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Kameron Messmer Special user Billings, MT 742 Posts |
So I was giving a magic lesson and showed the kid and his dad the pulse stop principle. He said he was going to be a surgeon and years ago they had a little pen like device that could be used to "hear" a pulse using ultrasound. You'd Hook up a little speaker and put the pen to the wrist and you could hear the pulse beating. This way you could get the whole audience in on it, and the whole audience could hear it stop... better than one persons word, even though they are telling the truth. Anyone ever heard of this before, and what the device is called? where can you get one etc...
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Bill Ligon Inner circle A sure sign of a misspent youth: 6437 Posts |
All you need are an amplifier and speaker with a microphone. You might try something like a guitar pickup mic and an elastic strap to hold it to the wrist. The guitar mic has a clip that can hold other things than a guitar -- like a stick-like probe to touch the artery, if necessary, and ice-pick to turn a door into a microphone. (Think of other things!). There are myriad possibilities with this. You might look around under "electronic stethoscopes." For example: http://www.facelake.net/index.html
Tashi delek, Bill (Nal)
Author of THE HOLY ART: Bizarre Magick From Naljorpa's Cave. NOW IN HARDCOVER! VIEW: <BR>www.lulu.com/content/1399405 ORDER: http://stores.lulu.com/naljorpa
<BR>A TASSEL ON THE LUNATIC FRINGE |
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Harley Newman Inner circle 5117 Posts |
A stethoscope can be used, to great effect.
“You can’t depend on your eyes when your imagination is out of focus” -Mark Twain
www.bladewalker.com |
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magicusb Inner circle 1135 Posts |
There are also EKG machines that some have used.
Check out http://HoudiniOpoly.com
Houdini Museum Tour & Magic Show. Only building in the world dedicated to Houdini. http://Houdini.org http://HoudiniDisplays.com http://PsychicTheater.com Scranton, Pa (570) 342-5555 "The truth shall make you free, but first it will make you angry." -Robert Ingersoll-Atheist (on the mind of Houdini when he died.) We are thrilled we were able to bring The Grim Game to the world! Thanks TCM. |
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docsteve Inner circle 1831 Posts |
The device you are referring to is a Doppler pulsometer; you can buy easily. A digital stethoscope won't work. It listens to heart sounds and normally the peripheral pulses are silent.
Lior manor I beleive uses an infra red oximeter with that pleasing anaesthetic 'ping' that hear on movies (& in real practice) to demonstrate a pulse stop. I make the pulse stop visible with my version! Sorry for telegraph style writing - I'm on the iPhone. Steve
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magicusb Inner circle 1135 Posts |
Not all brands have sound. Not all brands monitor the pulse. Anyone actually know of the models and brands that would work?
Some have suggested a stethoscope hooked up to a microphone. Any suggestions how to get this effect hooking up a real ECG Monitor? PM me if you wish.
Check out http://HoudiniOpoly.com
Houdini Museum Tour & Magic Show. Only building in the world dedicated to Houdini. http://Houdini.org http://HoudiniDisplays.com http://PsychicTheater.com Scranton, Pa (570) 342-5555 "The truth shall make you free, but first it will make you angry." -Robert Ingersoll-Atheist (on the mind of Houdini when he died.) We are thrilled we were able to bring The Grim Game to the world! Thanks TCM. |
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aheads Regular user Stockholm, Sweden 188 Posts |
Old thread but still...
I just found out the hard way that a stethoscope doesn't hear the pulse on the wrist. A stethoscope can hear the heartbeat but is useless for the radial (wrist) pulse and brachial (inside arm) pulse. I have this in my seance show and have toyed with the idea of using a microphone on my wrist connect to an amplifier (or maybe hook-up a digital pulse meter). The problem is I think that the more technology you introduce to the routine, then the more the audience will look for where the gimmick is. A human hand on a human wrist can't lie...can it? A machine that beeps can just be a playback recording. A friend suggested that I use a stethoscope so my volunteer has a clear beat. I bought a medical stethoscope and just presumed that it would work. Oh well. Unless someone knows how to gimmick a stethoscope to render the earpieces silent or mute the diaphragm, then I just wasted some time and a little cash.
