Hello Mike and all,
I expect the impoundment of water in hydro power reservoirs adds mass to
northern hemisphere. This would effect the rotation of the earth adding a
bit of wobble like an out of balance top. Perhaps this wobble could affect
precession in the long run. Tidal power? Not so much as net storage of water
is small, following the tides, up and down in a daily cycle.
One way to model tidal power is as an alternating inductive capacitance
circuit. The resonance of that circuit can create large tidal ranges in
specific basins like the Bay of Fundy with tides over 20 ft. A large tidal
power project there would detune that resonance resulting in less power than
expected and water surging towards Boston rather than Fundy. One study of
the resonance predicted a rise in the tide level in Boston harbour by 10 cm
(4"). I am quoting what I remember from a conversation with a tidal power
expert about 15 years ago so my numbers may be off but resonance of tuned
inductive capacitive circuits was the basis of the analysis.
"Time and Tide Wait for Gnomon"
Roger Bailey
--------------------------------------------------
From: <jmikes...@ntlworld.com>
Sent: Sunday, January 01, 2017 7:20 AM
To: "Frank King" <f...@cl.cam.ac.uk>; <sundial@uni-koeln.de>
Subject: Re[2]: Leap Second Quiz Question
Frank wrote:
<<I am a huge fan of leap seconds
and see no reason to change this
scheme until the earth starts
slowing down more than 2 seconds
a year. All this wind power and
tidal power could accelerate that
happening!>>
I was at a talk recently by a guy who was promoting the use of tidal
energy.
(You know what you are going to get every day was his main theme"
At the end he invited questions, so I asked if the generation of
electricity by the use of tidal power would slow down the earth or moon.
He looked nonplussed.
I guess it might - comments welcomed.
Mike Shaw
53º21' N 3º02'W
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