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billyandtherockets
do trees defy gravity? or are they falling to the huge mass of the sun? laugh.gif
prometheus
You defy gravity when you get out of bed.
uaafanblog
QUOTE (prometheus+Apr 27 2009, 01:56 PM)
You defy gravity when you get out of bed.

I'm thinking he defies more than gravity ...
Argyll
QUOTE (Cusa+Apr 29 2009, 08:47 PM)
I don't know. I am stumped.

Don't settle for I don't know, this is a perfect opportunity for you to turn over a new leaf and branch out in your studies. If it doesn't sap your strength too much, maybe you'll be able to get to the root of the problem.


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NoCleverName
QUOTE (Argyll+Apr 29 2009, 07:04 PM)
Don't settle for I don't know, this is a perfect opportunity for you to turn over a new leaf and branch out in your studies. If it doesn't sap your strength too much, maybe you'll be able to get to the root of the problem.


biggrin.gif

I'd rather he would permanently log-out.
mielkman
QUOTE (prometheus+Apr 27 2009, 01:56 PM)
You defy gravity when you get out of bed.

I defy gravity before I get out of bed!
uaafanblog
Best "tree pun" thread EVaH
billyandtherockets
QUOTE (prometheus+Apr 27 2009, 01:56 PM)
You defy gravity when you get out of bed.

i guess no one knows the answer
buttershug
It depends on what you mean by defy gravity.
If you mean do they exhibit behaviour that indicates no gravity? Then no.

If you mean they work against gravity, then yes.

How do you mean defy?

edit when I first read the title I thought he might be talking about trees getting water up to their top levels.

you can't suck water up a straw longer than aboubt 32 feet. (something like that)
AlexG
Anything which doesn't fall down defies gravity.

When a magnet picks up a paper clip, it defies gravity.

billyandtherockets
QUOTE (AlexG+Jun 15 2009, 10:17 PM)
Anything which doesn't fall down defies gravity.

When a magnet picks up a paper clip, it defies gravity.

[B] so trees do defy gravity.........wonder which direction they would grow in a sphere in weightless space
billyandtherockets
QUOTE (buttershug+Jun 15 2009, 09:59 PM)
It depends on what you mean by defy gravity.
If you mean do they exhibit behaviour that indicates no gravity? Then no.

If you mean they work against gravity, then yes.

How do you mean defy?

edit when I first read the title I thought he might be talking about trees getting water up to their top levels.

you can't suck water up a straw longer than aboubt 32 feet. (something like that)

yes working against gravity....a mystery
Trout
QUOTE (billyandtherockets+Jun 15 2009, 10:31 PM)
[B] so trees do defy gravity.........wonder which direction they would grow in a sphere in weightless space

The direction where the light comes from :-)
Meem
QUOTE
i guess no one knows the answer


Sounds like magpies guess what the mind is game, imho.
buttershug
QUOTE (billyandtherockets+Jun 15 2009, 10:34 PM)
yes working against gravity....a mystery

It only has to be stronger than gravity.
no biggie no mystery.
AlexG
And gravity is exceptionally weak. There's just so much of it.
Bummerstinky
Not if you cut them down.
buttershug
QUOTE (Bummerstinky+Jul 12 2009, 10:51 PM)
Not if you cut them down.

unless you cut them "down" underwater.
John Galt
I have checked through five university level physics text books, consulted wikipedia and speed read eighty potentially relevant research papers. It appears that defy is not a term used in physics. Perhaps you should consult a Feng Shui master, or a Druid.
billyandtherockets
QUOTE (John Galt+Jul 13 2009, 12:04 AM)
I have checked through five university level physics text books, consulted wikipedia and speed read eighty potentially relevant research papers. It appears that defy is not a term used in physics. Perhaps you should consult a Feng Shui master, or a Druid.

hardy har har
billyandtherockets
QUOTE (Bummerstinky+Jul 12 2009, 10:51 PM)
Not if you cut them down.

which some one did for Christopher Columbus ey?
billyandtherockets
QUOTE (buttershug+Jul 12 2009, 11:18 PM)
unless you cut them "down" underwater.

what tool would you use?
flossdaily
I just chopped a tree at it's base. I pushed it upwards towards the sky, and it floated until I couldn't see it anymore.

I'm very glad you called this to my attention. I'm going to publish.
billyandtherockets
QUOTE (AlexG+Jun 16 2009, 12:52 AM)
And gravity is exceptionally weak. There's just so much of it.

how much is there?
billyandtherockets
QUOTE (flossdaily+Jul 13 2009, 05:58 PM)
I just chopped a tree at it's base. I pushed it upwards towards the sky, and it floated until I couldn't see it anymore.

