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Running Your Own Ghost Investigation?

Quirkz writes "I am a skeptic, but have friends and family who swear by their ghost stories. I have access to a supposedly haunted house and been tempted to run a proper scientific investigation. My first question is what sorts of tools or measurements would make for sensible metrics to test during a hunt? Temperature change seems to be a common one, but the other devices you'll see ghost hunters use seem pretty random. The second question is what kinds of results would it take to be 'interesting'? Baseline readings at several presumably non-haunted locations seem to be obvious requirements for comparison. Once you have those, what kinds of results would it take to convince a skeptic there's something unusual going on, or demonstrate that there's not? I don't have much hope of changing the minds of those who believe, but it would be satisfying to at least be scientific about it."

53 of 810 comments (clear)

  1. Proton Pack by Anonymous Coward · · Score: 5, Funny

    You definitely need a proton pack: http://en.wikipedia.org/wiki/Proton_pack

    1. Re:Proton Pack by sqldr · · Score: 5, Insightful

      well, there's actually a really easy way to tell if your house is haunted:

      it isn't.

      --
      I wrote my first program at the age of six, and I still can't work out how this website works.
    2. Re:Proton Pack by metacosm · · Score: 3, Insightful

      Parent++.

      I don't see how playing into your families delusions helps them or you? Why not hunt for the Easter Bunny with them, or Santa... or setup a trap for the tooth fairy.

    3. Re:Proton Pack by clarkkent09 · · Score: 4, Insightful

      I wish I had such gullible friends and family. Tell them you can find the ghost but only once they provide you with the hardware components for your ghost detector: . Then just sort of attach them randomly together, wander around the house for a while and say you didn't find any ghosts. It's a win-win situation.

      --
      Negative moral value of force outweighs the positive value of good intentions.
    4. Re:Proton Pack by icebike · · Score: 4, Insightful

      He wanted to be scientific in his investigations of ghosts.

      All the randomly wired together equipment in the world won't help him prove a negative.

      Evidence of Absence is only possible when the subject and the location and the time window are well defined (zero marbles in the glass jar at this instant).

      But since he can't pin down the definition of a ghost (let alone measure it), there is no point in worrying about the location (plane of existence?), or time frame. Nothing he could produce would satisfy his septics.

      So he arrives here asking what he can measure to be "scientific about it", to which we can only ask:
                Be scientific about WHAT?

      Any random forked stick should do until he answers the above.

      --
      Sig Battery depleted. Reverting to safe mode.
    5. Re:Proton Pack by sumdumass · · Score: 4, Insightful

      What makes you think they are delusions?

      Seriously, I mean the scientific approach wouldn't be that they are delusional, it would be that no evidence has been presented to you. Unless you can scientifically explain away whatever they presented as evidence for their beliefs, the best you have is that you aren't convinced. Not that they are delusional.

      The concept of a haunting has been around for quite some time. Some of it probably is misinterpreting facts and a mind running creatively wild, or purposeful lies designed to influence behavior of some sort. But you can't say all or every single claimed instance is because you simply do no know the facts or have the ability to test them. And as we all know, the lack of evidence does not mean it's impossible, it only means it hasn't been proven yet.

    6. Re:Proton Pack by magarity · · Score: 4, Funny

      I rarely post on Slashdot, but I will for this.

      What are you babbling about?? I see your posts all the time.

    7. Re:Proton Pack by illeism · · Score: 3, Funny

      Once you're sitting in your apartment with someone, and suddenly a candle flies several feet off a shelf as you're looking at it

      (insert adorable kitty pic here)

      I can has midichlorians too?

      --
      Help test the /. effect at my min
    8. Re:Proton Pack by sumdumass · · Score: 3, Insightful

      Lol.. There was not once, ever, been a scientifically valid positive result for a transistor or digital signal, until- wait for it- someone went off on a wild goose chase and discovered that basis for what makes 90% of technology possible today.

      But hey, I would say that ghosts and the supernatural simply hasn't been scientifically tested. It may be because they aren't real, but then again, how do you scientifically test something you can't scientifically understand? But in the cases where they were tested, it either turned out to be something else and a product of someone's imagination or simply a no show for the spirit. About the only way it could be tested is if there was more knowledge of it and that's only going to be possible if people continue to examine the supposed haunting.

      Anyways, back to your "Further research in the area, after this much overwhelming evidence, is useless" comment, So what if it's useless? What if the so called haunting turns out to be some plumbing in bad shape and the investigation find it before it ruptures and ruins the entire house. What if it turns out to be a pedophile sneaking in and watching children sleep and they simply haven't been able to catch him because he hides his tracks so well so they blame it on being haunted. Surely if his investigation turns anything remotely like that up, it wouldn't be useless.

    9. Re:Proton Pack by mmarlett · · Score: 5, Insightful

      Well, what this really is a chance for him not to so much apply the scientific method but rather to teach the scientific method. He already has a hypothesis: his family is full of crap. What he needs is for his family to come up with the testable hypothesis. Have them do the work to prove the ghosts. Set up controls, double blinds, etc., etc. The goal is not to prove the non-existance of ghosts, but to make the family shut up about it. And it's totally possible to work with them in such a way that it sucks all the fun out of the make believe and teaches them that, really, they cannot prove their claims even to themselves. He, however, should stick to trying to help them prove what they believe. But they have to be able to articulate what they believe in some way. But that is their problem, not his.

