Interesting discussion! So if I'm counting things, like telescopes, I start
with no telescopes, and keep adding until I have 10 of them, or a
"dekascope?!"Â ;)Â But when in music sounds or ocean waves, we're dealing
with continuous sine waves so to start counting we have to pick a starting
point. Would my first decade or ten years of life be birth to 9 or birth to
10? I was born in 1950. 1959 I completed nine years of living. 1960
completed my tenth year. 1961 completed the first year of my second decade of
life?
Anyway you slice it, we're out of the teens and into the 20's!
Stan F
-----Original Message-----
From: acrayon <acrayon@xxxxxxx>
To: az-observing <az-observing@xxxxxxxxxxxxx>
Sent: Sat, Jan 4, 2020 8:34 am
Subject: [AZ-Observing] Re: ATM/Astro-Imaging meeting is Tuesday
Paul, like your dissertation about the zero concept in relation to time, but
would like to add that programmers also start at ZERO.
AJ Crayon
Phoenix, AZ..
-----Original Message-----
From: Paul Lind
Sent: Friday, January 3, 2020 10:18 PM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: ATM/Astro-Imaging meeting is Tuesday
Seriously guys, this is the beginning of the decade called THE TELESCOPE
TWENTIES.
Engineers like Dr. Mozdzen and Mr. Kozel know that numbering starts at ZERO
in mathematics, engineering, and telescope making, and the beginning of all
time. This is the start of the next decade, the "TELESCOPE TWENTIES".
Some liberal arts folks like musicians insist at counting time starting at
"one" and ending at "and ah". Putting the downbeat at 'one' never made
sense to me. Musicians also screw up the numbering of harmonics, using the
term "first harmonic" to describe TWICE the fundamental frequency. I
forgive them for that and like to dabble in music myself.
Paul
----- Original Message -----
From: Thomas Mozdzen <Thomas.Mozdzen@xxxxxxx>
To: az-observing@xxxxxxxxxxxxx
Sent: Fri, 03 Jan 2020 15:02:37 -0500 (EST)
Subject: [AZ-Observing] Re: ATM/Astro-Imaging meeting is Tuesday
Try this
https://xkcd.com/2249/
[https://imgs.xkcd.com/comics/i_love_the_20s_2x.png]<https://xkcd.com/2249/>
xkcd: I Love the 20s<https://xkcd.com/2249/>
This work is licensed under a Creative Commons Attribution-NonCommercial 2.5
License. This means you're free to copy and share these comics (but not to
sell them). More details..
xkcd.com
________________________________
From: az-observing-bounce@xxxxxxxxxxxxx <az-observing-bounce@xxxxxxxxxxxxx>
on behalf of KEVIN KOZEL <kevin.kozel@xxxxxxx>
Sent: Friday, January 3, 2020 12:56 PM
To: az-observing@xxxxxxxxxxxxx <az-observing@xxxxxxxxxxxxx>; Paul Lind
<pulind@xxxxx>; sac-forum <sac-forum@xxxxxxxxxxxxx>
Subject: [AZ-Observing] Re: ATM/Astro-Imaging meeting is Tuesday
Paul,
I must correct your statement that we are beginning a new decade. 2020 is
the tenth year of the current decade, not the start of a new one.
We begin our counting with the number One, not Zero, and each decade has ten
years, thus 2020 being the last year of the current decade.
2021 will be the beginning of the next decade. The same reasoning is used
with the new centuries. For example, the 1900's were the twentieth century
and we are now in the twenty first century.
I can't convince my wife of this no matter how hard I try, so I let her
think what she wants.
Kevin Kozel
On January 3, 2020 at 2:31 PM Paul Lind <pulind@xxxxx mailto:pulind@xxxxx ;
 > wrote:
  Hi,
  We'll have this decade's first Amateur Telescope Making and
Astro-imaging meeting on Tuesday, Jan 7 in my shop, starting at 6:30. I
plan to set up the Foucault tester, so bring a mirror you want tested.
We'll also do some drilling and tapping on the lathe on a part that Lynn
needs for his "double telescope mount". So, if you have any small
machining projects, bring them over Tuesday evening.
  Paul Lind
  210 W. Tierra Buena Lane
  Phoenix, AZ 85023
  cell: 602-350-6190
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