NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Practice CN on cruise ship
From: Bruce J. Pennino
Date: 2017 Oct 29, 12:12 -0400
From: Marty Lyons <NoReply_MartyLyons@fer3.com>
To: garylapook---.net
Sent: Saturday, October 28, 2017 9:15 AM
Subject: [NavList] Re: Practice CN on cruise ship
From: Bruce J. Pennino
Date: 2017 Oct 29, 12:12 -0400
On a cruise ship, better to throw a stale donut from the railing and time
the fall.
Bruce
From: Gary LaPook
Sent: Saturday, October 28, 2017 4:28 PM
Subject: [NavList] Re: Practice CN on cruise ship
I became very good friends with my
meteorology professor at the University of Illinois in Chicago. His apartment is
on the fourth floor of a building on South Shore drive in Chicago, with the back
of the building right up against The Lake. You can spit out of this back window
into the lake. We had already learned about Torricelli carrying his newly
invented mercury barometer to a top of a mountain to discover that atmospheric
pressure lessened with altitude (it does), the first altimeter. The first time I
was at his house I asked him how far above the water his window was and he said
he had never measured it. So I said, "well, just get a barometer and bring it up
here..." and I could see the words forming on his lips that a barometer would
not be accurate enough to measure the short height up to his window, so I
continued, ".... and throw it out the window and time the fall."
gl
From: Marty Lyons <NoReply_MartyLyons@fer3.com>
To: garylapook---.net
Sent: Saturday, October 28, 2017 9:15 AM
Subject: [NavList] Re: Practice CN on cruise ship
Just don't drop your
sextant.............Time
the fall of the sextant from your observing height until it hits the water to a
fraction of a second,
.......
Sorry,
just could not resist.
Seriously,
the wealth of knowledge on this forum is amazing.