    10. Re:Proton Pack by williamhb · · Score: 5, Insightful

      Parent++.

      I don't see how playing into your families delusions helps them or you? Why not hunt for the Easter Bunny with them, or Santa... or setup a trap for the tooth fairy.

      Slightly funny anecdote, but childrens' belief in Santa and the Tooth Fairy is entirely scientific. Every time, they conduct a falsifiable experiment (put out a cookie / tooth that might not be consumed / taken) and every time they come back with a positive result. They even do peer review, asking their fellow peers (children) what their results were (what they got from Santa), and even validate the experiment with respected and more experienced experimenters of the past (their parents, who swear blind that the results are genuine). They are only thwarted because there really is a grand world-wide ongoing conspiracy to interfere with their experiments and falsify their results.

    11. Re:Proton Pack by shawb · · Score: 4, Insightful

      While I personally agree with you, that line of reasoning will not convince believing friends and family that the house isn't haunted.

      That's okay, though. Because a thorough scientific investigation will not convince believers either. The slightest wobble in any of your readings will be read as a haunting. Lack of wobble in the readings will be read as a haunting. A complete failure to find any evidence of ghosts will be taken as evidence that the ghosts do not want to be found.

      And then there's a good chance that your work and or words will be taken out of context in a way that seems to support ghosts, but will be worded in such a way that a FORMER SKEPTIC now BELIEVES!

      Basically, don't do it.

      --
      I'll never make that mistake again, reading the experts' opinions. - Feynman
    12. Re:Proton Pack by mcgrew · · Score: 3, Interesting

      If you see something you can't understand or explain, science to the rescue -- that is, if you can come up with a testable hypothesis, which is damned hard in these cases.

      I've seen a "ghost" twice, both in very old houses. As Scrooge told Marley, "you could be a bit of undigested beef", but in the first case that was impossible. I was still married and the kids were babies, we were poor, living in a tiny house right next to a railroad track. Something woke my ex and I up at the same time, and a dim light seemed to come down the hall. Both of us saw a thin woman with dark hair wearing an antique dressing gown.

      We thought it was a burglar. She ran in to check on the kids, and I went down the hall after the woman -- who was gone, simply not there, and there was nowhere she could have hidden. There's no way two people are going to hallucinate the same thing at the same time; that's even more far fetched than the spirits of the dead walking the earth.

      The second time I was home alone sitting on the toilet, and a woman walked up to the bathroom door, startling the hell out of me. The odd thing was, I seemed to startle her as well -- then she vanished.

      The second could have been a trick of the light, digestion, etc, but the first was inexplicable. Maybe sometimes one can see into a paralell universe, or into a different time or something? maybe a wormhole opened up? There's really no way to tell.

    13. Re:Proton Pack by nabsltd · · Score: 4, Insightful

      Part of the scientific method is to give up after a while.

      Where, exactly, in "observations, hypotheses, predictions, and experiments" does it say "give up"? Until a phenomena is explained, you aren't following the method if you give up.

      There has not once, ever, been a scientifically valid positive result from a single test for ghosts. Further research in the area, after this much overwhelming evidence, is useless.

      See, this is where you don't understand "scientific method". The hypothesis in this case comes from the poster's family:

      There is supernatural phenomena ocurring in that house.

      This was based on observations. What the poster wants to do now is predict and experiment. The iteration of these processes is called "the scientific method".

      There may or may not be anything supernatural happening in the house, but without following the steps, no one will ever know exactly what is happening in the house (if anything). In particular, if the observers are not delusional, then something is happening in the house. Whether it is supernatural or not can only be determined by (drumroll, please)...the scientific method.

    14. Re:Proton Pack by babblefrog · · Score: 4, Insightful

      To be more accurate, you both *remember* seeing the same thing at the same time.

  2. Burden of proof. by Seor+Jojoba · · Score: 5, Insightful

    It seems like a mistake to go to some place and look for the absence of an anomaly. The burden of proof is on the one who makes the claim. You will never prove that ghosts don't exists in a house. Maybe they will be there tomorrow when you aren't around. Maybe you don't have the proper equipment to detect one.

    1. Re:Burden of proof. by Monkeedude1212 · · Score: 5, Informative

      The burden of proof is on the one who makes the claim.

      This.

      As a scientist you should never discount an idea without first reviewing the facts. Facts are much more powerful than any first hand accounts of people who say they saw, felt, heard, or smelled something.

      The typical ghost hunting equipment is a Video Camera, Flashlight, Thermal filter for the Camera, and Magnetic field detector.

      However, I have never once seen any footage that couldn't have been explained by high school physics, or shown to be anything more than a hoax. And you likely won't either. If you are a skeptic, you should not be afraid to wander the dark hallways and should be able to determine that any odd readings are actually coming from a logical source that most people are too afraid to check into.

      I remember watching one show, and they were absolutely surprised that this "one pipe" was giving off a lot of heat and this "other pipe" was giving off some weird Magnetic field. I dropped my jaw as it was obviously a central heating pipe (no doubt with hot water flowing through it) and an Electrical conduit, no doubt powering the lights upstairs. I then hit my head against the wall when they said it was clear evidence of something weird going on.

