Re: Mathematics, OT

Jim, I would think doing your calculations of the seeds as either a sphere
or a cylinder would be good enuf for your purposes as it seems the seedling
is clearly "winning."  My two cents -- glad you are keeping out of
mischief --
--Barb Tandy, Grass Valley CA
----- Original Message ----- 
From: "james singer" <jsinger@igc.org>
To: <gardenchat@hort.net>
Sent: Saturday, March 19, 2005 12:49 PM
Subject: Re: [CHAT] Mathematics, OT


> Hi Chris. Thanks... that would work except the footballs I have in mind
> are fruits and seed. What I'm looking for is "best guess" since I don't
> have the scales, beakers, and what-not to do displacement. So here's
> the problem; maybe you'll see a better way to attack it.
>
> I have two loquat trees that are fruiting [I'm not making this up]. One
> is a named variety, Bradenton, the other is a seedling I have selected
> from five seedlings I am also growing. Both trees are fruiting now. I
> got out my caliper today to do some measuring. A sample of fruit from
> the Bradenton averaged 1.62 inches long by 1.27 inches diameter. The
> fruits averaged 3 seeds each [range of 2 to 4], 0.77 inch long by 0.52
> inch diameter. A sample of fruit from the seedling averaged 2.14 inches
> long by 1.10 inches diameter. The fruits [every one] had only one seed
> each, with an average size of 0.69 inch long by 0.44 inch diameter.
>
> The difference in pit-to-flesh ratio must be significant--or at least
> substantial. I'd like to be able to say "I have a loquat selection that
> produces XX percent more edible flesh, per fruit, than Bradenton."
> Bradenton is one of the standard selection in South Florida.
>
> Incidentally, tree production seems to be about the same, but I haven't
> measured that yet. I also need to measure brix--the Bradenton seems a
> tad sweeter than the selection, but I don't know it that's true and, if
> it is, by how much. At any rate, the selection certainly isn't unsweet
> but maybe a tad more acidic.
>
> More than you wanted to know?
>
> On Mar 19, 2005, at 3:09 PM, Christopher P. Lindsey wrote:
>
> >> Anyone on this list remember enough solid geometry to send me the
> >> formula for figuring the volume of a football?
> >
> > Jim,
> >
> >    First, cut open the football.  Next, remove all air, stuffing, etc.
> >    Fill the football with water.  Once full, pour water out into
> > measuring
> >    cup.  Record.
> >
> >    :)
> >
> >    So when you say a football, is an ellipsoid good enough?  Or do you
> >    need to take into account the pointed ends?
> >
> >       http://www.csgnetwork.com/volumeellipsoid.html
> >
> > Chris
> >
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> >
> Island Jim
> Southwest Florida
> 27.0 N, 82.4 W
> Hardiness Zone 10
> Heat Zone 10
> Minimum 30 F [-1 C]
> Maximum 100 F [38 C]
>
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