I'm very glad you called this to my attention. I'm going to publish.

hmmmmm must have been caused either by a big black hole or a lodged collapsed star on the moon
flyingbuttressman
QUOTE (billyandtherockets+Jul 13 2009, 12:59 PM)
how much is there?

Five hot dogs worth. If you take into account the universal relish problem, then four hot dogs.
Andrerw K Fletcher
The question should be:

How are trees making use of gravity?
billyandtherockets
QUOTE (Andrerw K Fletcher+Oct 15 2009, 06:14 PM)
The question should be:

How are trees making use of gravity?

now that i think of it...trees may have more force than gravity and just punch thru
\Has anyone ever measured the footpound strength or torque of a growing tree?
Andrerw K Fletcher
Attempts have been made to measure the tension in the sap using a pressure bomb, see Scholander and H.T.Hammel, I believe they shot down branches from tall trees and tried to capture the tension measurements but the accuracy of which was always going to be flawed given the time involved for the branches to hit the floor and become coupled up to the measuring device.

Zimmerman paper has some references to the problem

My point is instead of looking at the problem from our own standpoint, why not look at the problem from the trees?

Deal with the fluid mechanics involved in the ascent of sap in tall trees and then we can understand how trees are not struggling to overcome gravity as in your very worthy question but in why they bother at all to grow vertical if they are trying to overcome gravity?

Surely they would grow laterally unless gravity was useful to the movement of fluids?

Andrew
billyandtherockets
QUOTE (buttershug+Jun 16 2009, 12:38 AM)
It only has to be stronger than gravity.
no biggie no mystery.

[B]So when NEWTON observed the apple fall and used geometry to calculate his ideas on gravity...perhaps his second question could have been.........how much force is the tree using to OVERCOME gravity? ON Earth? and in space in a vacuum (providing the tree suddenty makes an atmosphere in the Vacuum). So I am wondering has anyone ever calculated how much force a tree exerts to overcome gravity to grow?
Which leads me to wonder how our planets are able to remain in the ecliptic (without wandering up and below the ecliptic). AND to wonder if other solar systems also have an ecliptic plane AND to wonder if solar systems, and maybe all galaxies, are actually falling in unison in one direction (or falling to the nearest gravity field stronger than itself...which might explain red and blue shifted galaxies....red ones being sucked away from our point of view and blue ones being sucked toward our point of view. (temporarily disregarding Hawikings statement that Red shifted galaxies are high in mass causing a downshift in light)

As the thing here says..."who knows what will become of your ideas in 100 years from now)
light in the tunnel
QUOTE (Andrerw K Fletcher+Oct 16 2009, 06:25 PM)
Deal with the fluid mechanics involved in the ascent of sap in tall trees and then we can understand how trees are not struggling to overcome gravity as in your very worthy question but in why they bother at all to grow vertical if they are trying to overcome gravity?

Surely they would grow laterally unless gravity was useful to the movement of fluids?

Philosopher George Bataille believed that trees grow upward to increase the amount of space available for plant-growth. He believe that life expands and creates new space until it evolves to the point of creating space-destroying (consuming) organisms. The cryptic quote from the book, Accursed Share is:

the sexual act is in time what the tiger is in space.

Bataille would probably celebrate tree-cutting as making space for more trees to grow, or maybe he would denounce it as a lost opportunity for termites and woodpeckers to do their work.
billyandtherockets
QUOTE (light in the tunnel+Oct 20 2009, 09:32 PM)
Philosopher George Bataille believed that trees grow upward to increase the amount of space available for plant-growth. He believe that life expands and creates new space until it evolves to the point of creating space-destroying (consuming) organisms. The cryptic quote from the book, Accursed Share is:

the sexual act is in time what the tiger is in space.

Bataille would probably celebrate tree-cutting as making space for more trees to grow, or maybe he would denounce it as a lost opportunity for termites and woodpeckers to do their work.

I think the question is....just how much pressure does a tree exert to overcome gravity...another way to measure gravity perhaps?
flyingbuttressman
QUOTE (billyandtherockets+Oct 23 2009, 12:19 PM)
I think the question is....just how much pressure does a tree exert to overcome gravity...another way to measure gravity perhaps?

Every action must have an equal and opposite reaction.

Weigh the tree. Find its mass (kg). Multiply the mass by 9.8m/s^2 to find the downward (and upward) force (Newtons).
Geoff Mollusc
QUOTE (flyingbuttressman+Oct 23 2009, 04:22 PM)
Every action must have an equal and opposite reaction.


Rather like; when the universe spawned a stupendously intelligent genius of IQ:27 X 10^incredibly large number .... it also supplied us with billyandtherockets.


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