    2. Re:Burden of proof. by Pharmboy · · Score: 3, Insightful

      http://en.wikipedia.org/wiki/Russell's_teapot

      http://en.wikipedia.org/wiki/Flying_Spaghetti_Monster

      At this point, there has been enough claims without evidence to simply say "I don't think they exist, and you are free to show me evidence contrary", and then explore from that point. Going out to that town's resident "ghost house" on a whim to try to prove one thing or another isn't science. He might as well go to the ocean and prove there is or isn't sea monsters. In both instances, the net result won't be Science®, and isn't even good, interesting or unique pseudoscience.

      --
      Tequila: It's not just for breakfast anymore!
    3. Re:Burden of proof. by causality · · Score: 3, Insightful

      It seems like a mistake to go to some place and look for the absence of an anomaly. The burden of proof is on the one who makes the claim. You will never prove that ghosts don't exists in a house. Maybe they will be there tomorrow when you aren't around. Maybe you don't have the proper equipment to detect one.

      Perhaps not, but if you really do detect anomalous activity that you are unable to explain, it would help falsify the notion that we are able to explain every possible activity that can take place in an empty house. Of course that wouldn't prove that there are ghosts, that people survive death in some kind of non-corporeal form, or anything like that. However, it would lend credibility to the notion that there may exist forces that science has not yet understood, that there are phenomena we may be no more aware of than people who lived a thousand years ago were aware of radio waves. As you say, finding nothing unusual wouldn't make it any easier to prove a negative, but if something were found that cannot easily be explained by known phenomena, that would be interesting.

      I can see how some people would consider it worthwhile to conduct these experiments. Honestly, I would be a bit disappointed if it turned out that we already know about every possible physical force and/or physical process that could exist in the universe. As long as such experiments are scientifically sound, I see nothing wrong with them.

      --
      It is a miracle that curiosity survives formal education. - Einstein
    4. Re:Burden of proof. by Culture20 · · Score: 4, Funny

      My wife saw a ghost hunters where they were in the woods when something flashed across the screen (black and white night vision). They replayed it a couple of times. My wife showed it to me, it was obvious to me on first viewing that the silhouette was a deer that finally decided the idiots where too close and sprinted out of there. The freeze frame left no doubt it was a deer, but the ghost hunters could only say 'something' was out there.

      Just because they were hunting ghosts doesn't mean they couldn't find a unicorn.

    5. Re:Burden of proof. by jonbryce · · Score: 5, Insightful

      The problem is that the statement "there are ghosts" is not falsifiable. There isn't an experiment you can perform that will prove they don't exist. Maybe the experiment scared them away, or they just didn't turn up etc.

      The statement "there are no ghosts" is falsifiable. It can be proved wrong by demonstrating the existence of the ghost.

    6. Re:Burden of proof. by RsG · · Score: 4, Interesting

      An interesting thing I read a while ago suggested that some of the supposed symptoms of "hauntings" are actually mundane, infrasonic phenomena. To wit, if a location has a source of sound waves not far below the boundary of audible frequency (machinery, pipes, ducts or even just free flowing air through the right structure) people and animals will react to the noise with alarm, even though we can't hear it. This has been suggested as one possible mechanism whereby certain animal species react in advance to seismic phenomena. It's possible a person could enter a room with a sustained infrasonic hum and attribute their instinctive sense of alarm to a malevolent presence.

      So I'd suggest that guy who asked slashdot get microphones and recording equipment that can pick up on sound below 20 Hz. I've no idea where or how you'd get this equipment, or whether this would be a viable option for an amateur sceptic on a budget, but it's worth looking into.

      If you find a recurring sound in a location where supposed "hauntings" have occurred, try to locate the source. It might be the problem can be solved by calling a plumber instead of an exorcist.

      --
      Erotic is when you use a feather. Exotic is when you use the whole chicken.
    7. Re:Burden of proof. by smbell · · Score: 5, Interesting

      From what I've read (Google finds some stuff) infrasonic vibrations cause feelings of fear and 'of being watched'. They can also affect vision to cause blurs or 'ghostly images'. I don't have any direct experience, but it's been the explanation that seems to make the most sense to me.

    8. Re:Burden of proof. by John+Hasler · · Score: 3, Funny

      Then one night I got throw out of bed by something unseen. My girlfriend was already awake (she had been hearing footsteps around the bed). I guess we're both mad.

      Sounds more like your girlfriend was mad at you.

      --
      Warning: this article may contain humor, sarcasm, parody, and perhaps even irony. Read at your own risk.
    9. Re:Burden of proof. by Bodrius · · Score: 5, Insightful

      The problem is that we keep taking colloquial statements from non-scientific people we disagree with and pretending they are properly stated hypothesis to build a strawman so we can feel better about our intellectual superiority.

      Finding 'what the heck is going on here?' is the most basic of scientific endeavors, yet the comments here overflow with predetermined conclusion on the theological question of ghost-existence, with a notorious absence of interest in any actual facts or potential evidence for the 'haunting' phenomena. This reflex is precisely why so many non-technical people think science is just like a 'secular faith with its own beliefs'.

      To pick an arbitrary example, no doctor would work like that and claim its scientific:
      - hey doc, I spent all day in the rain and got a flu...
      - you're an idiot, you can't get the flu without being in contact with the virus. Now get out of my office unless you can really prove you got it from standing in the rain!

      Instead, the doctor would extract the core of what the patient (not assumed to be a doctor or a scientist) actually means ('I feel bad, like when I've had the flu before'), interrogate the patient for the facts and details (symptoms, timelines, contact with other sick people), and translate that into a useful hypothesis for the disease and its cause... and at least go through the process before yelling hypochondriac.

