[time-nuts] FW: Pendulums & Atomic Clocks & Gravity

Don Collie donmer at woosh.co.nz
Wed May 30 03:21:59 EDT 2007

It`s just like the fly in the glass jar scenarmino : Just imagine a glass 
jar [with a lid] with a fly flying around inside the jar. The jar is being 
accelerated towards it`s inevitable demise when it hits the sun. Does the 
fly stay in the same position in the jar, or is it "pushed" towards the end 
of the jar furtheest from the sun. Now I don`t know the answer to this 
one..........but I sure wouldn`t like to bee the fly.
Affectionately yours,...............Don Collie jnr.

----- Original Message ----- 
From: "Dr Bruce Griffiths" <bruce.griffiths at xtra.co.nz>
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Sent: Wednesday, May 30, 2007 12:49 PM
Subject: Re: [time-nuts] FW: Pendulums & Atomic Clocks & Gravity

> Bill Beam wrote:
>>>> Not true.
>>>> Very simple experiments will show occupants of the satellite that they
>>>> are in a non-inertial reference frame.  (Release a few test masses
>>>> about the cabin and you will observe that they move/accelerate for no
>>>> apparent reason, unless the satellite is in free fall which you'll know 
>>>> soon
>>>> enough,)  The experimenter must conclude that the satellite is 
>>>> undergoing
>>>> acceleration due to the influence of an attractive (gravitational) 
>>>> field.
> Except when released at rest with respect to the satellites centre of
> mass the test masses will both drift towards the satellites centre of 
> mass.
> The outermost test mass will have too slow an orbital speed to remain at
> the position it was released and the innermost test mass will have too
> large an orbital speed to remain at the position at which it was released.
> Bruce
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