Re: Unidentified object in a cloud chamber

Jon W Mooney <acoustics@xxxxxxxxxxxx> wrote in
news:92c67$44975dba$42a1c9b1$7991@xxxxxxxx:

bz wrote:

Jon W Mooney <acoustics@xxxxxxxxxxxx> wrote in
news:c89b$4493127e$422a8253$20007@xxxxxxxx:

Hi all,

I filmed a peculiar "ghost" in an aquarium cloud chamber that my 17 yo
son built.
....

I have looked at your video, frame by frame, doing contrast enhancement
on it, and I can't see even your alpha trails (do see some faint white
areas but nothing like I have seen in cloud chambers). Did the video
lose something in translation???



- Jon






Agreed, it is lousy video. I've compared the uploaded file with the
original and they're exactly the same. I can't spot the glow or alpha
trails when I step through it. I find it easiest to view full screen at
normal speed. Run it through at normal speed a couple of times just to
locate the path of the glow.

Then fix your view on the location at which the glow first changes
direction and run it through a couple of times. About a second after the
glow passes that point, you should see the alpha trail form from that
point toward the upper left. Once you see that, then move to the next
change of direction to locate that alpha trail and so on and so forth.

Whatever you have captured in the video (and I am not sure it is anything
beside a coincidence of random noise) is very difficult to see. The
movement of the camera makes it difficult to determine if a phenomina might
exist or just be related to the camera motion.

It might be something as simple as a reflection of the 'recording' LED of
the camera off of the 'corner reflector' that the sides of the aquarium
will make.

Science deals with phenomina that can be 'observed, identified and
verified'. In other words, one must be able to reproduce the phenomina and
others must also be able to reproduce it in order for it to be studied.

Certainly a strange observation should be studied to see if it can be
explained and reproduced.

You, with the camera and other equipment might try taking pictures again
with the camera in the same position, lighting similar, motion the same but
without charging the cloud chamber with vapor. See if similar 'moving
glow' can be observed. I suspect it will proved to be a reflection of the
camera's own 'recording' light.

Such discovery is the fun part of science. Good luck.


Thanks for answering.











--
bz

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.

bz+spr@xxxxxxxxxxxxxxxxxxxx remove ch100-5 to avoid spam trap

.

Relevant Pages

  • Re: Servo power?
    ... |>Like it or not, above a certain size, going electric costs a lot more ... you can get pretty good pictures with a gas/glow plane ... your engine fouling your camera ... ... But I'm not an electric (or glow) fanboy -- I know the ...
    (rec.models.rc.air)
  • Re: PAINTJOB: GLOWINTHEFlNG DARK!!!
    ... it's not bright enough for the camera. ... I've taken pictures of glow in the dark stuff with ... Is it the kind if glow were the more you hold it to the light, ...
    (rec.sport.unicycling)
  • Enhanced video of cloud chamber glow
    ... Unidentified object in a cloud chamber ... I brightened up the video, grayscaled it and posted it in a higher quality ... I think this shows that the movement of the glow is correlated to ... the condensation trails (i.e. trails form, end or change direction at the ...
    (sci.physics.research)
  • Re: Unidentified object in a cloud chamber
    ... but without charging the cloud chamber with vapor. ... See if similar 'moving ... glow' can be observed. ...
    (sci.physics.research)
  • Re: Microsoft Wireless Notebook Optical Mouse 4000--query
    ... All of the laser/optical mice have a pickup element (camera) and a light. ... The darker mice, when in contact with the surface, do not "glow", but I ...
    (microsoft.public.dotnet.framework)