      Of course "there are ghosts" is not a useful scientific hypothesis.It's actually not a question of falsifiability, but specificity: 'ghosts' is not defined well enough to even get to the falsifiable part. Like 'god' most people in a conversation don't mean the same thing with that word, and a *lot* of people won't mean the same thing at different times in the same conversation.

      But the people saying 'there is a ghost in this house!' are rarely trying to build a scientific hypothesis, or are even trained to do that either. They apply 'ghosts' as a shorthand for 'something weird is going on' and a blind jump of faith to a lot of cultural baggage of 'stuff people have said in the past was related to similar weird stuff', as a way to communicate that 'unknown' experience through a common meme. Much like people have always done when other stuff happens and they guess at some pattern: health and sickness, weather, economic hardships, magnets, etc - and people are often wrong when they do that, but that doesn't mean there was no phenomenae to feed those memes in the first place.

      Maybe an investigation finds nothing more than construction defects, bad insulation, gas leaks or defective electronics - if it was fun enough to spend the time, so what? Maybe it finds something more surprising than the usual (without requiring theological explanations).
       

      --
      Freedom is the freedom to say 2+2=4, everything else follows...
  3. How about by plover · · Score: 5, Funny

    Bring some common fucking sense, and a stick to hit those who didn't bring any?

    --
    John
  4. Wrong location by Quasar1999 · · Score: 5, Funny

    Take the people who believe they're in a haunted house and send them through an MRI to see what part of their brain is damaged. Don't waste your time in the supposed haunted house, the feeling of a 'presence' and 'ghosts' and any other paranormal crap is all in the person's head. So start there.

    --

    ---
    Programming is like sex... Make one mistake and support it the rest of your life.
    1. Re:Wrong location by antifoidulus · · Score: 3, Informative

      Yeah, but you have to trick them into getting into the MRI machine. Your best bet is probably to tell them that it's a super secret spectral chamber where they will be able to hear the screams of the undead, but only if they agree to remain absolutely still.

  5. Re:A good dose of: by The+Mighty+Buzzard · · Score: 5, Informative

    Try here and here.

    --
    Violence is like duct tape. If it doesn't solve the problem, you didn't use enough.
  6. Get the believers to make... by John+Hasler · · Score: 5, Insightful

    ...an objectively testable prediction. If you can't get them to make such a prediction quit wasting your time.

    --
    Warning: this article may contain humor, sarcasm, parody, and perhaps even irony. Read at your own risk.
  7. Take a cue from ghostbusters by HockeyPuck · · Score: 5, Funny

    The Ghostbusters also use equipment to hunt and find ghosts, such as a PKE meter, Ecto-Goggles, and a Ghost Sniffer. A PKE meter is a handheld device, used in locating and measuring Psycho-Kinetic Energy, which is a unique environmental byproduct emitted by ghosts. The device's most prominent feature are winged arms that raise and lower in relation to the amount of PKE detected while a digital display gives an exact reading for the operator. The Giga meter is a device similar to the PKE meter, featured in Ghostbusters II. As explained by Egon in the original script, the Giga meter measures PKE in GeV, or giga-electronvolts. Ecto-Goggles, sometimes known as "Spectro-Visors", are a special pair of goggles that visually trace PKE readings. They are particularly useful in helping its wearer see normally invisible ghosts and it can also be used to assist in tracking ghosts within a visible field of search.

  8. but I have friends and family ... by porky_pig_jr · · Score: 4, Funny

    wouldn't be easier just to change both friends and family?

  9. Brain Recorder (FMRI, PET scanners) by digsbo · · Score: 3, Insightful

    I'd recommend something like an FMRI or PET scanner which can determine when you're perceiving something (i.e. don't measure the house, measure yourself).

    Since ghosts don't seem to show up on recordings in any reliable, repeatable way, it suggests that if they do exist they directly project their energy into the brain, rather than manifest physically. So you'd need to detect the perception, rather than the physical anomaly itself (which probably doesn't exist).

  10. An easier and cheaper idea by Platinum+Dragon · · Score: 5, Interesting

    Get your relatives copies of Carl Sagan's "The Demon-Haunted World".

    --

    Someday, you're going to die. Get over it.
  11. Re:wow by causality · · Score: 5, Insightful

    not much of a skeptic are you.

    I forgot that these days, skeptic means "don't ever investigate anything and for bonus points, display contempt for those who do".

    The summary is a good example of what real, healthy skepticism is. It boils down to "I don't think I will find anything, but I don't actually know that until I look, so here is the experiment I want to conduct." Is it the lack of presumption and arrogance that offends you? Does the presence of open-minded people willing to look for evidence, even of things they don't actually believe in, make you feel uncomfortable with your narrow-minded worldview? I'm guessing that's where the contempt comes from.

    --
    It is a miracle that curiosity survives formal education. - Einstein
  12. I'm normally a skeptic but... by makubesu · · Score: 5, Funny

    there have been times where I've wandered these parts late at night in lonely topics, and I swear I've heard the cries of the negative karma posters, screaming for revenge. They say their souls will not rest until they've compensated for their sins in life. On nights like these, they say you can see their cold remarks beckoning from the mist, trying to pull you into hell with them...

