i was thinking "mossy" the other day, and came up with this thought...
an epiphany--
the moss grows on the north side of a tree, due to that side of the tree being the coolest( in the shade), this also affects the tree...if the tree is viewed as a race track, with many lanes, then we see that the inside edge( track in a turn), is shorter, this shows why the cooler side of the trunk, and branches of a tree( or plant), are made shorter( causing a bend), from shrinkage, on one side of the trunk( or branch), and the expansion occurring on the other side of the plant/tree--
note--
it seems counter to common knowledge at first, that the heated side of a tree/plant would expand, and the cooler side would contract...since most auto repair persons know that heat expands metals...yet, we are talking about a live substance, and here lies the difference in reactions, to the same natural force...when wood, or a plant, is heated, it shrinks...due to de-hydration effects within the substance...unlike the reaction of metal to exposure to heat...wood bends in the direction of the heat source, since the closest side to the heat contracts, from the dehydration of the fibers that the wood is composed of( after some of it's moisture is evaporated)...and so, a plant tracks the sun, due to the side exposed to the heat-source, shrinking, on that side only...
summary--
in this way, the tree tracks the solar rays of the sun, due to thermal reactions by the branches, and trunk, exposed to the environment the plant/tree resides...
best wishes, john kruschke--
an epiphany--
the moss grows on the north side of a tree, due to that side of the tree being the coolest( in the shade), this also affects the tree...if the tree is viewed as a race track, with many lanes, then we see that the inside edge( track in a turn), is shorter, this shows why the cooler side of the trunk, and branches of a tree( or plant), are made shorter( causing a bend), from shrinkage, on one side of the trunk( or branch), and the expansion occurring on the other side of the plant/tree--
note--
it seems counter to common knowledge at first, that the heated side of a tree/plant would expand, and the cooler side would contract...since most auto repair persons know that heat expands metals...yet, we are talking about a live substance, and here lies the difference in reactions, to the same natural force...when wood, or a plant, is heated, it shrinks...due to de-hydration effects within the substance...unlike the reaction of metal to exposure to heat...wood bends in the direction of the heat source, since the closest side to the heat contracts, from the dehydration of the fibers that the wood is composed of( after some of it's moisture is evaporated)...and so, a plant tracks the sun, due to the side exposed to the heat-source, shrinking, on that side only...
summary--
in this way, the tree tracks the solar rays of the sun, due to thermal reactions by the branches, and trunk, exposed to the environment the plant/tree resides...
best wishes, john kruschke--
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