Alt-BEAM Archive

Message #09535



To: "'beam@sgiblab.sgi.com'" beam@sgiblab.sgi.com
From: Wilf Rigter Wilf.Rigter@powertech.bc.ca
Date: Tue, 25 Jan 2000 16:50:30 -0800
Subject: [alt-beam] Re: New symbol for BEAM lexicon. Let's try 'Mind Control'


Thanks for the warning Dennison,

But if you stick with low voltage batteries, you won't electrocute yourself.
Probably the worst case scenario is to touch a 9V battery to your tongue
resulting in the characteristic "sour" taste. Still, Murphy's law and all
that.

Mind control eh? A good idea lighting up that lightbulb!
There have been a few projects published for ALPHA wave detectors but those
are quite challenging. How about a heart rate modulated wearable pummer. If
you jog or bicycle in the evening, the LEDs will flash as a road warning,
synchronized to your heart beat.

regards

wilf


> -----Original Message-----
> From: Dennison Bertram [SMTP:dibst11+@pitt.edu]
> Sent: Tuesday, January 25, 2000 1:16 PM
> To: beam@sgiblab.sgi.com
> Subject: New symbol for BEAM lexicon. Let's try 'Mind Control'
>
> general disclaimer,
>
> I'll say out loud DO NOT DO THIS. NO ONE TRY THIS AT ALL. Honestly, no one
> should get shocked or anything, especially if you run this off a battery,
> but 100ma is enough to stop your heart, and batteries have more than
> enough
> to do the job.
>
> if any of you built some incredible machine with mind controll, you know,
> I wouldn't mind
> a little credit in my direction. :-). Hey, Wilf, you might enjoy this.
>
> later
> dennison
>



9536 Tue, 25 Jan 2000 19:18:34 -0600 [alt-beam] Re: Beam And IR light beam@sgiblab.sgi.com Brad Guillot Thanks very much, this helps me a lot
thanks too ben.
What about solid state relays for beam, wouldn't that be just like a
transistor?

Richard Weait wrote:
>
> At 06:25 PM 1/24/00 -0600, Brad wrote:
> [snip]
> > Now for the real question-What is a relay, how does it work, and how
> >do you read the schematic symbol. I ask this because the only ir
> >transmitter receiver pair of schematics i have uses a relay. I suspect
> >it is like an electronic pushbutton switch, but that is a guess. any
> >help is welcomed
>
> Hi Brad,
>
> A relay is a device that has mechanical, electrical and
> magnetic properties. It is like a switch in some ways.
> Let's start with the schematic symbol:
>
> 1______
> _)|| |> /<|
> _)|| | / |
> 2______)|| | / |
> | | |
> 3 4 5
>
> Figure 1 Single pole relay
>
> Okay. Terminals one and two are the ends of a "coil." Three,
> four and five are the "contacts." In the schematic, contact four
> is bent, and looks like it is touching contact five. Contact four
> is called the "common" contact; in a real relay it can move so
> that it will touch either contact five or contact three. A spring
> will hold the common contact against the "normally closed" contact,
> number five; four and five are a normally closed switch.
>
> When the correct voltage is connected to the coil (and enough
> current is available) the coil becomes magnetic and overcomes the
> spring that is holding the common contact. This causes number
> four to leave contact five and connect to the "normally open"
> number three contact. When the voltage is disconnected the common
> contact returns to it's normal position.
>
> The schematic shows a single pole relay; multi-pole relays can
> be shown by duplicating the contact section.
>
> 1______
> _)|| |> /<| |> /<|
> _)|| | / | | / |
> 2______)|| | / | | / |
> | | | | | |
> 3 4 5 6 7 8
>
> Figure 2 Double pole relay
>
> Sometimes the contacts are shown far away from the coil in a
> diagram, or with no coil at all. Sometimes the contacts look
> like this:
>
> | |
> ----| |----
> | |
> normally open
>
> | |/
> ----|/|----
> /| |
> normally closed
>
> Each industry may have special terms for relay parts or functions.
> I've heard normally open contacts called "'making' contacts" and
> normally closed called "'breaking' contacts" You can also see
> references to "Form A", "Form B" and "Form C" contacts.
>
> Relays can be used to switch one type of power in the contacts
> with another type in the coil. For instance, an elevator-lift
> motor of many horsepower can be switched by relay contacts that
> have a 24Vdc coil.
>
> Relays can be used to implement logic, latches, lockouts and
> many other 'L'-words :-)
>
> Relays can be found in many sizes from 'teeny-tiny' to 'Wow!
> That's huge!' and in many input and output configurations.
> Example input (coils) low voltage DC, low voltage AC, line voltage,
> low current. . . Example output (contacts) single pole, double
> pole, many pole, multi-Amp current rated, multi horsepower.
> Special features: latching relays, wetted contacts, time-delay,
> indicator light. . . etc.
>
> Cheers,
>
> Richard.
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9537 Tue, 25 Jan 2000 21:31:35 -0500 [alt-beam] Re: fido "Richard Caudle"
content-transfer-encoding: quoted-printable

Hello Stephane!

You can find the circuit, by Wilf (natch!), in the archives. I also have a=
link on my HPV Project page on my site. You can also go the www.egroups.c=
om and look in the alt-beam list. It's called BEAM Sonics.

www.geocities.com/frankendaddy/sonics.html

Richard Caudle
www.geocities.com/frankendaddy/BEAM.html
Home ICQ - Frankendaddy

---------------------------------------------------------------------------=
-----

Guardians of the sacred words: Nee, Ptang, and NeeWhon! =



content-transfer-encoding: quoted-printable



>
Hello Stephane!
 

You can find the circuit, by Wil=
f =

(natch!), in the archives.  I also have a link on my HPV Project page =
on my =

site.  You can also go the
href=3D"www.egroups.com">http://www.egroups.com">www.egroups.com and look in the alt-bea=
m =

list.  It's called BEAM Sonics.

 


href=3D"www.geocities.co=">http://www.geocities.com/frankendaddy/sonics.html">www.geocities.co=
m/frankendaddy/sonics.html

 

Richard Caudle

href=3D"www.geocities.com/=">http://www.geocities.com/frankendaddy/BEAM.html">www.geocities.com/=
frankendaddy/BEAM.html
Home =

ICQ - Frankendaddy




Guardians of the sacred words: N=
ee, =

Ptang, and NeeWhon!         =





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