  13. A megaphone and a pair of ears by holophrastic · · Score: 3, Funny

    Just shout, really loudly, "HEY GHOST!".

    If you hear "HEY HUMAN" then shout "MARCO?". If you hear "POLLO!" go find the source of the sound.

    If it's your friend, laugh. If it's nothing, lather-rinse-repeat. If it's a ghost, you'll see it. Then ask it to follow you home.

    What the hell else are you going to do? Temperature change? Wind. What the hell, it can change by ten degrees in an hour quite easily.

    Like everything else in english, you have to answer one question: what's a ghost. Define the term, circle the nouns, and look for them. Then underline the verbs and see if the nouns are doing the verbs. Since when does anyone define a ghost as something that can change temperature. That's just a lot of hot air -- maybe from the ghost.

  14. Bring a sense of humor! by tetrahedrassface · · Score: 3, Insightful

    Hunting for ghosts can be fun, exciting, educational (if you like history) and perhaps a healthy outlet. As a skeptic myself, my wife and I really enjoy staying in supposed haunted hotels. We have stayed in several, and most of the hotels are old, beautiful, and historic. We haven't found a ghost yet, although we have had some weird things occur that seem odd. It doesn't matter at the end of the day (or night) that some poltergeist or level 5 free form book stacking apparition hadn't come into our room. What did matter is that we did something fun and cool together.

    Now, some people will try to make you feel stupid for wanting to explore a house that has supposed strange goings on, but in reality these same people would have subscribed to Pluto being a *real* planet, or the Earth being flat, or of the aether theory. They also can't explain why the two Voyager spacecraft haven't reached the Heliopause, or what exactly *is* dark matter. They don't have those answers do they? Did anyone see it coming that the periodic table was changed? In short not very many things are nailed down as far as being immutable. Perhaps supposed hauntings are vibrational in nature and related to another plane of existence. Perhaps 'hauntings' are a great demonstration of the phenomenal power of the human mind, or maybe hauntings are really just an example of the power of the human mind and its propensity to create stories in an attempt to rationalize an event whose mechanism is unknown to the witness.

    What I *do* know is that irregardless of all those things, we don't even take cameras, or really even poke about the haunted hotels we stay in. We just have fun and learn a bit of local history wherever we happen to be. In ending, life is full mystery and fun, and maybe indulging in a bit of fantasy and romance in a world that seems hell bent on destroying every legend, myth, and bit of intrigue that's left out there isn't so bad after all..

  15. Re:You've got to be kidding me by Quirkz · · Score: 5, Interesting
    Honestly, I thought it sounded like a fun way to spend a night with some friends, and figured I should do something more than sit in the dark asking "What's that noise?" every few seconds. I'm a geek at heart, so why not take some readings, record some data, and find out what kinds of things (weird temperature pockets, magnetic fields) are all around us that we just don't notice most of the time?

    - Less of a nut job than you think

  16. Just be sure to use a fast film by mark-t · · Score: 5, Funny

    Ghosts can be quite amiable to being photographed, but you don't want to end up in a situation where the spirit was willing but the flash was weak.

  17. Re:wow by WinstonWolfIT · · Score: 4, Insightful

    Well the true skeptic will doubt the disbelievers too.

  18. Re:wow by geckipede · · Score: 5, Insightful

    Being willing to consider evidence which doesn't fit your world view is good.

    Putting unusual effort and resource into investigating something that you have very good reason to suspect is complete nonsense, is not good.

    In a perfect world, a skeptic would be free to test absolutely everything, from the existence of ghosts, to periodically making sure that newtonian mechanics and basic chemistry still remain valid, and that science hasn't all changed over night. Out here in the real world, we have to prioritise our time onto things that have a better chance of being valid.

  19. Re:wow by causality · · Score: 5, Insightful

    Do you investigate the flat Earth theory? Do you investigate the geocentric theory? Do you investigate spontaneous generation? Do you investigate alchemy? ARROGANCE!

    Ah, another person tries for the low-hanging fruit. Perhaps my response will demonstrate why this is what you are doing.

    First I'll say that the word "ghost" isn't a terribly great word. It implies that any strange phenomena are caused by dead people who still retain some kind of non-corporeal existence. The actual cause of such phenomena could very well be some not-yet-discovered natural force that has nothing to do with people at all, living or dead. What I personally believe is that strange things do happen that we do not (yet) know how to explain and as such, we have no idea what might be causing them. Using loaded words like "ghost" is therefore inappropriate, not to mention it's fodder for belligerent narrow-minded people who just want to demagogue something instead of contributing anything useful because they knee-jerk upon hearing a loaded word.

    Moving along... Do I personally investigate those things you mentioned? No. The first three have been thoroughly falsified. Regarding alchemy, if you conducted a scientifically-sound experiment that claims to have produced conclusive evidence, I'd be willing to entertain that evidence so long as it's understood that the burden of proof is entirely on you and your methodology needs to be both sound and available for examination. If you can meet those conditions then I say go for it.

    This is the part you seem to have a hard time with. I have seen abundant evidence that the Earth is spherical. That's why I see no point in investigating a flat-Earth theory. It is falsified by the knowledge that the Earth is spherical combined with the knowledge that spheres are not flat. I have seen no compelling reason to believe that "ghosts" (to use the colloquial, loaded word) have been falsified. Therefore I consider it an open question and I am willing to entertain scientific evidence of such.

