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matt.h
Joined : 30 Jan 2008 Posts : 138
| Subject: Re: What Is A Ghost? Sun 03 Feb 2008, 11:25 am | |
| | I think the main question is what type of phenomena EM fields can induce. From what I've read on the matter, they can certainly induce the lower-level reports such as shadowy movements or sensations of fear, but writers such as Albert Budden have made an unsubstantiated leap in ascribing the sighting of full apparitions to EMF. |
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Ian Admin


Age : 35 Joined : 24 Aug 2007 Posts : 799 Location : Carlisle, Cumbria
| Subject: Re: What Is A Ghost? Sun 03 Feb 2008, 12:37 pm | |
| There is still a lot of work to be done on EM fields and I think it needs some more good research in the field at locations where people are reporting having these experiences, as well in laboratories recreating these fields if possible. Great first post Dave , welcome to the forum. |
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Mauro

Age : 31 Joined : 12 Oct 2007 Posts : 254
| Subject: Re: What Is A Ghost? Sun 03 Feb 2008, 2:34 pm | |
| Great post Dave, really made me think about that Physics exam I took ages ago! Ever since the progressive disappearance of traditional film cameras I have noticed a steady reduction of the good ghost photographs. Traditional film is quite sensitive to a number of agents: for example beta and gamma radiations have been shown to be able to impress photographic film (for example take a look at the first Chernobyl pictures, taken from rescue helicopters). If I remember correctly there have been just a few studies on the matter, mainly in the field of analytical chemistry, but as I said the recent development of digital methods has cut interest in the matter. _________________ Fas: Ite, Maledicti, In Ignem Aeternum. |
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Ophiel

Joined : 01 Feb 2008 Posts : 69
| Subject: Re: What Is A Ghost? Mon 04 Feb 2008, 9:56 am | |
| There are some good articles about EMFs and hallucinations on the ASSAP website.
The "ghosts use emfs to materialise" argument is simply false and has never been made in the scientific literature.
Highly complex, weak, EMFs can interefere with neural processes - but only in susceptible brains.
These fields can induce sensory hallucination (via mild seizure) and can also induce delusional beliefs about sensory events (i.e., a bang / rap - being a ghost).
It is the temporal complexity and not the field strength per-se that is important (though obviously some strength is required) |
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mysteryshopper
Joined : 05 Feb 2008 Posts : 163
| Subject: Re: What Is A Ghost? Tue 05 Feb 2008, 3:24 pm | |
| | Dave wrote: | | If ghosts do emmit EMF, does this stimulate the light sensitive particals in camera film? ... |
The type of EM field detected by EMF meters are the electric and / or magnetic field components produced by mains electricity (as well as those of a similar extremely low frequency). These have no effect whatever on film or digital cameras.
EMF meters can only tell you the aggregate reading over a spread of frequencies that they are sensitive to. As such, they are no real use for detecting the kinds of fields that produce hallucinations.
The idea that ghosts emit EM fields does not appear to be supported by any empirical evidence. Has anyone actually got a reading while watching an apparition? Even once? I really doubt it! I think it is mostly a prop used by the TV ghost hunting fraternity and their imitators to appear scientific. |
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Red Don

Joined : 23 Sep 2007 Posts : 44
| Subject: Re: What Is A Ghost? Tue 05 Feb 2008, 9:11 pm | |
| | So do you consider the hand held EMF meters to be useless in terms of investigating hauntings? |
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Ian Admin


