Damn! and here I was hoping I could ship them to you! Not sure what
transpacific book rate looks like these days!
I *did* buy a full set of Blackies Encyclopedia circa 1901 when visiting
NZ in 2001... $NZ was about .45$US but book rate shipping (took over a
month, but I was gone anyway!).
I recently (2-3 years) gifted them to a HS History teacher friend as a
"prop" for his classes... it was a serious hit!
These bound copies ARE sturdy enough I suppose I could be creative
enough to simply use them as the "bricks" an a bricks&boards bookcase
for (yet) other books!
On 7/25/25 7:13 pm, Russell Standish wrote:
Funny how we used to do that. New Scientist was my bent, and I had
several years of bound copies at one time in my office at Uni. They
came home later into storage when I left the Uni. About half got
irrepairably damaged during a sewerage fault, and the remainder I
gifted to my son, who in the words of the American tourist from "84
Charing Cross Rd", likes "yards of bound leather" to decorate his
apartment.
Cheers
On Mon, Jul 14, 2025 at 06:19:04PM -0600, Steve Smith wrote:
I'm not clear on your (EricS's) age (childhood) but I have a full bound
collection of SciAm which might date back that far I'd love to find someone to
take over from me... I already tried unloading them on Zingale but he ducked
that bullet.
Any takers? Old paper and dust?
> Eric writes
> When I was a kid, there was some article (maybe Sci. Am.?) that I found
wonderful.
Bilateral Symmetry may apply to in magazines too :-) Here's a 1973 article
in "American Scientist" instead of "Scientific American" :-)
https://www.americanscientist.org/article/how-the-owl-tracks-its-prey
from the article:
Asymmetrical placement of the ears (one higher than the other) allows the
owl to determine both the azimuth (horizontal direction) and elevation
(vertical direction) of sounds.
On Mon, Jul 14, 2025 at 2:33 PM Santafe <[email protected]> wrote:
> On Jul 15, 2025, at 2:41, glen <[email protected]> wrote:
>
> Now, I'm sensitive to the argument that all this falls under
parallax, even radially symmetric body types and the 9 octopus ganglia.
And bi- vision, hearing, etc. is a simple form of parallax:
triangulation.
When I was a kid, there was some article (maybe Sci. Am.?) that I found
wonderful.
It had to do with owl ear asymmetries, which are produced by tufts of
stiff feathers at unequal positions in front of whatever feather-hood
(or something) channels sound to the ear canals.
Upshot of the articles was that owls need resolution in the vertical as
well as the horizontal, from phase, intensity, and packet-arrival-time
differences (including what acousticians term the “head-shaped transfer
function”, as I learned some decades later working among the
acousticians for a few years).
Article claimed (I have no way to check without a dive to see what has
been done since) that owls and people have about the same acuity in
lateral position of a sound’s origin, if the sound has enough shape
(so, not a clarinet) to cue from. But people have terrible vertical
acuity. For owls, the vertical acuity is ballpark-comparable to the
lateral.
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