All that we see or seem is but a dream within a dream
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Brynmore14 Inner circle The Séance Chamber 1815 Posts |
Turn this problem on its head. Most people would assume a stethoscope would work. If one were to covertly tap the stethoscope then a pulse would be heard, even on the carotid artery, and could be stopped at will.
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weepinwil Inner circle USA 3828 Posts |
EKG machine will not work as the pulse is created by pressure change in the veins, like little waves, and EKG detects electrical impulse. If a person uses the EKG the unit is rigged or they actually stopped their heart. A recorded pulse could be used and use a device that looks like a medical device to complete the illustration. Hope this helps some. I usually have to reverse the illusion. My cadavers have no pulse so I have to create one.
"Til Death us do part!" - Weepin Willie
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Harley Newman Inner circle 5117 Posts |
I still like a stethoscope. It's portable. It's easy to use. Everybody understands it. It has, basically, nothing that can go wrong.
“You can’t depend on your eyes when your imagination is out of focus” -Mark Twain
www.bladewalker.com |
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Circusman Special user Kent, England. 555 Posts |
Hmm, I have a Doppler with the appropriate probe for veins (larger probes are used for pregnancy purposes).
I never gave it a thought to use it in a pulse stop routine. May be an interesting idea - except for the gel used which is messy at the best of times. Bobby. |
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Brynmore14 Inner circle The Séance Chamber 1815 Posts |
Http://forums.deeperblue.com/threads/yog......t.63788/
This contains some interesting ideas that could be applied by those with a knowledge of the asana, bandha and pranayama. |
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docsteve Inner circle 1831 Posts |
Re stethoscopes.
You can't hear the pulse over vessels, just the heart: if it is double sided (bell & diaphragm) then you twist it to activate the correct side. This would be a simple way of rendering it silent after you have stopped your pulse (it is also why you will see me blowing into the bell or tapping the diaphragm iin my day job!) Once I thought imy own model (some 20 years old now) was failing: when I took off the soft earbuds I was both amused and disgusted to find jammed full of earwax!
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aheads Regular user Stockholm, Sweden 188 Posts |
Quote:
On Mar 30, 2014, docsteve wrote: Docsteve - it is a twistable bell and diaphragm model but even when the diaphragm is in the "off" position, you can still hear a faint heartbeat being carried through the metal body to be picked up by the "on" bell. I thought of that idea but dismissed it when I noticed the faint heartbeat. I will try to experiment a little and see if moving the "off" diaphragm an inch or two sideways eliminates the faint heartbeat.
All that we see or seem is but a dream within a dream
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docsteve Inner circle 1831 Posts |
Ok Aheads - try this: block your bell end with blu-tack.
By which I mean the stethoscope! Also don't worry about a faint noise - a nervous spectator who hears a loud heartbeat will be doing well; if its just faint chances are it will be reported as absent. If it IS heard faintly, then smile and say THAT is the power - to relax the heart so much it appears to have stopped peripherally, though OBVIOUSLY some pumping has to occur, if only to get blood to your pineal gland/third eye... hope this helps Steve
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Circusman Special user Kent, England. 555 Posts |
Quote : Ok Aheads - try this: block your bell end with blu-tack.
Wish I'd read the rest of this post before trying it out. Bobby. |
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MatCult Inner circle 1518 Posts |
Quote:
On Mar 31, 2014, Circusman wrote: Hahahaha!
"Disbelief in magic can force a poor soul into believing in government and business."
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aheads Regular user Stockholm, Sweden 188 Posts |
Quote:
On Mar 31, 2014, docsteve wrote: Just a normal Saturday night then... I'll give it a try and let you know.
All that we see or seem is but a dream within a dream
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aheads Regular user Stockholm, Sweden 188 Posts |
OK. I've tried blu-tak and tape but you can still hear it. I think I have found a work around though using a mixture of Brynmore14's idea, misdirection and gutsy bravado.
All that we see or seem is but a dream within a dream
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Brynmore14 Inner circle The Séance Chamber 1815 Posts |
Excellent, glad you found an answer.
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