    Your mistake is that you think the two ideas are on equal ground. You cannot recognize and appreciate the difference between a thoroughly falsified notion and the truly unknown. That's why what you call "skepticism" is just narrow-minded arrogance, not unlike religious zealotry. It makes a mockery of the healthy kind of skepticism that says "show me the evidence".

    You can cower behind that narrow-mindedness if it helps you protect your worldview from the terrible (to you) risk of being altered to accept new possibilities if that pleases you. Just understand that others like me are perfectly comfortable saying "I really, truly don't know, therefore it doesn't make sense to form a passionate belief about this subject."

    --
    It is a miracle that curiosity survives formal education. - Einstein
  20. I'm gonna bite on this one like it's serious. by Artifakt · · Score: 3, Informative

    Temperature change - it's not a very reliable metric for a reading in free air. A cool breeze from a natural cause can rapidly change your readings. Less than ethical 'spiritual investigators' could even deliberately open a window or run water and not record that part on video, and abandoned old houses are very likely to have large openings that allow large drafts - the typical 30 years abandoned house has holes big enough for stray cats or raccoons to get in and out.

    So, would you get better data if you shielded a temperature probe from drafts, and placed it against a sizable thermal mass like a concrete wall or granite mantle-piece. What if you measured a 20 degree change in seconds on a heavy thermal mass object with a sensor that was protected from other sides by a sealed Styrofoam shell, while you had strips of light paper hung nearby in many directions to indicate possible drafts? You're not just looking for a change, but a change whose type and magnitude makes it less likely there's a sufficient natural explanation.

    Noises - Turn on the faucets and see if you can produce a natural water hammering noise. Make sure to include ones down in the basement or outside the house. Open chimney flues. Open or close furnace or air conditioning vents, even if they appear not to be hooked up to the main system any more. Try different settings in many combinations. Check water even if the water is supposedly completely turned off, as sometimes a little trickle is leaking, and it will build up to normal pressure and cause transient effects that you can't reproduce unless you let that pressure build up for days again. Do a survey of all the rooms, including closets, and look for evidence of nesting birds, rodents and other possible organic sources of odd sounds. You know all those movies with the wind blowing scratchy old tree branches across the shingles? Look for real possible cases of those. Watch for ways somebody could try to sneak up close to the house and deliberately hoax you, because anyone trying that will probably use noises. That doesn't mean, of course, that any noise you still can't explain is supernatural.

    Lights - A good camera could record a mysterious light accurately, much more accurately than a cheap one. Old fashioned film cameras might reveal things that don't show to digital ones, and vice versa. You might even be able to mount multiple types of cameras and/or film stocks so you could trigger them all at once and get interesting comparison photos. A simple prism can spread out the spectrum of a strange light on a flat wall, you can get a test light source that has known peak frequencies to 'calibrate' the prism so you aren't just reporting that the peak looked vaguely greenish, and a really strange spectrum that can't be from something like car headlights or a flashlight reflecting around might be pretty good evidence, or at least guide you in going further next time. A camera can record color much too faint for you to see, so photograph those faint specta with long exposures. Imagine if the spectrum you photograph is almost monochromatic, with only a few sharply defined peaks, and those are not on wavelengths that match any commercial laser pointer or specialty florescent bulb or other such source. Or what if a polarimeter reveals the odd light is elliptically polarised? A pair of polarised sunglasses and a bit of cross polarising filter you can rotate before them is a pretty cheap piece of test gear.

    Electronics. Old fashioned CB radios or kid's walkie-talkies might be less hypersenitive to interference than your modern devices. Experiment to find ways to communicate with helpers that don't seem subject to odd noises. What does your digital display look like when its signal is glitching from normal causes? What does your radio handset sound like as you and your helper walk farther and farther apart outdoors, until one of you walks under a highway overpass? If there is something really strange going on, you won't know it because systems are experiencing normal failures, but you might just spot something really interesting if the failure mode ISN'T one of the normal ones.

    --
    Who is John Cabal?
  21. Creeping Mysticism by ObsessiveMathsFreak · · Score: 4, Insightful

    I had noticed that reason and critical thinking were fading in the world of late, but I never thought that the rot would get so bad that the foremost geek site on the internet would be giving credence to this sort of rubbish. What the hell were the editors thinking? What should I even have to say that ghosts don't exist and that this "investigation" may as well be looking for invisible green unicorns?

    As a society, we're reverting back to superstition and ignorance. We've even given up on even imagining a better future.

    The only question I ask is: where did it all go wrong? When did the world abandon progress?

    --
    May the Maths Be with you!
    1. Re:Creeping Mysticism by repapetilto · · Score: 3, Interesting

      Progress= People have to be scared of less things, feel too cold or too hot less often, get a comfortable amount of sleep, can satisfy their various primal hungers (food, water, sex, knowledge) with less effort and consequences... everyone gets to explore their own concepts of the universe without artificial limits or interference from authority(as long as its not hurting someone elses... this gray area will always be there), you and you're loved ones dying less often (or never except due to extraordinary circumstances). The idea of an Utopia may be unattainable but didn't come to be out of nothing. (Progress= more like the star trek universe.) I'm not being facetious here. I really believe what I just wrote.

  22. Re:wow by causality · · Score: 3, Insightful
    This has to be the most calm and rational response I've had yet in this entire thread. That's most refreshing.

    Being willing to consider evidence which doesn't fit your world view is good.