Age : 35 Joined : 24 Aug 2007 Posts : 799 Location : Carlisle, Cumbria
| Subject: Re: What Is A Ghost? Tue 05 Feb 2008, 11:42 pm | |
| | Quote: | | So do you consider the hand held EMF meters to be useless in terms of investigating hauntings? |
I wouldn't say useless, but they have their limits. As Mysteryshopper says:
| Quote: | | EMF meters can only tell you the aggregate reading over a spread of frequencies that they are sensitive to. As such, they are no real use for detecting the kinds of fields that produce hallucinations. |
When I use them it is just for basic initial surveys of the location being investigated.
But if you are not then going to go ahead and do a more detailed survey with more specialised eqipment and actually do research into EMF's at that location, then I am not sure how useful they would be to any given group. |
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mysteryshopper
Joined : 05 Feb 2008 Posts : 163
| Subject: Re: What Is A Ghost? Wed 06 Feb 2008, 7:22 am | |
| | EMF meters can be useful in establishing if a place is electrically noisy, either once in a while or all the time. If so, you'd then need to do a survey with a magnetometer to properly characterise the field in case it might be causing hallucinations. Certainly, faulty mains equipment has been implicated in one or two cases as possibly causing ghosts and an EMF meter should give a first indication of this. |
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matt.h
Joined : 30 Jan 2008 Posts : 138
| Subject: Re: What Is A Ghost? Wed 06 Feb 2008, 12:40 pm | |
| | It's a shame the sort of electric and magnetic monitoring kit needed to really judge whether these factors are at play in a given "haunted" property are prohibitively expensive. |
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Ophiel

Joined : 01 Feb 2008 Posts : 69
| Subject: Re: What Is A Ghost? Wed 06 Feb 2008, 2:09 pm | |
| A proper scientific education is perhaps the best investment. By this I mean everything from qualifications to just making sure you read material of the highest quality (good quality journals / books) and learn to think about them.
It will be more expensive than an EMF meter - but as investments go - it's about the best one any of us can make! |
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mysteryshopper
Joined : 05 Feb 2008 Posts : 163
| Subject: Re: What Is A Ghost? Wed 06 Feb 2008, 4:10 pm | |
| What is a ghost? My definition would be: "A human, or sometimes animal, figure seen by somebody who has reason to believe such a person is not present." I'm sure the wording could be improved.
Most ghosts turn out, on investigation, to be misperceptions. Others may be hallucinations, in some cases induced by such things as magnetic fields. The cause of the remainder is, in my opinion, unknown at this time. Given their often reported lack of interaction with witnesses, the popular theory that they are spirits seems the least likely option. |
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matt.h
Joined : 30 Jan 2008 Posts : 138
| Subject: Re: What Is A Ghost? Thu 07 Feb 2008, 12:47 pm | |
| There are reports of apparitions seeming to interact with witnesses - in at least one case appearing to leave red marks on the witness' neck.
You're right, though, that it is little reported compared to the amount of apparition sightings in general.
One tentative suggestion may be that a "ghost" is a combination of objective environmental factors and subjective human interpretation. That is to say that there's something in the environment that causes localised, repeated and independent sightings of similar apparitions, yet inevitably our own minds put their own spin on it, even to the point of psychosomatic effects like those red marks.
The case of Blue Bell Hill - where a range of witnesses over a period of decades have reported sighting different apparitions yet with repeated motifs - seems to fit this model. |
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Ian Admin


Age : 35 Joined : 24 Aug 2007 Posts : 799 Location : Carlisle, Cumbria
| Subject: Re: What Is A Ghost? Thu 07 Feb 2008, 1:24 pm | |
| | Quote: | | A proper scientific education is perhaps the best investment. By this I mean everything from qualifications to just making sure you read material of the highest quality (good quality journals / books) and learn to think about them. |
Couldnt agree more Ophiel. I think also establishing good working relationships within areas that you don't much about is worth investing in. We cannot make ourselves experts in every field .
| Quote: | | a "ghost" is a combination of objective environmental factors and subjective human interpretation. That is to say that there's something in the environment that causes localised, repeated and independent sightings of similar apparitions, yet inevitably our own minds put their own spin on it, |
At the moment I would be putting my money on the environmental factor being EMF related and if there is an hallucination component to hauntings then surely the individual's subconscious or conscious mind will have some input so yes I would agree with you Matt.
But what makes people have similar experiences when they have no knowledge of other reported activity? Is it some visual or audio stimulus in the haunted location that setting the subconcious down a certain train of thought, hence influencing any subsequent hallucination? Who knows? |
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Ian Admin


Age : 35 Joined : 24 Aug 2007 Posts : 799 Location : Carlisle, Cumbria
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mysteryshopper
Joined : 05 Feb 2008 Posts : 163
| Subject: Re: What Is A Ghost? Mon 25 Feb 2008, 12:38 pm | |
| | The ideas in that article is all very old. Why is it considered news? |
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