Hello John
Interesting stuff but perhaps it should be pointed out that reed cane
(Arundo Donax) is a much slower growing relative of Bamboo (max 5cm per
day at its peak compared to Bamboo's 60cm). Also, the variations
observed are radial rather than longitudinal i.e. in slips which are
equidistant from the nodes, so that's why the south/north suggestion
arose.
As aye
Anthony
--- On Fri, 9/7/10, [email protected] <[email protected]> wrote:
From: [email protected] <[email protected]>
Subject: [NSP] Re: Reeds
To: [email protected]
Date: Friday, 9 July, 2010, 20:12
In Trinidad there is a tradition to only cut bamboo on "Dark nights',
otherwise it will quickly be destroyed by insects. Research shows
that more photosynthesis occurs when the moon is shining so that there
is a greater accumulation of starch ( a favourite food of insects) when
the moon is shining. I think that the timing for cutting the bamboo
will affact the density more than any differnce between North and south
sides. The cane closest to the nodes will be harder and denser than
material taken from between the nodes.
On a lighter note I once met a Bamboo specialist who found that it
was difficult to construct structures with round bamboo. so he made
some steel moulrs and grew the bamboo through these to produce square
sectioned bamboo. It worked but was not a commercial success.
For more technical information there is a May 1980 book " Bamboo
Research in Asia" published by the IDRC in Ottawa
John Bridges
-----Original Message-----
From: Gibbons, John <[1][email protected]>
To: [2][email protected] <[3][email protected]>
Sent: Fri, Jul 9, 2010 9:21 am
Subject: [NSP] Re: Reeds
Anthony's comments about adjacent slips from the same piece of cane
made me
onder if the north and south side of the cane would be of differing
elasticity
r density??
Variation with height is clearer, of course.
John
-----Original Message-----
rom: [4][email protected] [mailto:[5][email protected]]
On Behalf Of
rancis Wood
ent: 09 July 2010 14:00
o: Anthony Robb
c: Dartmouth NPS; [6][email protected]
ubject: [NSP] Re: Reeds
n 9 Jul 2010, at 13:38, Anthony Robb wrote:
> I have looked at the resources you list but have found that Mike
Nelson's methods give by far the best results.
Hello again . . . yes, you're right. I certainly should have included
Mike's
ages at:
[7]http://www.machineconcepts.co.uk/smallpipes/reeds.htm#chanter
I agree too that there are so many variables in all of this. Samples of
cane
rom the same batch and even the same stem can differ greatly, the
density and
ardness depending on the height the piece is cut from.
Incidentally I made a surprisingly good reed from a Coke can a month or
so ago.
urther attempts demonstrated that even Coke cans vary a lot.
Cheers,
rancis
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References
1. http://uk.mc862.mail.yahoo.com/mc/[email protected]
2. http://uk.mc862.mail.yahoo.com/mc/[email protected]
3. http://uk.mc862.mail.yahoo.com/mc/[email protected]
4. http://uk.mc862.mail.yahoo.com/mc/[email protected]
5. http://uk.mc862.mail.yahoo.com/mc/[email protected]
6. http://uk.mc862.mail.yahoo.com/mc/[email protected]
7. http://www.machineconcepts.co.uk/smallpipes/reeds.htm#chanter
8. http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html