    Putting unusual effort and resource into investigating something that you have very good reason to suspect is complete nonsense, is not good.

    I think *something* is going on that we don't yet know about. If there were only the occasional nutty person who claimed to see strange things, I'd say he/she is probably just a lunatic. The problem is when there are so many tens of thousands of reports. The problem is compounded when many of them come from respectable people who tend to be credible in other matters, show no signs of mental instability, and generally gain nothing but ridicule and ostracism from reporting such things.

    So what am I to believe? Are they all liars? Do that many people enjoy getting scorned, ridiculed, or thought of as crazy by their neighbors because of some strange form of masochism? Do that many people have such a specific type of hallucination, and particularly when multiple people witness the same thing, are they somehow having a shared hallucination? I find the above to be improbable. I find it more probable to believe that humanity hasn't yet learned about and figured out every possible thing under the sun, that there is still a great deal we don't know about the universe, that sometimes people encounter unknown phenomena. It could very well turn out to be not a physical phenomena, but rather an artifact of human consciousness -- either possibility could expand our knowledge of ourselves and our world.

    In a perfect world, a skeptic would be free to test absolutely everything, from the existence of ghosts, to periodically making sure that newtonian mechanics and basic chemistry still remain valid, and that science hasn't all changed over night. Out here in the real world, we have to prioritise our time onto things that have a better chance of being valid.

    Agreed, except that if one person wants to conduct an experiment like this, without taking away grant money and personnel that could be used for projects more likely to bear fruit, using his own time and his own money, I see no harm in it. I don't think he "has to" do anything just because someone else thinks he is wasting his time; I regard it as his time to use as he pleases. He seems to accept the necessity of producing actual evidence prior to drawing any conclusions and that's about all I would ask.

    And if everything I've said in the above applied to chemical anomalies then yes, I could understand why the occasional person might want to look into the matter. The fact is that I don't hear all the time about relatively credible people reporting chemical anomalies, or about chemical reactions yielding products wildly different from what theory predicts, so I don't consider it to be on the same footing.

    --
    It is a miracle that curiosity survives formal education. - Einstein
  23. Re:A good dose of: by Anonymous Coward · · Score: 3, Insightful

    Does anyone else find it humorous, and somewhat telling, that the GOP uses the commercial TLD?

  24. Re:You've got to be kidding me by plover · · Score: 5, Informative

    OK, well then go ahead and bring some common types of detection gear. Bring a digital camera (DSLR would be best, but bring the most sensitive you've got.) If you can find one, bring an EM detector. Perhaps bring a multi-band radio, one that has a manual squelch so you can hear the static, and with a portable antenna. Maybe an optical distance thermometer. And bring a video camera.

    Also bring some experimenting supplies. Aluminum foil and wire would be good. Duct tape and some tripods will be useful, as will a few ordinary tools (a multi-tool knife/pliers thing would probably suffice.) Various clear plastic bags. If you can, get different color LED flashlights to look at things under different colors of light. Plain white paper. A box to put stuff in.

    Go over how each of the things you brought detects something, then amplifies the results so you can see it. The camera detects light with a CMOS sensor, and does so in 1/60th of a second; the EM detector detects lines of magnetic flux with a coil of wire, etc.

    Explain how every sensor has its limits. For example, a light switch is a sensor of human fingers. It doesn't switch itself, a person has to push harder than the internal spring to toggle the lights. The light switch can't detect humans that don't press hard enough, but the lack of flipping doesn't prove there's no human there. Note also that the lack of flipping doesn't prove there IS a human there, either. Then take out the camera and explain how the CMOS sensor has a similar threshold, and requires a certain amount of light. Anything below that threshold proves only that there wasn't enough light.

    If a camera sensor has no light at all when you press the shutter, you'll find that the sensor is not perfect, and not all the cells are exactly pure black. The differences in the individual cells will show up as variations in black.

    Set the camera to RAW mode, or to the highest resolution possible. Change the ISO setting from "Auto" and set it to the highest possible value. Set the aperture as closed as possible (high F stop) and set the shutter speed as fast as possible. Fully obscure the camera lens with aluminum foil and take a couple of pictures, then magnify one of the pictures on the computer screen until you can clearly see distinct pixels. Notice how even though no light should have reached the lens, some of the pixels are brighter than others. Compare this to the other pictures you took of the covered lens, and look for differences between them. They might all be the same, or there might be some variations.

    Then take the still-foil-wrapped camera and put it someplace cold for a while, and take another couple of pictures of blackness once it chills. Finally, warm it up to body temperature and take another set of pictures. Compare all three temperature pictures, and look for differences. You might find something like the cold sensor pictures have a more consistent level of black, while the warm sensor pictures have less consistent black. Or the other way around.

    When you're bored of the camera, pull out the EM meter. Make various coils with the wire, and see if they affect the readings. See if having one end of the coil grounded makes a difference. See if grounding both ends makes a difference. See if having a person hold one end makes a difference. See if it makes a difference if the person is also running a video camera. See if it makes a difference if your cell phones are on or off. If you find a spot in the house with a strangely high EM reading, make a shield of aluminum foil and hook the wire to it and ground the other end, and see if that can change it.

    Try various things to reproduce anomalies you may have seen on the TV shows. Come up with hypotheses, and create experiments to confirm your suspicions.

