Gary,,
You Knitpicker you--at least he incorporated some good ideas Some
credit for the poor fellow! Thanks for the history.
Geoff (*smile*)
So Merlin loco works knew how to
do it almost 20 yrs ago!
I wouldn't think I would bestow credit on Tom Cooper aka Mr. Merlin. Most
likely it was
Hi,
To my knowledge, the last loco Tom Cooper marketed in America was based on
the Barclay Locomotive Works Aileen. By coincidence, Mr. Andrew Barclay,
founder of said locoworks in Kilmarnock(sp) has a grandson living in the
states. He visited me at The Depot today Andy and I have been friends
Thanks Walt,
Very interesting-I like the description of your Cooper Aileen. My Hunslet
cost $500 new, it is powerful too--a 2-6-2, and long running. Has
required some repairs--my fault! --I like the description of your Cooper
Aileen.
The Scotch? I have a bottle of 10yr old Glenmorangie
Has anyone considered using plastic in lieu of glass? In one of our biology
lab experiments we have our students measure water in a glass graduated
cylinder and then repeat the measurement in a plastic (Nalgene,TM) graduated
cylinder. With glass you need to read the bottom of the curve, called
Since this is a live steam list, I also have to mention Wick oilers which
work by capillarity.
Have a pot of oil with a wick hanging down into the oil.
Lead the wick up and over the side of the pot into another pot, and it will
siphon the oil over to the other pot.
Bearings have been oiled
Harry,
Nope. I wasn't yanking your chain. I actually thought that perhaps someone
in the architectural field might have a need to outsource such a service on
occasion for load bearing walls, earthquake and wind resistance, etc.
I don't know of anyone with FEA software either, but I'll see if
So Merlin loco works knew how to
do it almost 20 yrs ago!
I wouldn't think I would bestow credit on Tom Cooper aka Mr. Merlin. Most
likely it was one of the Becks that he was converting at the time. These
were cataloged as Merlin Beck Engineering Ltd. one of which was called
Maestro. A clear
Isn't this how sap in a tree works ?
Peter.
--
From: [EMAIL PROTECTED]
To: Multiple recipients of sslivesteam [EMAIL PROTECTED]
Subject: Capillarity
Date: Tuesday, May 29, 2001 9:56 PM
Hi,
How many people remember the classic demonstration of capillarity used in
almost all
At 11:15 AM 5/30/01 -0400, you wrote:
Isn't this how sap in a tree works ?
Peter.
Peter,
Supposedly. I went looking for good, meaty information of behavior of
capillary action, and possibly information with which to predict it (I
found neither), but what I did find is that now the
.
--
From: Harry Wade [EMAIL PROTECTED]
To: Multiple recipients of sslivesteam [EMAIL PROTECTED]
Subject: Re: Capillarity
Date: Wednesday, May 30, 2001 11:28 AM
At 11:15 AM 5/30/01 -0400, you wrote:
Isn't this how sap in a tree works ?
Peter.
Peter,
Supposedly. I went looking for good
At 12:23 PM 5/30/01 -0400, you wrote:
Something's not right here !!!
Peter.
Sorry Peter, I'm well past my point of making educated guesses, at
least those which I'd put in print. I agree that it's logical that some
component of atmospheric pressure is involved, or so it would seem to me,
Partially, but not entirely. There are many trees that are much taller than
the capillary push/pull will overcome. I haven't been into this discussion
for over 40 years, so I'm no where up to date on the latest theory.does
turgor pressure ring any bells? Not to be confused with tumesc#$@.
Harry,
Do you know anyone with Finite Element Analysis experience and software? I'm
still not sure that FEA would even help in this situation.
There is a web page (I have it book marked somewhere) that shows an FEA model
of a partitioned room having saturated steam introduced at one point
At 01:48 PM 5/30/01 -0500, you wrote:
Harry,
Do you know anyone with Finite Element Analysis experience and software?
OK I've admitted I don't know anything about this, now you're just
yanking my chain aren't you? :-) But to answer your question, no.
hw
many people remember the classic demonstration of capillarity used in almost
all phys/chem classes? Basically an open water surface with a circular plate that had
different size holes drilled in it to accept
different sizes of glass tubing.
Well, capillarity is OK.
