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Location: UFOUpDatesList.Com > 2007 > Dec > Dec 10

Re: Skylab 3

From: Bruce Maccabee <brumac.nul>
Date: Mon, 10 Dec 2007 11:35:08 -0500
Archived: Mon, 10 Dec 2007 14:21:49 -0500
Subject: Re: Skylab 3

>From: Jim Deardorff <deardorj.nul>
>To: ufoupdates.nul
>Date: Sun, 09 Dec 2007 10:55:37 -0800
>Subject: Re: Skylab 3

>>From: Martin Shough <parcellular.nul>
>>To: <ufoupdates.nul>
>>Date: Sat, 8 Dec 2007 14:57:39 -0000
>>Subject: Re: Skylab 3

>>>From: Bruce Maccabee <brumac.nul>
>>>To: <ufoupdates.nul>
>>>Date: Fri, 7 Dec 2007 12:12:58 -0500
>>>Subject: Re: Skylab 3

>>>However, to have image extension that is "left-right" as well as
>>>"up down" one needs more than just one axis of motion. In this
>>>case one needs two axis motion and that requires accelerations
>>>to change the rotation from around one axis to around another,
>>>perpendicular axis, and that results in "loopiness" of the
>>>photo. I should point out that in "loopy" motion one often gets
>>>bright spots which signify (if the light itself is constant)
>>>momentary slow-downs or stops in the angular rotation (bright
>>>spots imply longer exposures at various portions of the "loopy"

>>Just a thought: Is it possible that the characteristic looping
>>returns of the light trail in normal camera jitter are partly
>>due to gravity? In free fall there is no restoring force, so
>>excursions of the camera off-axis will perhaps not be self-
>>correcting in quite the same way. Could this lead to more linear
>>and less loopy-looking trails?

>A question: Are there some images available of typical camera
>itter of, e.g., a street light at night? Or of some night light
>known beyond question to have been a mundane fixture? I'd like
>to compare some of

I am not aware of any single frame picture at a shutter time of
1/250 of 1/500 of a second which shows anything other than
either a short straight linear motion (image stretched into a
short line) or a slight curve (image of a light turned into a
"banana" shape).

The "loops and whorls" that are "fingerprints" of complex hand
vibration turn up in relatively long exposures (0.1 sec to
several seconds). Most of the loopy hand vibrations I have
analyzed have occurred in movies or videos where the frame rate
is 10/sec to 30 /sec and the loops take several frames fo

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