referred to as "green lumber").
Compare the lumberyard human-stressed tree wood with that you find
lying about on the floor of a nearby forest.
![]() The non-human-stressed wood (naturally falling tree
lumber) is almost always rather soft and wet. In many cases you
will find splotches of various colors and sections of the wood that
appear more like a sponge (one of the best sources of natural sponge is
from fallen trees). If you try to build a structure out of this
wood, you are in for a bad surprise when your building soon
collapses. |
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