It's what happens when a liquid wets a surface. And wetting means that the
molecules of water and glass attract each other, so that the water climbs a
distance up the glass, only limited by how much weight of water the
surface tension force can lift. It varies from one
, but it is not the primary force..
Peter Trounce wrote:
Isn't this how sap in a tree works ?
Peter.
From: [EMAIL PROTECTED]
How many people remember the classic demonstration of capillarity used in almost
all phys/chem classes? Basically an open water surface with a circular plate that had
different size
Vacuum. The water evaporating out of the leaf creates a partial
pressure that draws up additional liquid to replace it. I don't
remember all the nitty-gritty details, but if you know one you can ask a
horticulturist.
Peter Trounce wrote:
Chris,
Fair enough, but after the sap in the leaf
recipients of sslivesteam [EMAIL PROTECTED]
Subject: Re: Capillarity
Date: Wednesday, May 30, 2001 3:49 PM
No. As I recall, sap is primarily drawn up by the evaporation of water
through the leaves. There may be some added benefit due to capillary
action as well, but it is not the primary
Loverley, Chris wrote:
No. As I recall, sap is primarily drawn up by the evaporation of water
through the leaves. There may be some added benefit due to capillary
action as well, but it is not the primary force..
Peter wrote:
Fair enough, but after the sap in the leaf evaporates to the air,
OK but vacuum will not suck up water more than 33 feet.
So what does the top of the tree do ?
Peter.
--
From: Chris Wolcott [EMAIL PROTECTED]
To: Multiple recipients of sslivesteam [EMAIL PROTECTED]
Subject: Re: Capillarity
Date: Wednesday, May 30, 2001 5:19 PM
Vacuum. The water
All - Have a look here: http://www.massmaple.org/flow.html - John
- Original Message -
From: Peter Trounce [EMAIL PROTECTED]
To: Multiple recipients of sslivesteam [EMAIL PROTECTED]
Sent: Wednesday, May 30, 2001 6:35 PM
Subject: Re: Capillarity
OK but vacuum will not suck up water
If I may be so bold as to step into a fray with those much more
knowledgeable than I, the capillary action only has to act over the length
of one cell. And then the load (of lifting) is passed on to the next
cell.
royce
Geoff Spenceley wrote:
Loverley, Chris wrote:
No. As I recall, sap
Shades of Botany 1 and Plant Physiology 420! With about 5 years
inbetween.
Almost everything mentioned here has some role in the flow of liquids in
plants, but no one item totally accounts for the phenomenon. Capillarity is
certainly part of it, as is evapo-transpiration, diffusion
]
To: Multiple recipients of sslivesteam [EMAIL PROTECTED]
Subject: Re: Capillarity
Date: Wednesday, May 30, 2001 5:19 PM
Vacuum. The water evaporating out of the leaf creates a partial
pressure that draws up additional liquid to replace it. I don't
remember all the nitty-gritty details
the capillarity
action will be.
Even though it is May, soon to be June, Maplesugar season is long past, but
we sure hope all of you have your sap rising! May the forces of adhesion and
cohesion not prevent you from keeping your steam up!
Walt
Lunkenheimer Esquire,
You sound so well informedYou wrote:
Are there no sons or daughters of steamers that are taking introductory
Botany or graduate level Plant Phys?
No! but I am sure getting there with all this conversation! E.G--Royce
wrote: If I may be so bold as to step into a
Thanks Walt,
I particularly like your statement:
In the meantime, we may generalize that the larger the diameter of ALL
the elements of our sight glass systems, the less apparent the capillarity
action will be.
I think I'll have you build me a sphere for my next sight glass!--or,--a
cone
of sslivesteam [EMAIL PROTECTED]
Sent: Thursday, May 31, 2001 10:21 AM
Subject: Re: Capillarity
I would venture a guess that the sap in the tree only has to be raised one
cell at a time ...
Pete
At 07:35 PM 2001-05-30 -0400, you wrote:
OK but vacuum will not suck up water more than 33 feet
Hi,
How many people remember the classic demonstration of capillarity used in
almost all phys/chem classes? Basically an open water surface with a
circular plate that had different size holes drilled in it to accept
different sizes of glass tubing.
Sometimes they even put fool coloring
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