    --
    John
  25. Ghosthunting 101 by Dr+MADD · · Score: 3, Interesting

    Quirkz, You might want to try out the following website: http://www.theshadowlands.net/ghost/. There is an awful lot of crap and the website is outdated, but there are some interesting things in it. The 'Haunted Places Index' under 'Haunted Places' gives a pretty thorough overview of haunted sites in your area, so you can at least visit places where other people have reported ghosts before (think 2008 was last time the list was updated, however). The 'Ghost Hunting' tab has a whole wealth of information about how to conduct a ghost hunt. The 'Galleries' tab holds a lot of "ghost evidence", as I guess it would be called. Some of it seems pretty convincing, or at least unexplainable, if you believe what the picture/EVP-takers are saying. And there's always all the ghost shows on the tv, too. Whatever yo do, it seems the best advice is to go in as a group, mostly for confidence and witnessing purposes.

    Ghost hunting is something I would like to try out once myself, just to see something that cannot be explained. The funny thing about ghosts is that for all their insubstantiality, usually the best hauntings have several items in common: the manifestations occur with regular frequency, the haunting is usually confined to specific locations, and that multiple people have experienced the same paranormal activity at the same time. How could anything so random and unpredictable as a ghost ever meet (and consistently meet) these requirements? Some other good questions:

    Why is it that most hauntings occur at night, or at least people get their best evidence at nighttime? How can animals and babies detect paranormal happenings, is this an ability we 'switch off' as mature humans so we don't experience sensory overload when we perceive our reality (perhaps this is why we experience hauntings at night, we're more attuned with the lights out)?

    How are haunted locations necessary for a manifestation; if a person died a hundred years ago, the Earth is millions of miles away from where it was in the universe when that person died, yet there continue to be sightings of the same ghosts, to the present day, in the same location? Do ghosts experience gravity, then? When the structure/location the ghosts appear in gets demolished or burned down, why do the paranormal happenings generally cease? Are ghosts prisoners or physic leftovers of the buildings where they lived? Is there a universal physic connection or lock to keep a ghost in place? Could it be moved? Could it be an energy source?

    When ghosthunters record EVPs, the responses they get occur either a second ahead or behind their questions, are ghosts slightly-off in the time-stream, or stuck inbetween or outside the reality we experience everyday (or is it just random fuzz in the recording equipment that's a coincidence)? How can something from the past, definitely dead and gone, influence actions and activities in the present? Is this the closest we can come to time travel? Is the past really there and we are experiencing it as it happened, or is it something entirely else? Is it possible the present can influence the activities of the past in this manner (how are ghosts answering questions in EVPs)? Are these just microcosmic "mini-pasts" that can only influence small areas of reality nearby and not actual links to the time stream (reminders)? Are there "time-bubbles" where the universe "messes up" reality? How come we never see ghosts or hauntings from the future?

    How come ghosts only seem to come from human beings and human activities? How come not dinosaurs or neanderthals? How come only certain circumstances and certain personalities leave hauntings behind, while the great majority of people leave no trace, paranormal or otherwise? Why only certain circumstances (murder, unrequited love, injustice) permit ghosts to occur while others do not? How come there are larger populations of ghosts seen in hopstials and mental asylums compared to normal domiciles?

    Anyway, this is a lot of rambling, but I hope I've raised some good questions for others to mull over. Good night, and good luck in your ghost searching.

  26. Re:A good dose of: by Hognoxious · · Score: 3, Funny

    Yeah, imagine if misinformation got mixed with politics!

    --
    Confucius say, "Find worm in apple - bad. Find half a worm - worse."
  27. That's why ghosts don't like skeptics! by billstewart · · Score: 4, Funny

    Have you ever wondered why skeptics never find ghosts? It's because, basically, skeptics are annoying people and ghosts don't like to hang around them. Too much negativity, and not enough good-looking cheerleader girlfriends, and especially not enough of the dumb ones who say "let's leave the rest of the party in the well-lit living room and go make out in the abandoned upstairs wing of the house - we don't need to bring a flashlight."

    --

    Bill Stewart
    New Fast-Compression-only CPR http://preview.tinyurl.com/dy575ks
  28. Re:I don't think that works by AAWood · · Score: 3, Insightful

    Things that exist have EVIDENCE.

    Actually, proving or disproving that statement is pretty much the crux of this whole debate. Can you prove or disprove that everything that exists must have evidence of it's existence, without falling into the circular logic of simply saying that the evidence is what demonstrates existence?

    The whole deal with the supernatural is that the scientific method falls down, because the believer can always either 1) claim the force at work is only detectable by "sensitive readers", not giving off any normal measureable forces, 2) claim the results of the tests were manipulated by the forces at work, or 3) claim the force at work was aware of being measured and, for whatever reason, refused to show. This is what the GP and others are trying to point out; stating that there has never been evidence for a phenomena isn't, strictly speaking, evidence against it. Whether that's because we're looking in the wrong place, looking in the wrong way, the tests are being subverted by the thing being searched for or the thing we're looking for isn't there is, again, the crux of this debate.

    For what it's worth, I'm a skeptic, and think ghosts are about as likely to exist as the good old flying spaghetti monster. But lets try to distinguish between what we believe, what is likely, and what is scientifically provable/disprovable. So put aside the fact that the idea of ghosts is a bit silly, and move to the more interesting topic of how we can prove/disprove them, or if indeed it's even possible to do so.