Go Back   Science Forums Biology Forum Molecular Biology Forum Physics Chemistry Forum > General Science Forums > Physics Forum
Register Search Today's Posts Mark Forums Read

Physics Forum Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.

Capilllary action

Capilllary action - Physics Forum

Capilllary action - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.

LinkBack Thread Tools Display Modes
Old 12-05-2005, 12:16 PM
Posts: n/a
Default Capilllary action

Using capillary action will water rise against the gravitational
forces if so how high will it rise. any comments about this are
Reply With Quote
Old 12-05-2005, 01:09 PM
N:dlzc D:aol T:com \(dlzc\)
Posts: n/a
Default Capilllary action

Dear nick:

"nick" <[Only registered users see links. ]> wrote in message
news:[Only registered users see links. ]...

Capillary action uses the meniscus, the surface tension of water
and its affinity for certain materials, to pull a "vacuum" of
sorts. The hardest vacuum at the surface of the Earth (not when
a hurricane is occuring) will lift water about 32 feet. Trees
manage to do this in stages, drawing water and nutrients up a few
hundred feet.

[Only registered users see links. ]
.... down to "hydraulic-limitation hypothesis"

David A. Smith

Reply With Quote
Old 12-08-2005, 10:01 AM
H. Dziardziel
Posts: n/a
Default Capilllary action

On Mon, 5 Dec 2005 06:09:22 -0700, "N:dlzc D:aol T:com \(dlzc\)"
<N: dlzc1 D:cox T:[Only registered users see links. ]> wrote:

[Only registered users see links. ]
How Trees Lift Water
2>The cohesion theory
According to this theory, water is actually lifted up trees from
above, using the power of the sun; it is pulled up under tension
as the sun evaporates water from the leaves. When first suggested
in 1894 this theory was greeted by disbelief, but since then a
large amount of evidence has been found to support it. For a
start, it has been shown that if water is held in a narrow pipe it
can actually withstand large stretching forces without breaking,
just like an elastic band. The water's strength is due to the
cohesion between its molecules. Experiments have shown that the
cohesive strength of water can hold up a column of fluid nearly
three kilometres high.

Reply With Quote

action , capilllary

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
johnreed take 1A - modified june 6, 2006 johnlawrencereedjr Physics Forum 0 07-24-2006 09:45 PM
johnreed take 1A - Modified June 6,2006 johnlawrencereedjr Physics Forum 2 07-18-2006 09:20 PM
johnreed Take 1A - modified June 6, 2006 johnlawrencereedjr Physics Forum 14 07-13-2006 10:11 PM
Qi: Standard Model Extension or Fifth Force? cinquirer Physics Forum 88 11-21-2003 10:45 PM
Turning Lead into 10k Gold: Is Modern Alchemy Dead ? ( Can We Sink the National Debt with $100 created 10k gold coins ? ) rev dan izzo Chemistry Forum 0 09-28-2003 10:43 PM

All times are GMT. The time now is 10:26 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright 2005 - 2012 Molecular Station | All Rights Reserved
Page generated in 0.14203 seconds with 16 queries