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PICList Thread
'16f84 bio-emulator'
1998\06\12@063426 by Karsten Krause

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Hi all,
I just started work on a PIC 16F84 emulator using 8 lab mice to simulate
the latches. Does anybody know about typical delay constants for one
inch of the central tail nerve ? Any suggestions for a diet that reduces
this time ? Where should I connect pin 5 of the 555s ?

Cheers,
Karsten

1998\06\14@215519 by Ingmar Meins

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I believe that on male mice you will find a 3 pin connector at the rear, the
middle one is active and the two outside ones are commoned, neutral. Care
should be taken to insulate the teeth (on the mice) when making the
connection as pin 5 of the 555 will probably cause considerable stimulation
of the middle pin.. Also were rubber gloves in case there is any leakage
current......

Ingmar

Karsten Krause wrote:

> Hi all,
> I just started work on a PIC 16F84 emulator using 8 lab mice to simulate
> the latches. Does anybody know about typical delay constants for one
> inch of the central tail nerve ? Any suggestions for a diet that reduces
> this time ? Where should I connect pin 5 of the 555s ?
>
> Cheers,
> Karsten

1998\06\14@215611 by smg

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Karsten:

The nervous impuse along the neuron is an electrical phenomenon
characterized by a Na - K eflux-influx and travels at a velocity of
approximately 130 miles per hour.  So you may do the simple ratio:  one
inch is to 130 miles as t is to 3600 seconds.  Revise for mS or uS.
Connect pin to a 0.01uF cap to zero volt return.

It sounds like an interesting project.  Have you considered stimulating the
hypothalamus to see if you develop the "orgasmatron" effect?  I don't know
how you could verify its effectiveness or lack thereof.  Perhaps some
optical device to scan the eye for utopian expression.  Some subjective
element is perhaps necessary.

Friendly regards
Richard

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1998\06\14@215621 by Wim E. van Bemmel

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Karsten, you should know better.

The propagation speed is measured in m/s, not in inches per second.
Pin 5 should of course be connected to the corresponding nipple.
Use nipple depilator as prescribed.
Replace the mouse by our beloved cow if you have no spectacles around to be
able to count the mouse's. It is a bless to be shortsighted in this case!
The goat also could do, only in serious emergency. Good luck!

Karsten Krause wrote:

{Quote hidden}

--
 Regards,

 ------------------------------------------------------------------
 Wim E. van Bemmel
 No Unsollicited Commercial bemspanspamKILLspamxs4all.nl
 Life is about Interfacing ....
 ------------------------------------------------------------------

1998\06\14@215645 by David VanHorn

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>Hi all,
>I just started work on a PIC 16F84 emulator using 8 lab mice to simulate
>the latches. Does anybody know about typical delay constants for one
>inch of the central tail nerve ? Any suggestions for a diet that reduces
>this time ? Where should I connect pin 5 of the 555s ?
>
>Cheers,
>Karsten

This would be a welcome improvement over some emulators I've seen,
at least the mice would get it right SOMETIMES.. :)

1998\06\14@215710 by Thomas McGahee

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Karsten,
You can reduce the impulse delay caused by the central tail
nerve quite elegantly by simply cutting the tail shorter.
Professor Stew Pid has taken this approach even further...
he cut the tails off of a hundred mice and simply lashed
all the tails together in series. It turns out that the
major nervous system delay factor was not the tail after
all, but the higly inefficient spinal column connection
to the mouse's central processing unit. Personally, I
believe that the ultimate method of reducing nervous
system delay would be to totally eliminate the nervous
system!! Imagine the speed you could get if you just
took 100 mouse brains and interconnected them directly!
Stacking them in a cube shape would be most efficient.
Getting the data IN and OUT of this array might be a
minor problem, but perhaps this can be solved in
software.

Hope this helps.
Fr. Tom McGahee

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1998\06\15@111146 by Martin Green

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    Pin 5 should be connected to ground through a garden variety bonobo
    monkey. Failure to do so could result in unexpected circuit behaviour,
    such as excessive cheese consumption.


    Martin.

    BTW, the use of siamese-twin lab mice will allow half the device
    count.


______________________________ Reply Separator _________________________________
Subject: 16f84 bio-emulator
Author:  pic microcontroller discussion list <PICLISTspamspam_OUTMITVMA.MIT.EDU> at
Internet
Date:    6/12/98 11:57 AM


Hi all,
I just started work on a PIC 16F84 emulator using 8 lab mice to simulate
the latches. Does anybody know about typical delay constants for one
inch of the central tail nerve ? Any suggestions for a diet that reduces
this time ? Where should I connect pin 5 of the 555s ?

Cheers,
Karsten

1998\06\15@212441 by Sean Breheny

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On Mon, 15 Jun 1998, Martin Green wrote:

>      Pin 5 should be connected to ground through a garden variety bonobo
>      monkey. Failure to do so could result in unexpected circuit behaviour,
>      such as excessive cheese consumption.
>
>
>      Martin.
>
>      BTW, the use of siamese-twin lab mice will allow half the device
>      count.
>

They also count as "matched" components, so you can use them in
differential pairs. :)

Sean




>
> ______________________________ Reply Separator _______________________________
__
{Quote hidden}

1998\06\16@094121 by n/a

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Martin Green wrote:
>
>      Pin 5 should be connected to ground through a garden variety bonobo
>      monkey. Failure to do so could result in unexpected circuit behaviour,
>      such as excessive cheese consumption.

Don't forget to mount a scratch monkey for calibrations (couldn't resist
a straight line like that).

--
Neil Cherry     http://home.att.net/~ncherry    KILLspamncherryKILLspamspamworldnet.att.net

1998\06\16@113034 by Martin McCormick

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Sean Breheny writes:
>On Mon, 15 Jun 1998, Martin Green wrote:
>
>>      Pin 5 should be connected to ground through a garden variety bonobo
>>      monkey. Failure to do so could result in unexpected circuit behaviour,
>>      such as excessive cheese consumption.
>>
>>
>>      Martin.
>>
>>      BTW, the use of siamese-twin lab mice will allow half the device
>>      count.
>>
>
>They also count as "matched" components, so you can use them in
>differential pairs. :)
>
>Sean

       If you use the Siamese lab mice, be sure to derat each component
by 50% to stay within current bite-count tolerances for each one.
Do not use UNIX in your developer software because the cat command has
obvious problems in this type of environment.  Windows is a good
choice because it attracts mice and any traps set to correct problem
conditions produce very graphic results.

       Be sure to check your mice for deer ticks in order to avoid later
bugs in the system.

Martin McCormick


>When puns are outlawed, only outlaws will make puns.>

1998\06\16@224928 by Russell McMahon

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Also known as long tail pairs.

>From: Martin McCormick <RemoveMEmartinTakeThisOuTspamDC.CIS.OKSTATE.EDU>

>Sean Breheny writes:
>>On Mon, 15 Jun 1998, Martin Green wrote:
....

>>They also count as "matched" components, so you can use
them in
>>differential pairs. :)

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